DATABASE RESOURCES PRICING ABOUT US

{"id": "CVE-2021-31201", "vendorId": null, "type": "cve", "bulletinFamily": "NVD", "title": "CVE-2021-31201", "description": "Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31199.", "published": "2021-06-08T23:15:00", "modified": "2022-07-12T17:42:00", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 4.6}, "severity": "MEDIUM", "exploitabilityScore": 3.9, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}, "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-31201", "reporter": "secure@microsoft.com", "references": ["https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31201"], "cvelist": ["CVE-2021-31199", "CVE-2021-31201"], "immutableFields": [], "lastseen": "2022-07-13T15:58:31", "viewCount": 334, "enchantments": {"dependencies": {"references": [{"type": "attackerkb", "idList": ["AKB:50EC30BE-5E8C-4158-8AA0-06397441F8A5", "AKB:DBAEA288-D224-49E1-877D-628DFD1CF161"]}, {"type": "avleonov", "idList": ["AVLEONOV:9D3D76F4CC74C7ABB8000BC6AFB2A2CE"]}, {"type": "checkpoint_advisories", "idList": ["CPAI-2021-0314", "CPAI-2021-0317"]}, {"type": "cve", "idList": ["CVE-2021-31199"]}, {"type": "googleprojectzero", "idList": ["GOOGLEPROJECTZERO:CA925EE6A931620550EF819815B14156"]}, {"type": "kaspersky", "idList": ["KLA12198", "KLA12202"]}, {"type": "krebs", "idList": ["KREBS:E374075CAB55D7AB06EBD73CB87D33CD"]}, {"type": "malwarebytes", "idList": ["MALWAREBYTES:84CB84E43C5F560FDE9B8B7E65F7C4A3"]}, {"type": "mmpc", "idList": ["MMPC:85647D37E79AFEF2BFF74B4682648C5E"]}, {"type": "mscve", "idList": ["MS:CVE-2021-31199", "MS:CVE-2021-31201"]}, {"type": "mssecure", "idList": ["MSSECURE:85647D37E79AFEF2BFF74B4682648C5E"]}, {"type": "nessus", "idList": ["SMB_NT_MS21_JUN_5003635.NASL", "SMB_NT_MS21_JUN_5003637.NASL", "SMB_NT_MS21_JUN_5003638.NASL", "SMB_NT_MS21_JUN_5003646.NASL", "SMB_NT_MS21_JUN_5003681.NASL", "SMB_NT_MS21_JUN_5003687.NASL", "SMB_NT_MS21_JUN_5003694.NASL", "SMB_NT_MS21_JUN_5003695.NASL", "SMB_NT_MS21_JUN_5003697.NASL"]}, {"type": "qualysblog", "idList": ["QUALYSBLOG:0082A77BD8EFFF48B406D107FEFD0DD3", "QUALYSBLOG:23EF75126B24C22C999DAD4D7A2E9DF5", "QUALYSBLOG:BC22CE22A3E70823D5F0E944CBD5CE4A"]}, {"type": "rapid7blog", "idList": ["RAPID7BLOG:E44F025D612AC4EA5DF9F2B56FF8680C"]}, {"type": "securelist", "idList": ["SECURELIST:BB0230F9CE86B3F1994060AA0A809C08"]}, {"type": "thn", "idList": ["THN:1DDE95EA33D4D9F304973569FC787451", "THN:DFA2CC41C78DFA4BED87B1410C21CE2A"]}, {"type": "threatpost", "idList": ["THREATPOST:61CC1EAC83030C2B053946454FE77AC3"]}]}, "exploitation": {"wildExploitedSources": [{"type": "attackerkb", "idList": ["AKB:50EC30BE-5E8C-4158-8AA0-06397441F8A5", "AKB:DBAEA288-D224-49E1-877D-628DFD1CF161"]}], "wildExploited": true}, "score": {"value": 3.6, "vector": "NONE"}, "twitter": {"counter": 8, "tweets": [{"link": "https://twitter.com/WolfgangSesin/status/1403148812818997250", "text": "New post from https://t.co/uXvPWJy6tj?amp=1 (CVE-2021-31201 (windows_server_2008, windows_server_2012)) has been published on https://t.co/irQdxA9hHS?amp=1"}, {"link": "https://twitter.com/ipssignatures/status/1403095130752655361", "text": "It's new to me that Astaro has a protection/signature/rule for the vulnerability CVE-2021-31201.\nhttps://t.co/3vatrWyN8G?amp=1\n/search?src=sprv&q=CVE-2021-31201\nThe vuln was published 1 days ago by NIST.\n/hashtag/S34xo2uxlld642?src=hashtag_click"}, {"link": "https://twitter.com/www_sesin_at/status/1403148809706819585", "text": "New post from https://t.co/9KYxtdZjkl?amp=1 (CVE-2021-31201 (windows_server_2008, windows_server_2012)) has been published on https://t.co/3xA9vxt2MX?amp=1"}, {"link": "https://twitter.com/CERT_FR/status/1402642477681627140", "text": "Alerte CERT-FR\n\nMicrosoft a publi\u00e9 des correctifs pour les vuln\u00e9rabilit\u00e9s CVE-2021-31199, CVE-2021-31201, CVE-2021-31956, CVE-2021-33739, CVE-2021-31955 et CVE-2021-33742.\nCes vuln\u00e9rabilit\u00e9s sont activement exploit\u00e9es dans le cadre d'attaques cibl\u00e9es.\nhttps://t.co/Wd8voYQmOS?amp=1"}, {"link": "https://twitter.com/CERT_FR/status/1402642477681627140", "text": "Alerte CERT-FR\n\nMicrosoft a publi\u00e9 des correctifs pour les vuln\u00e9rabilit\u00e9s CVE-2021-31199, CVE-2021-31201, CVE-2021-31956, CVE-2021-33739, CVE-2021-31955 et CVE-2021-33742.\nCes vuln\u00e9rabilit\u00e9s sont activement exploit\u00e9es dans le cadre d'attaques cibl\u00e9es.\nhttps://t.co/Wd8voYQmOS?amp=1"}, {"link": "https://twitter.com/GrupoICA_Ciber/status/1403261629664579587", "text": "MICROSOFT\nM\u00faltiples vulnerabilidades de severidad alta en productos MICROSOFT: \n\nCVE-2021-31938,CVE-2021-26420,CVE-2021-31943,CVE-2021-31942,CVE-2021-1675,CVE-2021-31201,CVE-2021-31941,CVE-202[...]\n\nM\u00e1s info en: https://t.co/taRlYgcx1Y?amp=1\n/hashtag/ciberseguridad?src=hashtag_click /hashtag/grupoica?src=hashtag_click /hashtag/microsoft?src=hashtag_click"}, {"link": "https://twitter.com/www_sesin_at/status/1403843368141086723", "text": "New post from https://t.co/9KYxtdZjkl?amp=1 (CVE-2021-31201 (windows_server_2012, windows_server_2008)) has been published on https://t.co/PSqFdPO8yz?amp=1"}, {"link": "https://twitter.com/WolfgangSesin/status/1403843370737442818", "text": "New post from https://t.co/uXvPWJy6tj?amp=1 (CVE-2021-31201 (windows_server_2012, windows_server_2008)) has been published on https://t.co/my218F8TQ6?amp=1"}], "modified": "2021-06-11T07:40:17"}, "backreferences": {"references": [{"type": "attackerkb", "idList": ["AKB:50EC30BE-5E8C-4158-8AA0-06397441F8A5", "AKB:DBAEA288-D224-49E1-877D-628DFD1CF161"]}, {"type": "avleonov", "idList": ["AVLEONOV:9D3D76F4CC74C7ABB8000BC6AFB2A2CE"]}, {"type": "checkpoint_advisories", "idList": ["CPAI-2021-0314"]}, {"type": "cve", "idList": ["CVE-2021-31199"]}, {"type": "kaspersky", "idList": ["KLA12198", "KLA12202"]}, {"type": "krebs", "idList": ["KREBS:E374075CAB55D7AB06EBD73CB87D33CD"]}, {"type": "malwarebytes", "idList": ["MALWAREBYTES:84CB84E43C5F560FDE9B8B7E65F7C4A3"]}, {"type": "mscve", "idList": ["MS:CVE-2021-31199", "MS:CVE-2021-31201"]}, {"type": "nessus", "idList": ["SMB_NT_MS21_JUN_5003681.NASL"]}, {"type": "qualysblog", "idList": ["QUALYSBLOG:23EF75126B24C22C999DAD4D7A2E9DF5"]}, {"type": "rapid7blog", "idList": ["RAPID7BLOG:E44F025D612AC4EA5DF9F2B56FF8680C"]}, {"type": "securelist", "idList": ["SECURELIST:BB0230F9CE86B3F1994060AA0A809C08"]}, {"type": "thn", "idList": ["THN:1DDE95EA33D4D9F304973569FC787451"]}, {"type": "threatpost", "idList": ["THREATPOST:61CC1EAC83030C2B053946454FE77AC3"]}]}, "vulnersScore": 3.6}, "_state": {"wildexploited": 0, "dependencies": 1659988328, "score": 1659900566}, "_internal": {"score_hash": "8c7ce0d2a75cd8565f19396a131c57e5"}, "cna_cvss": {"cna": null, "cvss": {}}, "cpe": ["cpe:/o:microsoft:windows_server_2012:-", "cpe:/o:microsoft:windows_server_2008:-", "cpe:/o:microsoft:windows_server_2008:r2", "cpe:/o:microsoft:windows_server_2012:r2"], "cpe23": ["cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*", "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*"], "cwe": ["NVD-CWE-noinfo"], "affectedSoftware": [{"cpeName": "microsoft:windows_server_2008", "version": "r2", "operator": "eq", "name": "microsoft windows server 2008"}, {"cpeName": "microsoft:windows_server_2012", "version": "r2", "operator": "eq", "name": "microsoft windows server 2012"}, {"cpeName": "microsoft:windows_server_2008", "version": "-", "operator": "eq", "name": "microsoft windows server 2008"}, {"cpeName": "microsoft:windows_server_2012", "version": "-", "operator": "eq", "name": "microsoft windows server 2012"}], "affectedConfiguration": [], "cpeConfiguration": {"CVE_data_version": "4.0", "nodes": [{"operator": "OR", "children": [], "cpe_match": [{"vulnerable": true, "cpe23Uri": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*", "cpe_name": []}, {"vulnerable": true, "cpe23Uri": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "cpe_name": []}, {"vulnerable": true, "cpe23Uri": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*", "cpe_name": []}, {"vulnerable": true, "cpe23Uri": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "cpe_name": []}]}]}, "extraReferences": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31201", "name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31201", "refsource": "MISC", "tags": ["Patch", "Vendor Advisory"]}]}

{"cisa_kev": [{"lastseen": "2022-08-10T17:26:47", "description": "Microsoft Enhanced Cryptographic Provider Privilege Escalation Vulnerability. This CVE ID is unique from CVE-2021-31199.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-11-03T00:00:00", "type": "cisa_kev", "title": "Microsoft Enhanced Cryptographic Provider Privilege Escalation Vulnerabilities", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-31199", "CVE-2021-31201"], "modified": "2021-11-03T00:00:00", "id": "CISA-KEV-CVE-2021-31201", "href": "", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-08-10T17:26:47", "description": "Microsoft Enhanced Cryptographic Provider Privilege Escalation Vulnerability. This CVE ID is unique from CVE-2021-31201.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-11-03T00:00:00", "type": "cisa_kev", "title": "Microsoft Enhanced Cryptographic Provider Privilege Escalation Vulnerabilities", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-31199", "CVE-2021-31201"], "modified": "2021-11-03T00:00:00", "id": "CISA-KEV-CVE-2021-31199", "href": "", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}], "cve": [{"lastseen": "2022-07-13T15:58:31", "description": "Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31201.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-06-08T23:15:00", "type": "cve", "title": "CVE-2021-31199", "cwe": ["NVD-CWE-noinfo"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-31199", "CVE-2021-31201"], "modified": "2022-07-12T17:42:00", "cpe": ["cpe:/o:microsoft:windows_server_2012:-", "cpe:/o:microsoft:windows_server_2008:-", "cpe:/o:microsoft:windows_server_2008:r2", "cpe:/o:microsoft:windows_server_2012:r2"], "id": "CVE-2021-31199", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-31199", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*", "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*"]}], "attackerkb": [{"lastseen": "2021-11-27T04:47:40", "description": "Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31201.\n\n \n**Recent assessments:** \n \n**gwillcox-r7** at June 17, 2021 4:20pm UTC reported:\n\nNot got much to contribute due to limited public information at this time but I did want to note that the `Confidentiality` and `Integrity` scores for this are oddly listed as `Low`, the `Availability` as `None`, and yet `Scope` is marked as `Changed`. My guess is that this is some sort of sandbox related escape given that if we were able to get higher permissions these scores would be a lot higher.\n\n**architect00** at June 09, 2021 6:57am UTC reported:\n\nNot got much to contribute due to limited public information at this time but I did want to note that the `Confidentiality` and `Integrity` scores for this are oddly listed as `Low`, the `Availability` as `None`, and yet `Scope` is marked as `Changed`. My guess is that this is some sort of sandbox related escape given that if we were able to get higher permissions these scores would be a lot higher.\n\nAssessed Attacker Value: 3 \nAssessed Attacker Value: 3Assessed Attacker Value: 0\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-06-08T00:00:00", "type": "attackerkb", "title": "CVE-2021-31199", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201"], "modified": "2021-06-16T00:00:00", "id": "AKB:DBAEA288-D224-49E1-877D-628DFD1CF161", "href": "https://attackerkb.com/topics/GmE7G3wbbK/cve-2021-31199", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-08-04T05:06:08", "description": "Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31199.\n\n \n**Recent assessments:** \n \n**gwillcox-r7** at June 17, 2021 4:19pm UTC reported:\n\nNot got much to contribute due to limited public information at this time but I did want to note that the `Confidentiality` and `Integrity` scores for this are oddly listed as `Low`, the `Availability` as `None`, and yet `Scope` is marked as `Changed`. My guess is that this is some sort of sandbox related escape given that if we were able to get higher permissions these scores would be a lot higher.\n\n**architect00** at June 09, 2021 6:55am UTC reported:\n\nNot got much to contribute due to limited public information at this time but I did want to note that the `Confidentiality` and `Integrity` scores for this are oddly listed as `Low`, the `Availability` as `None`, and yet `Scope` is marked as `Changed`. My guess is that this is some sort of sandbox related escape given that if we were able to get higher permissions these scores would be a lot higher.\n\nAssessed Attacker Value: 3 \nAssessed Attacker Value: 3Assessed Attacker Value: 0\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-06-08T00:00:00", "type": "attackerkb", "title": "CVE-2021-31201", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201"], "modified": "2021-06-11T00:00:00", "id": "AKB:50EC30BE-5E8C-4158-8AA0-06397441F8A5", "href": "https://attackerkb.com/topics/DEo4rIL8JT/cve-2021-31201", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "mscve": [{"lastseen": "2022-08-16T18:28:45", "description": "Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31201. \n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-06-08T07:00:00", "type": "mscve", "title": "Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability", "bulletinFamily": "microsoft", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201"], "modified": "2021-06-08T07:00:00", "id": "MS:CVE-2021-31199", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31199", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-08-16T18:28:45", "description": "Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31199. \n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-06-08T07:00:00", "type": "mscve", "title": "Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability", "bulletinFamily": "microsoft", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201"], "modified": "2021-06-08T07:00:00", "id": "MS:CVE-2021-31201", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31201", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "checkpoint_advisories": [{"lastseen": "2022-02-16T19:34:27", "description": "An elevation of privilege vulnerability exists in Microsoft Windows. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 7.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-06-08T00:00:00", "type": "checkpoint_advisories", "title": "Microsoft Windows dssenh.dll Elevation of Privilege (CVE-2021-31201)", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-31201"], "modified": "2021-06-08T00:00:00", "id": "CPAI-2021-0314", "href": "", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-02-16T19:34:25", "description": "An elevation of privilege vulnerability exists in Microsoft Windows. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 7.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-06-08T00:00:00", "type": "checkpoint_advisories", "title": "Microsoft Windows rsaenh.dll Elevation of Privilege (CVE-2021-31199)", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-31199"], "modified": "2021-06-08T00:00:00", "id": "CPAI-2021-0317", "href": "", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}], "thn": [{"lastseen": "2022-07-29T03:59:29", "description": "[](<https://thehackernews.com/new-images/img/b/R29vZ2xl/AVvXsEjRrnxKtJzXQbaLrPRY2GEIij8so07HImMs9wbPTTP-j92ED6wxTFv-NdQyw_Z0JBlqIYh-H3g2WKAcIkt70zKcB5AxP9KcQgCqChBwNsYPu9CQ_Xp6uBmkhxyoNZpHZIIQrV5TkreAFNBg-kFpOzjxBYxhl5bZqKZH6j9zgyd3itncGVyM5L09fy-c/s728-e100/windows-hacker.jpg>)\n\nA cyber mercenary that \"ostensibly sells general security and information analysis services to commercial customers\" used several Windows and Adobe zero-day exploits in limited and highly-targeted attacks against European and Central American entities.\n\nThe company, which Microsoft describes as a private-sector offensive actor (PSOA), is an Austria-based outfit called [DSIRF](<https://web.archive.org/web/20220713203741/https:/dsirf.eu/about/>) that's linked to the development and attempted sale of a piece of cyberweapon referred to as **Subzero**, which can be used to hack targets' phones, computers, and internet-connected devices.\n\n\"Observed victims to date include law firms, banks, and strategic consultancies in countries such as Austria, the United Kingdom, and Panama,\" the tech giant's cybersecurity teams [said](<https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/>) in a Wednesday report.\n\nMicrosoft is [tracking](<https://blogs.microsoft.com/on-the-issues/2022/07/27/private-sector-cyberweapons-psoas-knotweed/>) the actor under the moniker KNOTWEED, continuing its trend of terming PSOAs using names given to trees and shrubs. The company previously designated the name [SOURGUM](<https://thehackernews.com/2021/07/israeli-firm-helped-governments-target.html>) to Israeli spyware vendor Candiru.\n\nKNOTWEED is known to dabble in both access-as-a-service and [hack-for-hire](<https://thehackernews.com/2022/06/google-blocks-dozens-of-malicious.html>) operations, offering its toolset to third parties as well as directly associating itself in certain attacks.\n\nWhile the former entails the sales of end-to-end hacking tools that can be used by the purchaser in their own operations without the involvement of the offensive actor, hack-for-hire groups run the targeted operations on behalf of their clients.\n\nThe deployment of Subzero is said to have transpired through the exploitation of numerous issues, including an attack chain that abused an unknown Adobe Reader remote code execution (RCE) flaw and a zero-day privilege escalation bug ([CVE-2022-22047](<https://thehackernews.com/2022/07/microsoft-releases-fix-for-zero-day.html>)), the latter of which was addressed by Microsoft as part of its July Patch Tuesday updates.\n\n\"The exploits were packaged into a PDF document that was sent to the victim via email,\" Microsoft explained. \"CVE-2022-22047 was used in KNOTWEED related attacks for privilege escalation. The vulnerability also provided the ability to escape sandboxes and achieve system-level code execution.\"\n\nSimilar attack chains observed in 2021 leveraged a combination of two Windows privilege escalation exploits (CVE-2021-31199 and CVE-2021-31201) in conjunction with an Adobe reader flaw (CVE-2021-28550). The three vulnerabilities were [resolved](<https://thehackernews.com/2021/06/update-your-windows-computers-to-patch.html>) in June 2021.\n\nThe deployment of Subzero subsequently occurred through a fourth exploit, this time taking advantage of a privilege escalation vulnerability in the Windows Update Medic Service ([CVE-2021-36948](<https://thehackernews.com/2021/08/microsoft-releases-windows-updates-to.html>)), which was closed by Microsoft in August 2021.\n\nBeyond these exploit chains, Excel files masquerading as real estate documents have been used as a conduit to deliver the malware, with the files containing [Excel 4.0 macros](<https://thehackernews.com/2022/01/emotet-now-using-unconventional-ip.html>) designed to kick-start the infection process.\n\nRegardless of the method employed, the intrusions culminate in the execution of shellcode, which is used to retrieve a second-stage payload called Corelump from a remote server in the form of a JPEG image that also embeds a loader named Jumplump that, in turn, loads Corelump into memory.\n\nThe evasive implant comes with a wide range of capabilities, including keylogging, capturing screenshots, exfiltrating files, running a remote shell, and running arbitrary plugins downloaded from the remote server.\n\nAlso deployed during the attacks were bespoke utilities like Mex, a command-line tool to run open source security software like Chisel, and PassLib, a tool to dump credentials from web browsers, email clients, and the Windows credential manager.\n\nMicrosoft said it uncovered KNOTWEED actively serving malware since February 2020 through infrastructure hosted on DigitalOcean and Choopa, alongside identifying subdomains that are used for malware development, debugging Mex, and staging the Subzero payload.\n\nMultiple links have also been unearthed between DSIRF and the malicious tools used in KNOTWEED's attacks.\n\n\"These include command-and-control infrastructure used by the malware directly linking to DSIRF, a DSIRF-associated GitHub account being used in one attack, a code signing certificate issued to DSIRF being used to sign an exploit, and other open-source news reports attributing Subzero to DSIRF,\" Redmond noted.\n\nSubzero is no different from off-the-shelf malware such as [Pegasus](<https://thehackernews.com/2022/07/pegasus-spyware-used-to-hack-devices-of.html>), [Predator](<https://thehackernews.com/2022/05/cytroxs-predator-spyware-target-android.html>), [Hermit](<https://thehackernews.com/2022/06/google-says-isps-helped-attackers.html>), and [DevilsTongue](<https://thehackernews.com/2022/07/candiru-spyware-caught-exploiting.html>), which are capable of infiltrating phones and Windows machines to remotely control the devices and siphon off data, sometimes without requiring the user to click on a malicious link.\n\nIf anything, the latest findings highlight a burgeoning international market for such sophisticated surveillance technologies to carry out targeted attacks aimed at members of civil society.\n\nAlthough companies that sell commercial spyware advertise their wares as a means to tackle serious crimes, evidence gathered so far has found [several instances](<https://thehackernews.com/2022/06/nso-confirms-pegasus-spyware-used-by-at.html>) of these tools being misused by authoritarian governments and private organizations to snoop on human rights advocates, journalists, dissidents, and politicians.\n\nGoogle's Threat Analysis Group (TAG), which is tracking over 30 vendors that hawk exploits or surveillance capabilities to state-sponsored actors, said the booming ecosystem underscores \"the extent to which commercial surveillance vendors have proliferated capabilities historically only used by governments.\"\n\n\"These vendors operate with deep technical expertise to develop and operationalize exploits,\" TAG's Shane Huntley [said](<https://blog.google/threat-analysis-group/googles-efforts-to-identify-and-counter-spyware/>) in a testimony to the U.S. House Intelligence Committee on Wednesday, adding, \"its use is growing, fueled by demand from governments.\"\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2022-07-28T11:18:00", "type": "thn", "title": "Microsoft Uncovers Austrian Company Exploiting Windows and Adobe Zero-Day Exploits", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-36948", "CVE-2022-22047"], "modified": "2022-07-29T02:58:07", "id": "THN:DFA2CC41C78DFA4BED87B1410C21CE2A", "href": "https://thehackernews.com/2022/07/microsoft-uncover-austrian-company.html", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-09T12:37:59", "description": "[](<https://thehackernews.com/images/-Oinzu8T6SmI/YMBZ7WkhbJI/AAAAAAAACzI/kVA4Ura4Yl4MrNb_jPNPBtgjkBj1DSs1wCLcBGAsYHQ/s0/microsoft-windows-update.jpg>)\n\nMicrosoft on Tuesday released another round of [security updates](<https://msrc.microsoft.com/update-guide/releaseNote/2021-Jun>) for Windows operating system and other supported software, squashing 50 vulnerabilities, including six zero-days that are said to be under active attack.\n\nThe flaws were identified and resolved in Microsoft Windows, .NET Core and Visual Studio, Microsoft Office, Microsoft Edge (Chromium-based and EdgeHTML), SharePoint Server, Hyper-V, Visual Studio Code - Kubernetes Tools, Windows HTML Platform, and Windows Remote Desktop.\n\nOf these 50 bugs, five are rated Critical, and 45 are rated Important in severity, with three of the issues publicly known at the time of release. The vulnerabilities that being actively exploited are listed below -\n\n * [**CVE-2021-33742**](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742>) (CVSS score: 7.5) - Windows MSHTML Platform Remote Code Execution Vulnerability\n * [**CVE-2021-33739**](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33739>) (CVSS score: 8.4) - Microsoft DWM Core Library Elevation of Privilege Vulnerability\n * [**CVE-2021-31199**](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31199>) (CVSS score: 5.2) - Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability\n * [**CVE-2021-31201**](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31201>) (CVSS score: 5.2) - Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability\n * [**CVE-2021-31955**](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955>) (CVSS score: 5.5) - Windows Kernel Information Disclosure Vulnerability\n * [**CVE-2021-31956**](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31956>) (CVSS score: 7.8) - Windows NTFS Elevation of Privilege Vulnerability\n\nMicrosoft didn't disclose the nature of the attacks, how widespread they are, or the identities of the threat actors exploiting them. But the fact that four of the six flaws are privilege escalation vulnerabilities suggests that attackers could be leveraging them as part of an infection chain to gain elevated permissions on the targeted systems to execute malicious code or leak sensitive information.\n\nThe Windows maker also noted that both CVE-2021-31201 and CVE-2021-31199 address flaws related to [CVE-2021-28550](<https://thehackernews.com/2021/05/alert-hackers-exploit-adobe-reader-0.html>), an arbitrary code execution vulnerability rectified by Adobe last month that it said was being \"exploited in the wild in limited attacks targeting Adobe Reader users on Windows.\"\n\nGoogle's Threat Analysis Group, which has been acknowledged as having reported CVE-2021-33742 to Microsoft, [said](<https://twitter.com/ShaneHuntley/status/1402320072123719690>) \"this seem[s] to be a commercial exploit company providing capability for limited nation state Eastern Europe / Middle East targeting.\"\n\nRussian cybersecurity firm Kaspersky, for its part, detailed that CVE-2021-31955 and CVE-2021-31956 were abused in a Chrome zero-day exploit chain ([CVE-2021-21224](<https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html>)) in a series of highly targeted attacks against multiple companies on April 14 and 15. The intrusions were attributed to a new threat actor dubbed \"PuzzleMaker.\"\n\n\"While we were not able to retrieve the exploit used for remote code execution (RCE) in the Chrome web browser, we were able to find and analyze an elevation of privilege (EoP) exploit that was used to escape the sandbox and obtain system privileges,\" Kaspersky Lab researchers [said](<https://securelist.com/puzzlemaker-chrome-zero-day-exploit-chain/102771/>).\n\nElsewhere, Microsoft fixed numerous remote code execution vulnerabilities spanning Paint 3D, Microsoft SharePoint Server, Microsoft Outlook, Microsoft Office Graphics, Microsoft Intune Management Extension, Microsoft Excel, and Microsoft Defender, as well as several privilege escalation flaws in Microsoft Edge, Windows Filter Manager, Windows Kernel, Windows Kernel-Mode Driver, Windows NTLM Elevation, and Windows Print Spooler.\n\nTo install the latest security updates, Windows users can head to Start &gt; Settings &gt; Update &amp; Security &gt; Windows Update or by selecting Check for Windows updates.\n\n### Software Patches From Other Vendors\n\nAlongside Microsoft, a number of other vendors have also released a slew of patches on Tuesday, including \u2014\n\n * [Adobe](<https://helpx.adobe.com/security.html>)\n * [Android](<https://source.android.com/security/bulletin/2021-06-01>)\n * [Dell](<https://www.dell.com/support/security/>)\n * [Intel](<https://blogs.intel.com/technology/2021/06/intel-security-advisories-for-june-2021/>)\n * Linux distributions [SUSE](<https://lists.suse.com/pipermail/sle-security-updates/2021-June/thread.html>), [Oracle Linux](<https://linux.oracle.com/ords/f?p=105:21>), and [Red Hat](<https://access.redhat.com/security/security-updates/#/security-advisories?q=&p=2&sort=portal_publication_date%20desc&rows=10&portal_advisory_type=Security%20Advisory&documentKind=Errata>)\n * [SAP](<https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999>) (with cybersecurity firm Onapsis [credited](<https://onapsis.com/blog/sap-security-patch-day-june-2021-multiple-memory-corruption-vulnerabilities-can-lead-system>) with identifying 20 of the 40 remediated flaws)\n * [Schneider Electric](<https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp>), and\n * [Siemens](<https://new.siemens.com/global/en/products/services/cert.html#SecurityPublications>)\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-06-09T06:07:00", "type": "thn", "title": "Update Your Windows Computers to Patch 6 New In-the-Wild Zero-Day Bugs", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21224", "CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-33739", "CVE-2021-33742"], "modified": "2021-06-09T16:52:54", "id": "THN:1DDE95EA33D4D9F304973569FC787451", "href": "https://thehackernews.com/2021/06/update-your-windows-computers-to-patch.html", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "mmpc": [{"lastseen": "2022-07-27T17:42:56", "description": "The Microsoft Threat Intelligence Center (MSTIC) and the Microsoft Security Response Center (MSRC) found a private-sector offensive actor (PSOA) using multiple Windows and Adobe 0-day exploits, including one for the recently patched [CVE-2022-22047](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-22047>), in limited and targeted attacks against European and Central American customers. The PSOA, which MSTIC tracks as KNOTWEED, developed malware called Subzero which was used in these attacks.\n\nThis blog details Microsoft\u2019s analysis of the observed KNOTWEED activity and related malware used in targeted attacks against our customers. This information is shared with our customers and industry partners to improve detection of these attacks. Customers are encouraged to expedite deployment of the July 2022 Microsoft security updates to protect their systems against exploits using CVE-2022-22047. Microsoft Defender Antivirus and Microsoft Defender for Endpoint have also implemented detections against KNOTWEED\u2019s malware and tools.\n\nPSOAs, which [Microsoft also refers to as cyber mercenaries](<https://blogs.microsoft.com/on-the-issues/2022/07/27/private-sector-cyberweapons-psoas-knotweed/>), sell hacking tools or services through a variety of business models. Two common models for this type of actor are access-as-a-service and hack-for-hire. In access-as-a-service, the actor sells full end-to-end hacking tools that can be used by the purchaser in operations, with the PSOA not involved in any targeting or running of the operation. In hack-for-hire, detailed information is provided by the purchaser to the actor, who then runs the targeted operations. Based on observed attacks and news reports, MSTIC believes that KNOTWEED may blend these models: they sell the Subzero malware to third parties but have also been observed using KNOTWEED-associated infrastructure in some attacks, suggesting more direct involvement.\n\n## Who is KNOTWEED?\n\nKNOTWEED is an Austria-based PSOA named DSIRF. The [DSIRF website](<https://web.archive.org/web/20220713203741/https:/dsirf.eu/about/>) [web archive link] says they provide services_ \u201cto multinational corporations in the technology, retail, energy and financial sectors_\u201d and that they have \u201c_a set of highly sophisticated techniques in gathering and analyzing information._\u201d They publicly offer several services including \u201c_an enhanced due diligence and risk analysis process through providing a deep understanding of individuals and entities\u201d _and _\u201chighly sophisticated Red Teams to challenge your company&#x27;s most critical assets.\u201d_ \n \nHowever, [multiple](<https://www.intelligenceonline.com/surveillance--interception/2022/04/06/after-finfisher-s-demise-berlin-explores-cyber-tool-options,109766000-art>) [news](<https://www.focus.de/politik/vorab-aus-dem-focus-volle-kontrolle-ueber-zielcomputer-das-raetsel-um-die-spionage-app-fuehrt-ueber-wirecard-zu-putin_id_24442733.html>) [reports](<https://netzpolitik.org/2021/dsirf-wir-enthuellen-den-staatstrojaner-subzero-aus-oesterreich>) have linked DSIRF to the development and attempted sale of a malware toolset called Subzero. MSTIC found the Subzero malware being deployed through a variety of methods, including 0-day exploits in Windows and Adobe Reader, in 2021 and 2022. As part of our investigation into the utility of this malware, Microsoft\u2019s communications with a Subzero victim revealed that they had not commissioned any red teaming or penetration testing, and confirmed that it was unauthorized, malicious activity. Observed victims to date include law firms, banks, and strategic consultancies in countries such as Austria, the United Kingdom, and Panama. It\u2019s important to note that the identification of targets in a country doesn\u2019t necessarily mean that a DSIRF customer resides in the same country, as international targeting is common.\n\nMSTIC has found multiple links between DSIRF and the exploits and malware used in these attacks. These include command-and-control infrastructure used by the malware directly linking to DSIRF, a DSIRF-associated GitHub account being used in one attack, a code signing certificate issued to DSIRF being used to sign an exploit, and other open-source news reports attributing Subzero to DSIRF.\n\n## Observed actor activity\n\n### KNOTWEED initial access\n\nMSTIC found KNOTWEED\u2019s Subzero malware deployed in a variety of ways. In the succeeding sections, the different stages of Subzero are referred to by their Microsoft Defender detection names: _Jumplump _for the persistent loader and _Corelump _for the main malware.\n\n#### KNOTWEED exploits in 2022\n\nIn May 2022, MSTIC found an Adobe Reader remote code execution (RCE) and a 0-day Windows privilege escalation exploit chain being used in an attack that led to the deployment of Subzero. The exploits were packaged into a PDF document that was sent to the victim via email. Microsoft was not able to acquire the PDF or Adobe Reader RCE portion of the exploit chain, but the victim\u2019s Adobe Reader version was released in January 2022, meaning that the exploit used was either a 1-day exploit developed between January and May, or a 0-day exploit. Based on KNOTWEED\u2019s extensive use of other 0-days, we assess with medium confidence that the Adobe Reader RCE is a 0-day exploit. The Windows exploit was analyzed by MSRC, found to be a 0-day exploit, and then patched in July 2022 as CVE-2022-22047. Interestingly, there were indications in the Windows exploit code that it was also designed to be used from Chromium-based browsers, although we\u2019ve seen no evidence of browser-based attacks.\n\nThe CVE-2022-22047 vulnerability is related to an issue with [activation context](<https://docs.microsoft.com/windows/win32/sbscs/activation-contexts>) caching in the Client Server Run-Time Subsystem (CSRSS) on Windows. At a high level, the vulnerability could enable an attacker to provide a crafted assembly manifest, which would create a malicious activation context in the activation context cache, for an arbitrary process. This cached context is used the next time the process spawned.\n\nCVE-2022-22047 was used in KNOTWEED related attacks for privilege escalation. The vulnerability also provided the ability to escape sandboxes (with some caveats, as discussed below) and achieve system-level code execution. The exploit chain starts with writing a malicious DLL to disk from the sandboxed Adobe Reader renderer process. The CVE-2022-22047 exploit was then used to target a system process by providing an application manifest with an undocumented attribute that specified the path of the malicious DLL. Then, when the system process next spawned, the attribute in the malicious activation context was used, the malicious DLL was loaded from the given path, and system-level code execution was achieved.\n\nIt&#x27;s important to note that exploiting CVE-2022-22047 requires attackers to be able to write a DLL to disk. However, in the threat model of sandboxes, such as that of Adobe Reader and Chromium, the ability to write out files where the attacker _cannot_ control the path isn\u2019t considered dangerous. Hence, these sandboxes aren\u2019t a barrier to the exploitation of CVE-2022-22047.\n\n#### KNOTWEED exploits in 2021\n\nIn 2021, MSRC received a report of two Windows privilege escalation exploits ([CVE-2021-31199](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31199>) and [CVE-2021-31201](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31201>)) being used in conjunction with an Adobe Reader exploit ([CVE-2021-28550](<https://helpx.adobe.com/security/products/acrobat/apsb21-29.html>)), all of which were patched in June 2021. MSTIC was able to confirm the use of these in an exploit chain used to deploy Subzero.\n\nWe were later able to link the deployment of Subzero to a fourth exploit, one related to a Windows privilege escalation vulnerability in the Windows Update Medic Service ([CVE-2021-36948](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36948>)), which allowed an attacker to force the service to load an arbitrary signed DLL. The malicious DLL used in the attacks was signed by \u2018DSIRF GmbH\u2019.\n\nFigure 1. Valid digital signature from DSIRF on Medic Service exploit DLL\n\n#### Malicious Excel documents\n\nIn addition to the exploit chains, another method of access that led to the deployment of Subzero was an Excel file masquerading as a real estate document. The file contained a malicious macro that was obfuscated with large chunks of benign comments from the Kama Sutra, string obfuscation, and use of Excel 4.0 macros.\n\n Figure 2: Two examples of KNOTWEED Excel macro obfuscation\n\nAfter de-obfuscating strings at runtime, the VBA macro uses the _ExecuteExcel4Macro_ function to call native Win32 functions to load shellcode into memory allocated using _VirtualAlloc_. Each opcode is individually copied into a newly allocated buffer using _memset_ before _CreateThread_ is called to execute the shellcode.\n\nFigure 3: Copying opcodes Figure 4: Calling CreateThread on shellcode\n\nThe following section describes the shellcode executed by the macro.\n\n### KNOTWEED malware and tactics, techniques, and procedures (TTPs)\n\n#### Corelump downloader and loader shellcode\n\nThe downloader shellcode is the initial shellcode executed from either the exploit chains or malicious Excel documents. The shellcode&#x27;s purpose is to retrieve the _Corelump_ second-stage malware from the actor\u2019s command-and-control (C2) server. The downloader shellcode downloads a JPEG image that contains extra encrypted data appended to the end of the file (past the _0xFF 0xD9_ marker that signifies the end of a JPEG file). The JPEG is then written to the user\u2019s _%TEMP%_ directory.\n\nFigure 5: One of the images embedded with the loader shellcode and Corelump\n\nThe downloader shellcode searches for a 16-byte marker immediately following the end of JPEG. After finding the marker, the downloader shellcode RC4 decrypts the loader shellcode using the next 16 bytes as the RC4 key. Finally, the loader shellcode RC4 decrypts the _Corelump_ malware using a second RC4 key and manually loads it into memory.\n\n#### Corelump malware\n\n_Corelump _is the main payload and resides exclusively in memory to evade detection. It contains a variety of capabilities including keylogging, capturing screenshots, exfiltrating files, running a remote shell, and running arbitrary plugins downloaded from KNOTWEED\u2019s C2 server.\n\nAs part of installation, _Corelump_ makes copies of legitimate Windows DLLs and overwrites sections of them with malicious code. As part of this process, _Corelump_ also modifies the fields in the PE header to accommodate the nefarious changes, such as adding new exported functions, disabling [Control Flow Guard](<https://docs.microsoft.com/en-us/windows/win32/secbp/control-flow-guard>), and modifying the image file checksum with a computed value from _CheckSumMappedFile._ These trojanized binaries (_Jumplump_) are dropped to disk in _C:\\Windows\\System32\\spool\\drivers\\color\\_, and COM registry keys are modified for persistence (see the Behaviors section for more information on COM hijacking).\n\n#### Jumplump loader\n\n_Jumplump _is responsible for loading _Corelump _into memory from the JPEG file in the %TEMP% directory. If _Corelump_ is not present, _Jumplump_ attempts to download it again from the C2 server. Both_ Jumplump _and the downloader shellcode are heavily obfuscated to make analysis difficult, with most instructions being followed by a jmp to another instruction/jmp combination, giving a convoluted control flow throughout the program.\n\nFigure 6: Disassembly showing the jmp/instruction obfuscation used in Jumplump\n\n#### Mex and PassLib\n\nKNOTWEED was also observed using the bespoke utility tools Mex and PassLib. These tools are developed by KNOTWEED and bear capabilities that are derived from publicly available sources. Mex, for example, is a command-line tool containing several red teaming or security plugins copied from GitHub (listed below):\n\n[Chisel](<https://github.com/jpillora/chisel>)| [mimikatz](<https://github.com/ParrotSec/mimikatz>)| [SharpHound3](<https://github.com/BloodHoundAD/SharpHound3>) \n---|---|--- \n[Curl](<https://github.com/curl/curl>)| [Ping Castle](<https://github.com/vletoux/pingcastle>)| [SharpOxidResolver](<https://github.com/S3cur3Th1sSh1t/SharpOxidResolver>) \n[Grouper2](<https://github.com/l0ss/Grouper2>)| [Rubeus](<https://github.com/GhostPack/Rubeus>)| [PharpPrinter](<https://github.com/rvrsh3ll/SharpPrinter>) \n[Internal Monologue](<https://github.com/eladshamir/Internal-Monologue>)| [SCShell](<https://github.com/Mr-Un1k0d3r/SCShell>)| [SpoolSample](<https://github.com/leechristensen/SpoolSample>) \n[Inveigh](<https://github.com/Kevin-Robertson/Inveigh>)| [Seatbelt](<https://github.com/GhostPack/Seatbelt>)| [StandIn](<https://github.com/FuzzySecurity/StandIn>) \n[Lockless](<https://github.com/GhostPack/Lockless>)| [SharpExec](<https://github.com/anthemtotheego/SharpExec>)| \n \nPassLib is a custom password stealer tool capable of dumping credentials from a variety of sources including web browsers, email clients, LSASS, LSA secrets, and the Windows credential manager.\n\n#### Post-compromise actions\n\nIn victims where KNOTWEED malware had been used, a variety of post-compromise actions were observed:\n\n * Setting of _UseLogonCredential _to \u201c1\u201d to enable plaintext credentials:\n * _reg add HKLM\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\WDigest /v UseLogonCredential /t REG_DWORD /d 1 /f_\n * Credential dumping via _comsvcs.dll_:\n * _rundll32.exe C:\\Windows\\System32\\comsvcs.dll, MiniDump_\n * Attempt to access emails with dumped credentials from a KNOTWEED IP address\n * Using Curl to download KNOTWEED tooling from public file shares such as _vultrobjects[.]com_\n * Running PowerShell scripts directly from a GitHub gist created by an account associated with DSIRF\n\n### KNOTWEED infrastructure connections to DSIRF\n\nPivoting off a known command-and-control domain identified by MSTIC, _acrobatrelay[.]com_, RiskIQ expanded the view of KNOTWEED&#x27;s attack infrastructure. Leveraging unique patterns in the use of SSL certificates and other network fingerprints specific to the group and associated with that domain, RiskIQ identified a host of additional IP addresses under the control of KNOTWEED. This infrastructure, largely hosted by Digital Ocean and Choopa, has been actively serving malware since at least February of 2020 and continues through the time of this writing.\n\nRiskIQ next utilized passive DNS data to determine which domains those IPs resolved to at the time they were malicious. This process yielded several domains with direct links to DSIRF, including _demo3[.]dsirf[.]eu_ (the company&#x27;s own website), and several subdomains that appear to have been used for malware development, including _debugmex[.]dsirflabs[.]eu_ (likely a server used for debugging malware with the bespoke utility tool Mex) and _szstaging[.]dsirflabs[.]eu_ (likely a server used to stage Subzero malware).\n\n## Detection and prevention\n\nMicrosoft will continue to monitor KNOTWEED activity and implement protections for our customers. The current detections and IOCs detailed below are in place and protecting Microsoft customers across our security products. Additional advanced hunting queries are also provided below to help organizations extend their protections and investigations of these attacks.\n\n### Behaviors\n\n_Corelump _drops the_ Jumplump_ loader DLLs to _C:\\Windows\\System32\\spool\\drivers\\color\\\\. _This is a common directory used by malware as well as some legitimate programs, so writes of PE files to the folder should be monitored.\n\n_Jumplump_ uses COM hijacking for persistence, modifying COM registry keys to point to the _Jumplump_ DLL in _C:\\Windows\\System32\\spool\\drivers\\color\\_. Modifications of default system CLSID values should be monitored to detect this technique (e.g., _HKLM\\SOFTWARE\\Classes\\CLSID\\\\{GUID}\\InProcServer32 Default_ value). The five CLSIDs used by _Jumplump_ are listed below with their original clean values on Windows 11:\n\n * {ddc05a5a-351a-4e06-8eaf-54ec1bc2dcea} = &quot;_%SystemRoot%\\System32\\ApplicationFrame.dll_&quot;\n * {1f486a52-3cb1-48fd-8f50-b8dc300d9f9d} = &quot;_%SystemRoot%\\system32\\propsys.dll_&quot;\n * {4590f811-1d3a-11d0-891f-00aa004b2e24} = &quot;_%SystemRoot%\\system32\\wbem\\wbemprox.dll_&quot;\n * {4de225bf-cf59-4cfc-85f7-68b90f185355} = &quot;_%SystemRoot%\\system32\\wbem\\wmiprvsd.dll_&quot;\n * {F56F6FDD-AA9D-4618-A949-C1B91AF43B1A} = &quot;_%SystemRoot%\\System32\\Actioncenter.dll_&quot;\n\nMany of the post-compromise actions can be detected based on their command lines. Customers should monitor for possible malicious activity such as PowerShell executing scripts from internet locations, modification of commonly abused registry keys such as _HKLM\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\WDigest, _and LSASS credential dumping via minidumps.\n\n## Recommended customer actions\n\nThe techniques used by the actor and described in the Observed actor activity section can be mitigated by adopting the security considerations provided below:\n\n * All customers should prioritize patching of [CVE-2022-22047](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-22047>).\n * Confirm that Microsoft Defender Antivirus is updated to security intelligence update **1.371.503.0** or later to detect the related indicators.\n * Use the included indicators of compromise to investigate whether they exist in your environment and assess for potential intrusion.\n * [Change Excel macro security settings](<https://support.microsoft.com/office/change-macro-security-settings-in-excel-a97c09d2-c082-46b8-b19f-e8621e8fe373>) to control which macros run and under what circumstances when you open a workbook. Customers can also [stop malicious XLM or VBA macros](<https://www.microsoft.com/security/blog/2021/03/03/xlm-amsi-new-runtime-defense-against-excel-4-0-macro-malware/>) by ensuring runtime macro scanning by Antimalware Scan Interface ([AMSI](<https://docs.microsoft.com/windows/win32/amsi/antimalware-scan-interface-portal>)) is on. This feature\u2014enabled by default\u2014is on if the Group Policy setting for Macro Run Time Scan Scope is set to \u201cEnable for All Files\u201d or \u201cEnable for Low Trust Files\u201d.\n * Enable multifactor authentication (MFA) to mitigate potentially compromised credentials and ensure that MFA is enforced for all remote connectivity. _Note:_ Microsoft strongly encourages all customers download and use password-less solutions like [Microsoft Authenticator](<https://www.microsoft.com/account/authenticator/>) to secure accounts.\n * Review all authentication activity for remote access infrastructure, with a particular focus on accounts configured with single factor authentication, to confirm authenticity and investigate any anomalous activity.\n\n## Indicators of compromise (IOCs)\n\nThe following list provides IOCs observed during our investigation. We encourage our customers to investigate these indicators in their environments and implement detections and protections to identify past related activity and prevent future attacks against their systems. All sample hashes are available in VirusTotal.\n\nIndicator| Type| Description \n---|---|--- \n78c255a98003a101fa5ba3f49c50c6922b52ede601edac5db036ab72efc57629| SHA-256| Malicious Excel document and VBA \n0588f61dc7e4b24554cffe4ea56d043d8f6139d2569bc180d4a77cf75b68792f| SHA-256| Malicious Excel document and VBA \n441a3810b9e89bae12eea285a63f92e98181e9fb9efd6c57ef6d265435484964| SHA-256| Jumplump malware \ncbae79f66f724e0fe1705d6b5db3cc8a4e89f6bdf4c37004aa1d45eeab26e84b| SHA-256| Jumplump malware \nfd6515a71530b8329e2c0104d0866c5c6f87546d4b44cc17bbb03e64663b11fc| SHA-256| Jumplump malware \n5d169e083faa73f2920c8593fb95f599dad93d34a6aa2b0f794be978e44c8206| SHA-256| Jumplump malware \n7f29b69eb1af1cc6c1998bad980640bfe779525fd5bb775bc36a0ce3789a8bfc| SHA-256| Jumplump malware \n02a59fe2c94151a08d75a692b550e66a8738eb47f0001234c600b562bf8c227d| SHA-256| Jumplump malware \n7f84bf6a016ca15e654fb5ebc36fd7407cb32c69a0335a32bfc36cb91e36184d| SHA-256| Jumplump malware \nafab2e77dc14831f1719e746042063a8ec107de0e9730249d5681d07f598e5ec| SHA-256| Jumplump malware \n894138dfeee756e366c65a197b4dbef8816406bc32697fac6621601debe17d53| SHA-256| Jumplump malware \n4611340fdade4e36f074f75294194b64dcf2ec0db00f3d958956b4b0d6586431| SHA-256| Jumplump malware \nc96ae21b4cf2e28eec222cfe6ca903c4767a068630a73eca58424f9a975c6b7d| SHA-256| Corelump malware \nfa30be45c5c5a8f679b42ae85410f6099f66fe2b38eb7aa460bcc022babb41ca| SHA-256| Mex tool \ne64bea4032cf2694e85ede1745811e7585d3580821a00ae1b9123bb3d2d442d6| SHA-256| Passlib tool \nacrobatrelay[.]com__| Domain| C2 \nfinconsult[.]cc| Domain| C2 \nrealmetaldns[.]com| Domain| C2 \n \n**NOTE:** These indicators should not be considered exhaustive for this observed activity.\n\n## Detections\n\n### Microsoft Defender Antivirus\n\nMicrosoft Defender Antivirus detects the malware tools and implants used by KNOTWEED starting with signature build **1.371.503.0** as the following family names:\n\n * _Backdoor:O97M/JumplumpDropper_\n * _Trojan:Win32/Jumplump_\n * _Trojan:Win32/Corelump_\n * _HackTool:Win32/Mexlib_\n * _Trojan:Win32/Medcerc_\n * _Behavior:Win32/SuspModuleLoad_\n\n### Microsoft Defender for Endpoint\n\nMicrosoft Defender for Endpoint customers may see the following alerts as an indication of a possible attack. These alerts are not necessarily an indication of KNOTWEED compromise:\n\n * _COM Hijacking _- Detects multiple behaviors, including _JumpLump_ malware persistence techniques.\n * _Possible privilege escalation using CTF module _- Detects a possible privilege escalation behavior associated with CVE-2022-2204; also detects an attempt to perform local privilege escalation by launching an elevated process and loading an untrusted module to perform malicious activities\n * _KNOTWEED actor activity detected _- Detects KNOTWEED actor activities\n * _WDigest configuration change _- Detects potential retrieval of clear text password from changes to _UseLogonCredential_ registry key\n * _Sensitive credential memory read _- Detects LSASS credential dumping via minidumps\n * _Suspicious Curl behavior _- Detects the use of Curl to download KNOTWEED tooling from public file shares\n * _Suspicious screen capture activity_ - Detects _Corelump_ behavior of capturing screenshots of the compromised system\n\n## Hunting queries\n\n### Microsoft Sentinel\n\nThe following resources are available to Microsoft Sentinel customers to identify the activity outlined in the blog post.\n\n**Microsoft Defender Antivirus detections related to KNOTWEED**\n\nThis query identifies occurrences of Microsoft Defender Antivirus detections listed in this blog post:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/KNOTWEEDAVDetection.yaml>\n\n**File hash IOCs related to KNOTWEED**\n\nThis query identifies matches based on file hash IOCs related to KNOTWEED across a range of common Microsoft Sentinel data sets:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/KNOTWEEDFileHashesJuly2022.yaml>\n\n**Domain IOCs related to KNOTWEED**\n\nThis query identifies matches based on domain IOCs related to KNOTWEED across a range of common Microsoft Sentinel data sets:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/KNOTWEEDC2DomainsJuly2022.yaml>\n\n**COM registry key modified to point to Color Profile folder**\n\nThis query identifies modifications to COM registry keys to point to executable files in _C:\\Windows\\System32\\spool\\drivers\\color\\_:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/COMRegistryKeyModifiedtoPointtoFileinColorDrivers.yaml>\n\n**PE file dropped in Color Profile folder**\n\nThis query looks for PE files being created in the _C:\\Windows\\System32\\spool\\drivers\\color\\_ folder:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/DeviceFileEvents/PEfiledroppedinColorDriversFolder.yaml>\n\n**Abnormally large JPEG downloaded from new source**\n\nThis query looks for downloads of JPEG files from remote sources, where the file size is abnormally large, and not from a common source:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/CommonSecurityLog/AbnormallyLargeJPEGFiledDownloadedfromNewSource.yaml>\n\n**Downloading new file using Curl**\n\nThis query looks for new files being downloaded using Curl.\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/MultipleDataSources/DownloadofNewFileUsingCurl.yaml>\n\n**Suspected ****credential dumping**\n\nThis query looks for attackers using comsvcs.dll to dump credentials from memory\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/SecurityEvent/SuspectedLSASSDump.yaml>\n\n**Downgrade to ****plaintext credentials**\n\nThis query looks for registry key being set to enabled plain text credentials\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/SecurityEvent/WDigestDowngradeAttack.yaml>\n\n### Microsoft 365 Defender advanced hunting\n\nMicrosoft 365 Defender customers can run the following advanced hunting queries to locate IOCs and related malicious activity in their environments.\n\n**Microsoft Defender Antivirus detections related to KNOTWEED**\n\nThis query identifies detection of related malware and tools by Microsoft Defender Antivirus:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-AVDetections.yaml>\n\n**File hash IOCs related to KNOTWEED**\n\nThis query surfaces KNOTWEED file hash IOCs across Microsoft Defender for Endpoint tables:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-FileHashIOCsJuly2022.yaml>\n\n**Domain IOCs related to KNOTWEED**\n\nThis query identifies matches based on domain IOCs related to KNOTWEED against Microsoft Defender for Endpoint device network connections:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-DomainIOCsJuly2022.yaml>\n\n**COM registry key modified to point to Color Profile folder**\n\nThis query identifies modifications to COM registry keys to point to executable files in _C:\\Windows\\System32\\spool\\drivers\\color\\_:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-COMRegistryKeyModifiedtoPointtoColorProfileFolder.yaml>\n\n**PE file dropped in Color Profile folder**\n\nThis query looks for PE files being created in the _C:\\Windows\\System32\\spool\\drivers\\color\\ folder_:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-PEFileDroppedinColorProfileFolder.yaml>\n\n**Downloading new file using Curl**\n\nThis query looks for new files being downloaded using Curl.\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-DownloadingnewfileusingCurl.yaml>\n\nThe post [Untangling KNOTWEED: European private-sector offensive actor using 0-day exploits](<https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/>) appeared first on [Microsoft Security Blog](<https://www.microsoft.com/security/blog>).", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2022-07-27T14:00:00", "type": "mmpc", "title": "Untangling KNOTWEED: European private-sector offensive actor using 0-day exploits", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-36948", "CVE-2022-2204", "CVE-2022-22047"], "modified": "2022-07-27T14:00:00", "id": "MMPC:85647D37E79AFEF2BFF74B4682648C5E", "href": "https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "mssecure": [{"lastseen": "2022-07-27T17:46:22", "description": "The Microsoft Threat Intelligence Center (MSTIC) and the Microsoft Security Response Center (MSRC) found a private-sector offensive actor (PSOA) using multiple Windows and Adobe 0-day exploits, including one for the recently patched [CVE-2022-22047](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-22047>), in limited and targeted attacks against European and Central American customers. The PSOA, which MSTIC tracks as KNOTWEED, developed malware called Subzero which was used in these attacks.\n\nThis blog details Microsoft\u2019s analysis of the observed KNOTWEED activity and related malware used in targeted attacks against our customers. This information is shared with our customers and industry partners to improve detection of these attacks. Customers are encouraged to expedite deployment of the July 2022 Microsoft security updates to protect their systems against exploits using CVE-2022-22047. Microsoft Defender Antivirus and Microsoft Defender for Endpoint have also implemented detections against KNOTWEED\u2019s malware and tools.\n\nPSOAs, which [Microsoft also refers to as cyber mercenaries](<https://blogs.microsoft.com/on-the-issues/2022/07/27/private-sector-cyberweapons-psoas-knotweed/>), sell hacking tools or services through a variety of business models. Two common models for this type of actor are access-as-a-service and hack-for-hire. In access-as-a-service, the actor sells full end-to-end hacking tools that can be used by the purchaser in operations, with the PSOA not involved in any targeting or running of the operation. In hack-for-hire, detailed information is provided by the purchaser to the actor, who then runs the targeted operations. Based on observed attacks and news reports, MSTIC believes that KNOTWEED may blend these models: they sell the Subzero malware to third parties but have also been observed using KNOTWEED-associated infrastructure in some attacks, suggesting more direct involvement.\n\n## Who is KNOTWEED?\n\nKNOTWEED is an Austria-based PSOA named DSIRF. The [DSIRF website](<https://web.archive.org/web/20220713203741/https:/dsirf.eu/about/>) [web archive link] says they provide services_ \u201cto multinational corporations in the technology, retail, energy and financial sectors_\u201d and that they have \u201c_a set of highly sophisticated techniques in gathering and analyzing information._\u201d They publicly offer several services including \u201c_an enhanced due diligence and risk analysis process through providing a deep understanding of individuals and entities\u201d _and _\u201chighly sophisticated Red Teams to challenge your company&#x27;s most critical assets.\u201d_ \n \nHowever, [multiple](<https://www.intelligenceonline.com/surveillance--interception/2022/04/06/after-finfisher-s-demise-berlin-explores-cyber-tool-options,109766000-art>) [news](<https://www.focus.de/politik/vorab-aus-dem-focus-volle-kontrolle-ueber-zielcomputer-das-raetsel-um-die-spionage-app-fuehrt-ueber-wirecard-zu-putin_id_24442733.html>) [reports](<https://netzpolitik.org/2021/dsirf-wir-enthuellen-den-staatstrojaner-subzero-aus-oesterreich>) have linked DSIRF to the development and attempted sale of a malware toolset called Subzero. MSTIC found the Subzero malware being deployed through a variety of methods, including 0-day exploits in Windows and Adobe Reader, in 2021 and 2022. As part of our investigation into the utility of this malware, Microsoft\u2019s communications with a Subzero victim revealed that they had not commissioned any red teaming or penetration testing, and confirmed that it was unauthorized, malicious activity. Observed victims to date include law firms, banks, and strategic consultancies in countries such as Austria, the United Kingdom, and Panama. It\u2019s important to note that the identification of targets in a country doesn\u2019t necessarily mean that a DSIRF customer resides in the same country, as international targeting is common.\n\nMSTIC has found multiple links between DSIRF and the exploits and malware used in these attacks. These include command-and-control infrastructure used by the malware directly linking to DSIRF, a DSIRF-associated GitHub account being used in one attack, a code signing certificate issued to DSIRF being used to sign an exploit, and other open-source news reports attributing Subzero to DSIRF.\n\n## Observed actor activity\n\n### KNOTWEED initial access\n\nMSTIC found KNOTWEED\u2019s Subzero malware deployed in a variety of ways. In the succeeding sections, the different stages of Subzero are referred to by their Microsoft Defender detection names: _Jumplump _for the persistent loader and _Corelump _for the main malware.\n\n#### KNOTWEED exploits in 2022\n\nIn May 2022, MSTIC found an Adobe Reader remote code execution (RCE) and a 0-day Windows privilege escalation exploit chain being used in an attack that led to the deployment of Subzero. The exploits were packaged into a PDF document that was sent to the victim via email. Microsoft was not able to acquire the PDF or Adobe Reader RCE portion of the exploit chain, but the victim\u2019s Adobe Reader version was released in January 2022, meaning that the exploit used was either a 1-day exploit developed between January and May, or a 0-day exploit. Based on KNOTWEED\u2019s extensive use of other 0-days, we assess with medium confidence that the Adobe Reader RCE is a 0-day exploit. The Windows exploit was analyzed by MSRC, found to be a 0-day exploit, and then patched in July 2022 as CVE-2022-22047. Interestingly, there were indications in the Windows exploit code that it was also designed to be used from Chromium-based browsers, although we\u2019ve seen no evidence of browser-based attacks.\n\nThe CVE-2022-22047 vulnerability is related to an issue with [activation context](<https://docs.microsoft.com/windows/win32/sbscs/activation-contexts>) caching in the Client Server Run-Time Subsystem (CSRSS) on Windows. At a high level, the vulnerability could enable an attacker to provide a crafted assembly manifest, which would create a malicious activation context in the activation context cache, for an arbitrary process. This cached context is used the next time the process spawned.\n\nCVE-2022-22047 was used in KNOTWEED related attacks for privilege escalation. The vulnerability also provided the ability to escape sandboxes (with some caveats, as discussed below) and achieve system-level code execution. The exploit chain starts with writing a malicious DLL to disk from the sandboxed Adobe Reader renderer process. The CVE-2022-22047 exploit was then used to target a system process by providing an application manifest with an undocumented attribute that specified the path of the malicious DLL. Then, when the system process next spawned, the attribute in the malicious activation context was used, the malicious DLL was loaded from the given path, and system-level code execution was achieved.\n\nIt&#x27;s important to note that exploiting CVE-2022-22047 requires attackers to be able to write a DLL to disk. However, in the threat model of sandboxes, such as that of Adobe Reader and Chromium, the ability to write out files where the attacker _cannot_ control the path isn\u2019t considered dangerous. Hence, these sandboxes aren\u2019t a barrier to the exploitation of CVE-2022-22047.\n\n#### KNOTWEED exploits in 2021\n\nIn 2021, MSRC received a report of two Windows privilege escalation exploits ([CVE-2021-31199](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31199>) and [CVE-2021-31201](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31201>)) being used in conjunction with an Adobe Reader exploit ([CVE-2021-28550](<https://helpx.adobe.com/security/products/acrobat/apsb21-29.html>)), all of which were patched in June 2021. MSTIC was able to confirm the use of these in an exploit chain used to deploy Subzero.\n\nWe were later able to link the deployment of Subzero to a fourth exploit, one related to a Windows privilege escalation vulnerability in the Windows Update Medic Service ([CVE-2021-36948](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36948>)), which allowed an attacker to force the service to load an arbitrary signed DLL. The malicious DLL used in the attacks was signed by \u2018DSIRF GmbH\u2019.\n\nFigure 1. Valid digital signature from DSIRF on Medic Service exploit DLL\n\n#### Malicious Excel documents\n\nIn addition to the exploit chains, another method of access that led to the deployment of Subzero was an Excel file masquerading as a real estate document. The file contained a malicious macro that was obfuscated with large chunks of benign comments from the Kama Sutra, string obfuscation, and use of Excel 4.0 macros.\n\n Figure 2: Two examples of KNOTWEED Excel macro obfuscation\n\nAfter de-obfuscating strings at runtime, the VBA macro uses the _ExecuteExcel4Macro_ function to call native Win32 functions to load shellcode into memory allocated using _VirtualAlloc_. Each opcode is individually copied into a newly allocated buffer using _memset_ before _CreateThread_ is called to execute the shellcode.\n\nFigure 3: Copying opcodes Figure 4: Calling CreateThread on shellcode\n\nThe following section describes the shellcode executed by the macro.\n\n### KNOTWEED malware and tactics, techniques, and procedures (TTPs)\n\n#### Corelump downloader and loader shellcode\n\nThe downloader shellcode is the initial shellcode executed from either the exploit chains or malicious Excel documents. The shellcode&#x27;s purpose is to retrieve the _Corelump_ second-stage malware from the actor\u2019s command-and-control (C2) server. The downloader shellcode downloads a JPEG image that contains extra encrypted data appended to the end of the file (past the _0xFF 0xD9_ marker that signifies the end of a JPEG file). The JPEG is then written to the user\u2019s _%TEMP%_ directory.\n\nFigure 5: One of the images embedded with the loader shellcode and Corelump\n\nThe downloader shellcode searches for a 16-byte marker immediately following the end of JPEG. After finding the marker, the downloader shellcode RC4 decrypts the loader shellcode using the next 16 bytes as the RC4 key. Finally, the loader shellcode RC4 decrypts the _Corelump_ malware using a second RC4 key and manually loads it into memory.\n\n#### Corelump malware\n\n_Corelump _is the main payload and resides exclusively in memory to evade detection. It contains a variety of capabilities including keylogging, capturing screenshots, exfiltrating files, running a remote shell, and running arbitrary plugins downloaded from KNOTWEED\u2019s C2 server.\n\nAs part of installation, _Corelump_ makes copies of legitimate Windows DLLs and overwrites sections of them with malicious code. As part of this process, _Corelump_ also modifies the fields in the PE header to accommodate the nefarious changes, such as adding new exported functions, disabling [Control Flow Guard](<https://docs.microsoft.com/en-us/windows/win32/secbp/control-flow-guard>), and modifying the image file checksum with a computed value from _CheckSumMappedFile._ These trojanized binaries (_Jumplump_) are dropped to disk in _C:\\Windows\\System32\\spool\\drivers\\color\\_, and COM registry keys are modified for persistence (see the Behaviors section for more information on COM hijacking).\n\n#### Jumplump loader\n\n_Jumplump _is responsible for loading _Corelump _into memory from the JPEG file in the %TEMP% directory. If _Corelump_ is not present, _Jumplump_ attempts to download it again from the C2 server. Both_ Jumplump _and the downloader shellcode are heavily obfuscated to make analysis difficult, with most instructions being followed by a jmp to another instruction/jmp combination, giving a convoluted control flow throughout the program.\n\nFigure 6: Disassembly showing the jmp/instruction obfuscation used in Jumplump\n\n#### Mex and PassLib\n\nKNOTWEED was also observed using the bespoke utility tools Mex and PassLib. These tools are developed by KNOTWEED and bear capabilities that are derived from publicly available sources. Mex, for example, is a command-line tool containing several red teaming or security plugins copied from GitHub (listed below):\n\n[Chisel](<https://github.com/jpillora/chisel>)| [mimikatz](<https://github.com/ParrotSec/mimikatz>)| [SharpHound3](<https://github.com/BloodHoundAD/SharpHound3>) \n---|---|--- \n[Curl](<https://github.com/curl/curl>)| [Ping Castle](<https://github.com/vletoux/pingcastle>)| [SharpOxidResolver](<https://github.com/S3cur3Th1sSh1t/SharpOxidResolver>) \n[Grouper2](<https://github.com/l0ss/Grouper2>)| [Rubeus](<https://github.com/GhostPack/Rubeus>)| [PharpPrinter](<https://github.com/rvrsh3ll/SharpPrinter>) \n[Internal Monologue](<https://github.com/eladshamir/Internal-Monologue>)| [SCShell](<https://github.com/Mr-Un1k0d3r/SCShell>)| [SpoolSample](<https://github.com/leechristensen/SpoolSample>) \n[Inveigh](<https://github.com/Kevin-Robertson/Inveigh>)| [Seatbelt](<https://github.com/GhostPack/Seatbelt>)| [StandIn](<https://github.com/FuzzySecurity/StandIn>) \n[Lockless](<https://github.com/GhostPack/Lockless>)| [SharpExec](<https://github.com/anthemtotheego/SharpExec>)| \n \nPassLib is a custom password stealer tool capable of dumping credentials from a variety of sources including web browsers, email clients, LSASS, LSA secrets, and the Windows credential manager.\n\n#### Post-compromise actions\n\nIn victims where KNOTWEED malware had been used, a variety of post-compromise actions were observed:\n\n * Setting of _UseLogonCredential _to \u201c1\u201d to enable plaintext credentials:\n * _reg add HKLM\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\WDigest /v UseLogonCredential /t REG_DWORD /d 1 /f_\n * Credential dumping via _comsvcs.dll_:\n * _rundll32.exe C:\\Windows\\System32\\comsvcs.dll, MiniDump_\n * Attempt to access emails with dumped credentials from a KNOTWEED IP address\n * Using Curl to download KNOTWEED tooling from public file shares such as _vultrobjects[.]com_\n * Running PowerShell scripts directly from a GitHub gist created by an account associated with DSIRF\n\n### KNOTWEED infrastructure connections to DSIRF\n\nPivoting off a known command-and-control domain identified by MSTIC, _acrobatrelay[.]com_, RiskIQ expanded the view of KNOTWEED&#x27;s attack infrastructure. Leveraging unique patterns in the use of SSL certificates and other network fingerprints specific to the group and associated with that domain, RiskIQ identified a host of additional IP addresses under the control of KNOTWEED. This infrastructure, largely hosted by Digital Ocean and Choopa, has been actively serving malware since at least February of 2020 and continues through the time of this writing.\n\nRiskIQ next utilized passive DNS data to determine which domains those IPs resolved to at the time they were malicious. This process yielded several domains with direct links to DSIRF, including _demo3[.]dsirf[.]eu_ (the company&#x27;s own website), and several subdomains that appear to have been used for malware development, including _debugmex[.]dsirflabs[.]eu_ (likely a server used for debugging malware with the bespoke utility tool Mex) and _szstaging[.]dsirflabs[.]eu_ (likely a server used to stage Subzero malware).\n\n## Detection and prevention\n\nMicrosoft will continue to monitor KNOTWEED activity and implement protections for our customers. The current detections and IOCs detailed below are in place and protecting Microsoft customers across our security products. Additional advanced hunting queries are also provided below to help organizations extend their protections and investigations of these attacks.\n\n### Behaviors\n\n_Corelump _drops the_ Jumplump_ loader DLLs to _C:\\Windows\\System32\\spool\\drivers\\color\\\\. _This is a common directory used by malware as well as some legitimate programs, so writes of PE files to the folder should be monitored.\n\n_Jumplump_ uses COM hijacking for persistence, modifying COM registry keys to point to the _Jumplump_ DLL in _C:\\Windows\\System32\\spool\\drivers\\color\\_. Modifications of default system CLSID values should be monitored to detect this technique (e.g., _HKLM\\SOFTWARE\\Classes\\CLSID\\\\{GUID}\\InProcServer32 Default_ value). The five CLSIDs used by _Jumplump_ are listed below with their original clean values on Windows 11:\n\n * {ddc05a5a-351a-4e06-8eaf-54ec1bc2dcea} = &quot;_%SystemRoot%\\System32\\ApplicationFrame.dll_&quot;\n * {1f486a52-3cb1-48fd-8f50-b8dc300d9f9d} = &quot;_%SystemRoot%\\system32\\propsys.dll_&quot;\n * {4590f811-1d3a-11d0-891f-00aa004b2e24} = &quot;_%SystemRoot%\\system32\\wbem\\wbemprox.dll_&quot;\n * {4de225bf-cf59-4cfc-85f7-68b90f185355} = &quot;_%SystemRoot%\\system32\\wbem\\wmiprvsd.dll_&quot;\n * {F56F6FDD-AA9D-4618-A949-C1B91AF43B1A} = &quot;_%SystemRoot%\\System32\\Actioncenter.dll_&quot;\n\nMany of the post-compromise actions can be detected based on their command lines. Customers should monitor for possible malicious activity such as PowerShell executing scripts from internet locations, modification of commonly abused registry keys such as _HKLM\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\WDigest, _and LSASS credential dumping via minidumps.\n\n## Recommended customer actions\n\nThe techniques used by the actor and described in the Observed actor activity section can be mitigated by adopting the security considerations provided below:\n\n * All customers should prioritize patching of [CVE-2022-22047](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-22047>).\n * Confirm that Microsoft Defender Antivirus is updated to security intelligence update **1.371.503.0** or later to detect the related indicators.\n * Use the included indicators of compromise to investigate whether they exist in your environment and assess for potential intrusion.\n * [Change Excel macro security settings](<https://support.microsoft.com/office/change-macro-security-settings-in-excel-a97c09d2-c082-46b8-b19f-e8621e8fe373>) to control which macros run and under what circumstances when you open a workbook. Customers can also [stop malicious XLM or VBA macros](<https://www.microsoft.com/security/blog/2021/03/03/xlm-amsi-new-runtime-defense-against-excel-4-0-macro-malware/>) by ensuring runtime macro scanning by Antimalware Scan Interface ([AMSI](<https://docs.microsoft.com/windows/win32/amsi/antimalware-scan-interface-portal>)) is on. This feature\u2014enabled by default\u2014is on if the Group Policy setting for Macro Run Time Scan Scope is set to \u201cEnable for All Files\u201d or \u201cEnable for Low Trust Files\u201d.\n * Enable multifactor authentication (MFA) to mitigate potentially compromised credentials and ensure that MFA is enforced for all remote connectivity. _Note:_ Microsoft strongly encourages all customers download and use password-less solutions like [Microsoft Authenticator](<https://www.microsoft.com/account/authenticator/>) to secure accounts.\n * Review all authentication activity for remote access infrastructure, with a particular focus on accounts configured with single factor authentication, to confirm authenticity and investigate any anomalous activity.\n\n## Indicators of compromise (IOCs)\n\nThe following list provides IOCs observed during our investigation. We encourage our customers to investigate these indicators in their environments and implement detections and protections to identify past related activity and prevent future attacks against their systems. All sample hashes are available in VirusTotal.\n\nIndicator| Type| Description \n---|---|--- \n78c255a98003a101fa5ba3f49c50c6922b52ede601edac5db036ab72efc57629| SHA-256| Malicious Excel document and VBA \n0588f61dc7e4b24554cffe4ea56d043d8f6139d2569bc180d4a77cf75b68792f| SHA-256| Malicious Excel document and VBA \n441a3810b9e89bae12eea285a63f92e98181e9fb9efd6c57ef6d265435484964| SHA-256| Jumplump malware \ncbae79f66f724e0fe1705d6b5db3cc8a4e89f6bdf4c37004aa1d45eeab26e84b| SHA-256| Jumplump malware \nfd6515a71530b8329e2c0104d0866c5c6f87546d4b44cc17bbb03e64663b11fc| SHA-256| Jumplump malware \n5d169e083faa73f2920c8593fb95f599dad93d34a6aa2b0f794be978e44c8206| SHA-256| Jumplump malware \n7f29b69eb1af1cc6c1998bad980640bfe779525fd5bb775bc36a0ce3789a8bfc| SHA-256| Jumplump malware \n02a59fe2c94151a08d75a692b550e66a8738eb47f0001234c600b562bf8c227d| SHA-256| Jumplump malware \n7f84bf6a016ca15e654fb5ebc36fd7407cb32c69a0335a32bfc36cb91e36184d| SHA-256| Jumplump malware \nafab2e77dc14831f1719e746042063a8ec107de0e9730249d5681d07f598e5ec| SHA-256| Jumplump malware \n894138dfeee756e366c65a197b4dbef8816406bc32697fac6621601debe17d53| SHA-256| Jumplump malware \n4611340fdade4e36f074f75294194b64dcf2ec0db00f3d958956b4b0d6586431| SHA-256| Jumplump malware \nc96ae21b4cf2e28eec222cfe6ca903c4767a068630a73eca58424f9a975c6b7d| SHA-256| Corelump malware \nfa30be45c5c5a8f679b42ae85410f6099f66fe2b38eb7aa460bcc022babb41ca| SHA-256| Mex tool \ne64bea4032cf2694e85ede1745811e7585d3580821a00ae1b9123bb3d2d442d6| SHA-256| Passlib tool \nacrobatrelay[.]com__| Domain| C2 \nfinconsult[.]cc| Domain| C2 \nrealmetaldns[.]com| Domain| C2 \n \n**NOTE:** These indicators should not be considered exhaustive for this observed activity.\n\n## Detections\n\n### Microsoft Defender Antivirus\n\nMicrosoft Defender Antivirus detects the malware tools and implants used by KNOTWEED starting with signature build **1.371.503.0** as the following family names:\n\n * _Backdoor:O97M/JumplumpDropper_\n * _Trojan:Win32/Jumplump_\n * _Trojan:Win32/Corelump_\n * _HackTool:Win32/Mexlib_\n * _Trojan:Win32/Medcerc_\n * _Behavior:Win32/SuspModuleLoad_\n\n### Microsoft Defender for Endpoint\n\nMicrosoft Defender for Endpoint customers may see the following alerts as an indication of a possible attack. These alerts are not necessarily an indication of KNOTWEED compromise:\n\n * _COM Hijacking _- Detects multiple behaviors, including _JumpLump_ malware persistence techniques.\n * _Possible privilege escalation using CTF module _- Detects a possible privilege escalation behavior associated with CVE-2022-2204; also detects an attempt to perform local privilege escalation by launching an elevated process and loading an untrusted module to perform malicious activities\n * _KNOTWEED actor activity detected _- Detects KNOTWEED actor activities\n * _WDigest configuration change _- Detects potential retrieval of clear text password from changes to _UseLogonCredential_ registry key\n * _Sensitive credential memory read _- Detects LSASS credential dumping via minidumps\n * _Suspicious Curl behavior _- Detects the use of Curl to download KNOTWEED tooling from public file shares\n * _Suspicious screen capture activity_ - Detects _Corelump_ behavior of capturing screenshots of the compromised system\n\n## Hunting queries\n\n### Microsoft Sentinel\n\nThe following resources are available to Microsoft Sentinel customers to identify the activity outlined in the blog post.\n\n**Microsoft Defender Antivirus detections related to KNOTWEED**\n\nThis query identifies occurrences of Microsoft Defender Antivirus detections listed in this blog post:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/KNOTWEEDAVDetection.yaml>\n\n**File hash IOCs related to KNOTWEED**\n\nThis query identifies matches based on file hash IOCs related to KNOTWEED across a range of common Microsoft Sentinel data sets:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/KNOTWEEDFileHashesJuly2022.yaml>\n\n**Domain IOCs related to KNOTWEED**\n\nThis query identifies matches based on domain IOCs related to KNOTWEED across a range of common Microsoft Sentinel data sets:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/KNOTWEEDC2DomainsJuly2022.yaml>\n\n**COM registry key modified to point to Color Profile folder**\n\nThis query identifies modifications to COM registry keys to point to executable files in _C:\\Windows\\System32\\spool\\drivers\\color\\_:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/COMRegistryKeyModifiedtoPointtoFileinColorDrivers.yaml>\n\n**PE file dropped in Color Profile folder**\n\nThis query looks for PE files being created in the _C:\\Windows\\System32\\spool\\drivers\\color\\_ folder:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/DeviceFileEvents/PEfiledroppedinColorDriversFolder.yaml>\n\n**Abnormally large JPEG downloaded from new source**\n\nThis query looks for downloads of JPEG files from remote sources, where the file size is abnormally large, and not from a common source:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/CommonSecurityLog/AbnormallyLargeJPEGFiledDownloadedfromNewSource.yaml>\n\n**Downloading new file using Curl**\n\nThis query looks for new files being downloaded using Curl.\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/MultipleDataSources/DownloadofNewFileUsingCurl.yaml>\n\n**Suspected ****credential dumping**\n\nThis query looks for attackers using comsvcs.dll to dump credentials from memory\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/SecurityEvent/SuspectedLSASSDump.yaml>\n\n**Downgrade to ****plaintext credentials**\n\nThis query looks for registry key being set to enabled plain text credentials\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Detections/SecurityEvent/WDigestDowngradeAttack.yaml>\n\n### Microsoft 365 Defender advanced hunting\n\nMicrosoft 365 Defender customers can run the following advanced hunting queries to locate IOCs and related malicious activity in their environments.\n\n**Microsoft Defender Antivirus detections related to KNOTWEED**\n\nThis query identifies detection of related malware and tools by Microsoft Defender Antivirus:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-AVDetections.yaml>\n\n**File hash IOCs related to KNOTWEED**\n\nThis query surfaces KNOTWEED file hash IOCs across Microsoft Defender for Endpoint tables:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-FileHashIOCsJuly2022.yaml>\n\n**Domain IOCs related to KNOTWEED**\n\nThis query identifies matches based on domain IOCs related to KNOTWEED against Microsoft Defender for Endpoint device network connections:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-DomainIOCsJuly2022.yaml>\n\n**COM registry key modified to point to Color Profile folder**\n\nThis query identifies modifications to COM registry keys to point to executable files in _C:\\Windows\\System32\\spool\\drivers\\color\\_:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-COMRegistryKeyModifiedtoPointtoColorProfileFolder.yaml>\n\n**PE file dropped in Color Profile folder**\n\nThis query looks for PE files being created in the _C:\\Windows\\System32\\spool\\drivers\\color\\ folder_:\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-PEFileDroppedinColorProfileFolder.yaml>\n\n**Downloading new file using Curl**\n\nThis query looks for new files being downloaded using Curl.\n\n<https://github.com/Azure/Azure-Sentinel/blob/master/Hunting%20Queries/Microsoft%20365%20Defender/Campaigns/KNOTWEED/KNOTWEED-DownloadingnewfileusingCurl.yaml>\n\nThe post [Untangling KNOTWEED: European private-sector offensive actor using 0-day exploits](<https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/>) appeared first on [Microsoft Security Blog](<https://www.microsoft.com/security/blog>).", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2022-07-27T14:00:00", "type": "mssecure", "title": "Untangling KNOTWEED: European private-sector offensive actor using 0-day exploits", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-36948", "CVE-2022-2204", "CVE-2022-22047"], "modified": "2022-07-27T14:00:00", "id": "MSSECURE:85647D37E79AFEF2BFF74B4682648C5E", "href": "https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "krebs": [{"lastseen": "2021-06-15T08:32:06", "description": "**Microsoft** today released another round of security updates for **Windows** operating systems and supported software, _including fixes for six zero-day bugs that malicious hackers already are exploiting in active attacks._\n\n\n\nJune&#x27;s Patch Tuesday addresses just 49 security holes -- about half the normal number of vulnerabilities lately. But what this month lacks in volume it makes up for in urgency: Microsoft warns that bad guys are leveraging a half-dozen of those weaknesses to break into computers in targeted attacks.\n\nAmong the zero-days are:\n\n-[CVE-2021-33742](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33742>), a remote code execution bug in a Windows HTML component. \n-[CVE-2021-31955](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31955>), an information disclosure bug in the Windows Kernel \n-[CVE-2021-31956](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31956>), an elevation of privilege flaw in Windows NTFS \n-[CVE-2021-33739](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33739>), an elevation of privilege flaw in the Microsoft Desktop Window Manager \n-[CVE-2021-31201](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31201>), an elevation of privilege flaw in the Microsoft Enhanced Cryptographic Provider \n-[CVE-2021-31199](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31199>), an elevation of privilege flaw in the Microsoft Enhanced Cryptographic Provider\n\n**Kevin Breen**, director of cyber threat research at **Immersive Labs**, said elevation of privilege flaws are just as valuable to attackers as remote code execution bugs: Once the attacker has gained an initial foothold, he can move laterally across the network and uncover further ways to escalate to system or domain-level access.\n\n&quot;This can be hugely damaging in the event of ransomware attacks, where high privileges can enable the attackers to stop or destroy backups and other security tools,&quot; Breen said. &quot;The &#x27;exploit detected&#x27; tag means attackers are actively using them, so for me, it\u2019s the most important piece of information we need to prioritize the patches.&quot;\n\nMicrosoft also patched five critical bugs -- flaws that can be remotely exploited to seize control over the targeted Windows computer without any help from users. [CVE-2021-31959](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31959>) affects everything from **Windows 7** through **Windows 10** and **Server** versions **2008**,** 2012**, **2016** and **2019**.\n\n**Sharepoint** also got a critical update in [CVE-2021-31963](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31963>); Microsoft says this one is less likely to be exploited, but then critical Sharepoint flaws are a favorite target of ransomware criminals.\n\nInterestingly, two of the Windows zero-day flaws -- CVE-2021-31201 and CVE-2021-31199 -- are related to a patch **Adobe** released recently for [CVE-2021-28550](<https://helpx.adobe.com/security/products/acrobat/apsb21-29.html>), a flaw in **Adobe Acrobat** and **Reader** that also is being actively exploited.\n\n&quot;Attackers have been seen exploiting these vulnerabilities by sending victims specially crafted PDFs, often attached in a phishing email, that when opened on the victim&#x27;s machine, the attacker is able to gain arbitrary code execution,&quot; said** Christopher Hass**, director of information security and research at **Automox**. &quot;There are no workarounds for these vulnerabilities, patching as soon as possible is highly recommended.&quot;\n\nIn addition to updating Acrobat and Reader, Adobe patched flaws in a slew of other products today, including **Adobe Connect,** **Photoshop**, and **Creative Cloud**. The full list is [here](<https://helpx.adobe.com/security.html>), with links to updates.\n\nThe usual disclaimer:\n\nBefore you update with this month\u2019s patch batch, please make sure you have backed up your system and/or important files. It\u2019s not uncommon for Windows updates to hose one\u2019s system or prevent it from booting properly, and some updates even have been known to erase or corrupt files.\n\nSo do yourself a favor and backup _before_ installing any patches. Windows 10 even has [some built-in tools](<https://lifehacker.com/how-to-back-up-your-computer-automatically-with-windows-1762867473>) to help you do that, either on a per-file/folder basis or by making a complete and bootable copy of your hard drive all at once.\n\nAnd if you wish to ensure Windows has been set to pause updating so you can back up your files and/or system before the operating system decides to reboot and install patches on its own schedule, see [this guide](<https://www.computerworld.com/article/3543189/check-to-make-sure-you-have-windows-updates-paused.html>).\n\nAs always, if you experience glitches or problems installing any of these patches this month, please consider leaving a comment about it below; there\u2019s a better-than-even chance other readers have experienced the same and may chime in here with some helpful tips.\n\nFor a quick visual breakdown of each update released today and its severity level, check out the [this Patch Tuesday post](<https://isc.sans.edu/forums/diary/Microsoft+June+2021+Patch+Tuesday/27506/>) from the **SANS Internet Storm Center**.", "edition": 2, "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 7.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-06-08T20:53:28", "type": "krebs", "title": "Microsoft Patches Six Zero-Day Security Holes", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31959", "CVE-2021-31963", "CVE-2021-33739", "CVE-2021-33742"], "modified": "2021-06-08T20:53:28", "id": "KREBS:E374075CAB55D7AB06EBD73CB87D33CD", "href": "https://krebsonsecurity.com/2021/06/microsoft-patches-six-zero-day-security-holes/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "threatpost": [{"lastseen": "2021-06-08T22:18:00", "description": "Microsoft jumped on 50 vulnerabilities in this month\u2019s [Patch Tuesday update](<https://msrc.microsoft.com/update-guide>), issuing fixes for CVEs in Microsoft Windows, .NET Core and Visual Studio, Microsoft Office, Microsoft Edge (Chromium-based and EdgeHTML), SharePoint Server, Hyper-V, Visual Studio Code \u2013 Kubernetes Tools, Windows HTML Platform, and Windows Remote Desktop.\n\nFive of the CVEs are rated Critical and 45 are rated Important in severity. Microsoft reported that six of the bugs are currently under active attack, while three are publicly known at the time of release.\n\nThe number might seem light \u2013 it represents six fewer patches than Microsoft [released in May](<https://threatpost.com/wormable-windows-bug-dos-rce/166057/>) \u2013 but the number of critical vulnerabilities ticked up to five month-over-month.\n\n[](<https://threatpost.com/newsletter-sign/>)\n\nThose actively exploited vulnerabilities can enable an attacker to hijack a system. They have no workarounds, so some security experts are recommending that they be patched as the highest priority.\n\nThe six CVEs under active attack in the wild include four elevation of privilege vulnerabilities, one information disclosure vulnerability and one remote code execution (RCE) vulnerability.\n\n## Critical Bugs of Note\n\n[CVE-2021-31985](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31985>) is a critical RCE vulnerability in Microsoft\u2019s Defender antimalware software that should grab attention. A similar, critical bug in Defender was [patched in January](<https://threatpost.com/critical-microsoft-defender-bug-exploited/162992/>). The most serious of the year\u2019s first Patch Tuesday, that earlier Defender bug was an RCE vulnerability that came under active exploit.\n\nAnother critical flaw is [CVE-2021-31963](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31963>), a Microsoft SharePoint Server RCE vulnerability. Jay Goodman, director of product marketing at Automox, said in a [blog post](<https://blog.automox.com/automox-experts-weigh-in-june-patch-tuesday-2021>) that an attacker exploiting this vulnerability \u201ccould take control of a system where they would be free to install programs, view or change data, or create new accounts on the target system with full user rights.\u201d \nWhile Microsoft reports that this vulnerability is less likely to be exploited,Goodman suggested that organizations don\u2019t let it slide: \u201cPatching critical vulnerabilities in the 72-hour window before attackers can weaponize is an important first step to maintaining a safe and secure infrastructure,\u201d he observed.\n\n[](<https://media.threatpost.com/wp-content/uploads/sites/103/2021/06/08141612/Sophos-impact-chart-June-21-patch-Tuesday-e1623176186946.png>)\n\nA year-to-date summary of 2021 Microsoft vulnerability releases as of June. Source: Sophos\n\n## Bugs Exploited in the Wild\n\nMicrosoft fixed a total of seven zero-day vulnerabilities. One was [CVE-2021-31968](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31968>), Windows Remote Desktop Services Denial of Service Vulnerability that was publicly disclosed but hasn\u2019t been seen in attacks. It was issued a CVSS score of 7.5.\n\nThese are the six flaws that MIcrosoft said are under active attack, all of them also zero days.\n\n * [CVE-2021-31955](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955>) \u2013 Windows Kernel Information Disclosure Vulnerability. Rating: Important. CVSS 5.5\n * [CVE-2021-31956](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31956>) \u2013 Windows NTFS Elevation of Privilege Vulnerability. Rating: Important. CVSS 7.8\n * [CVE-2021-33739](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33739>) \u2013 Microsoft DWM Core Library Elevation of Privilege Vulnerability. Rating: Important. CVSS 8.4\n * [CVE-2021-33742](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742>) \u2013 Windows MSHTML Platform Remote Code Execution Vulnerability. Rating: **Critical**. CVSS 7.5\n * [CVE-2021-31199](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31199>) \u2013 Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability. Rating: Important. CVSS 5.2\n * [CVE-2021-31201](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31201>) \u2013 Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability. Rating: Important. CVSS 5.2\n\n## CVE-2021-33742\n\nThis RCE vulnerability exploits MSHTML, a component used by the Internet Explorer engine to read and display content from websites.The bug could allow an attacker to execute code on a target system if a user views specially crafted web content. The [Zero Day Initiative](<https://www.zerodayinitiative.com/blog/2021/6/8/the-june-2021-security-update-review>)\u2018s (ZDI\u2019s) Dustin Childs noted in his Patch Tuesday analysis that since the vulnerability is in the Trident (MSHTML) engine itself, many different applications are affected, not just Internet Explorer. \u201cIt\u2019s not clear how widespread the active attacks are, but considering the vulnerability impacts all supported Windows versions, this should be at the top of your test and deploy list,\u201d he recommended.\n\nThe vulnerability doesn\u2019t require special privilege to exploit, though the attack complexity is high, if that\u2019s any consolation. An attacker would need to do some extra legwork to pull it off, noted Satnam Narang, staff research engineer at Tenable, in an email to Threatpost on Tuesday.\n\nImmersive Labs\u2019 Kevin Breen, director of cyber threat research, noted that visiting a website in a vulnerable browser is \u201ca simple way for attackers to deliver this exploit.\u201d He told Threatpost via email on Tuesday that since the library is used by other services and applications, \u201cemailing HTML files as part of a phishing campaign is also a viable method of delivery.\u201d\n\n[Sophos decreed](<https://news.sophos.com/en-us/2021/06/08/six-in-the-wild-exploits-patched-in-microsofts-june-security-fix-release/>) this one to be the top concern of this month\u2019s crop, given that it\u2019s already being actively exploited by malicious actors.\n\n## CVE-2021-31955, CVE-2021-31956: Used in PuzzleMaker Targeted Malware\n\nCVE-2021-31955 is an information disclosure vulnerability in the Windows Kernel, while CVE-2021-31956 is an elevation of privilege vulnerability in Windows NTFS. The ZDI\u2019s Childs noted that CVE-2021-31956 was reported by the same researcher who found CVE-2021-31955, an information disclosure bug also listed as under active attack. They could be linked, he suggested: \u201cIt\u2019s possible these bugs were used in conjunction, as that is a common technique \u2013 use a memory leak to get the address needed to escalate privileges. These bugs are important on their own and could be even worse when combined. Definitely prioritize the testing and deployment of these patches.\u201d\n\nHe was spot-on. On Tuesday, Kaspersky announced that its researchers had discovered a highly targeted malware campaign launched in April against multiple companies, in which a previously unknown threat actor used a chain of Chrome and Windows zero-day exploits: Namely, these two.\n\nIn a press release, Kaspersky said that one of the exploits was used for RCE in the Google Chrome web browser, while the other was an elevation of privilege exploit fine-tuned to target \u201cthe latest and most prominent builds\u201d of Windows 10.\n\n\u201cRecent months have seen a wave of advanced threat activity exploiting zero-days in the wild,\u201d according to the release. \u201cIn mid-April, Kaspersky experts discovered yet a new series of highly targeted exploit attacks against multiple companies that allowed the attackers to stealthily compromise the targeted networks.\u201d\n\nKaspersky hasn\u2019t yet found a connection between these attacks and any known threat actors, so it\u2019s gone ahead and dubbed the actor PuzzleMaker. It said that all the attacks were conducted through Chrome and used an exploit that allowed for RCE. Kaspersky researchers weren\u2019t able to retrieve the code for the exploit, but the timeline and availability suggests the attackers were using the now-patched [CVE-2021-21224](<https://www.cvedetails.com/cve/CVE-2021-21224>) vulnerability in Chrome and Chromium browsers that allows attackers to exploit the Chrome renderer process (the processes that are responsible for what happens inside users\u2019 tabs).\n\nKaspersky experts did find and analyze the second exploit, however: An elevation of privilege exploit that exploits two distinct vulnerabilities in the Microsoft Windows OS kernel: CVE-2021-31955 and CVE-2021-31956. The CVE-2021-31955 bug \u201cis affiliated with SuperFetch, a feature first introduced in Windows Vista that aims to reduce software loading times by pre-loading commonly used applications into memory,\u201d they explained.\n\nThe second flaw, CVE-2021-31956, is an Elevation of Privilege vulnerability and heap-based buffer overflow. Kaspersky said that attackers used this vulnerability alongside Windows Notification Facility (WNF) \u201cto create arbitrary memory read/write primitives and execute malware modules with system privileges.\u201d\n\n\u201cOnce the attackers have used both the Chrome and Windows exploits to gain a foothold in the targeted system, the stager module downloads and executes a more complex malware dropper from a remote server,\u201d they continued. \u201cThis dropper then installs two executables, which pretend to be legitimate files belonging to Microsoft Windows OS. The second of these two executables is a remote shell module, which is able to download and upload files, create processes, sleep for certain periods of time, and delete itself from the infected system.\u201d\n\nBoris Larin, senior security researcher with Kaspersky\u2019s Global Research and Analysis Team (GReAT), said that the team hasn\u2019t been able to link these highly targeted attacks to any known threat actor: Hence the name PuzzleMaker and the determination to closely monitor the security landscape \u201cfor future activity or new insights about this group,\u201d he was quoted as saying in the press release.\n\nIf the current trend is any indication, expect to see more of the same, Larin said. \u201cOverall, of late, we\u2019ve been seeing several waves of high-profile threat activity being driven by zero-day exploits,\u201d he said. \u201cIt\u2019s a reminder that zero days continue to be the most effective method for infecting targets. Now that these vulnerabilities have been made publicly known, it\u2019s possible that we\u2019ll see an increase of their usage in attacks by this and other threat actors. That means it\u2019s very important for users to download the latest patch from Microsoft as soon as possible.\u201d\n\n## CVE-2021-31199/CVE-2021-31201\n\nThe two Enhanced Cryptographic Provider Elevation of Privilege vulnerabilities are linked to the Adobe Reader bug that [came under active attack](<https://threatpost.com/adobe-zero-day-bug-acrobat-reader/166044/>) last month (CVE-2021-28550), ZDI explained. \u201cIt\u2019s common to see privilege escalation paired with code execution bugs, and it seems these two vulnerabilities were the privilege escalation part of those exploits,\u201d he explained. \u201cIt is a bit unusual to see a delay between patch availability between the different parts of an active attack, but good to see these holes now getting closed.\u201d\n\n## CVE-2021-33739\n\nBreen noted that privilege escalation vulnerabilities such as this one in the Microsoft DWM Core Library are just as valuable to attackers as RCEs. \u201cOnce they have gained an initial foothold, they can move laterally across the network and uncover further ways to escalate to system or domain-level access,\u201d he said. \u201cThis can be hugely damaging in the event of ransomware attacks, where high privileges can enable the attackers to stop or destroy backups and other security tools.\u201d\n\n**Download our exclusive FREE Threatpost Insider eBook, ****_\u201c_**[**_2021: The Evolution of Ransomware_**](<https://threatpost.com/ebooks/2021-the-evolution-of-ransomware/?utm_source=April_eBook&utm_medium=ART&utm_campaign=ART>)**_,\u201d_**** to help hone your cyber-defense strategies against this growing scourge. We go beyond the status quo to uncover what\u2019s next for ransomware and the related emerging risks. Get the whole story and **[**DOWNLOAD**](<https://threatpost.com/ebooks/2021-the-evolution-of-ransomware/?utm_source=April_eBook&utm_medium=ART&utm_campaign=ART>)** the eBook now \u2013 on us!**\n", "cvss3": {}, "published": "2021-06-08T21:45:12", "type": "threatpost", "title": "Microsoft Patch Tuesday Fixes 6 In-The-Wild Exploits", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-21224", "CVE-2021-28550", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31963", "CVE-2021-31968", "CVE-2021-31985", "CVE-2021-33739", "CVE-2021-33742"], "modified": "2021-06-08T21:45:12", "id": "THREATPOST:61CC1EAC83030C2B053946454FE77AC3", "href": "https://threatpost.com/microsoft-patch-tuesday-in-the-wild-exploits/166724/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "nessus": [{"lastseen": "2022-05-10T03:09:58", "description": "The remote Windows host is missing security update 5003695. It is, therefore, affected by multiple vulnerabilities", "cvss3": {"score": 9.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "published": "2021-06-08T00:00:00", "type": "nessus", "title": "KB5003695: Windows Server 2008 Security Update (June 2021)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31962", "CVE-2021-31971", "CVE-2021-31973", "CVE-2021-33742"], "modified": "2022-05-09T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS21_JUN_5003695.NASL", "href": "https://www.tenable.com/plugins/nessus/150357", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable Network Security, Inc.\n\n#\n# The descriptive text and package checks in this plugin were\n# extracted from the Microsoft Security Updates API. The text\n# itself is copyright (C) Microsoft Corporation.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(150357);\n script_version(\"1.10\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/09\");\n\n script_cve_id(\n \"CVE-2021-1675\",\n \"CVE-2021-26414\",\n \"CVE-2021-31199\",\n \"CVE-2021-31201\",\n \"CVE-2021-31953\",\n \"CVE-2021-31954\",\n \"CVE-2021-31956\",\n \"CVE-2021-31958\",\n \"CVE-2021-31962\",\n \"CVE-2021-31971\",\n \"CVE-2021-31973\",\n \"CVE-2021-33742\"\n );\n script_xref(name:\"MSKB\", value:\"5003661\");\n script_xref(name:\"MSKB\", value:\"5003695\");\n script_xref(name:\"MSFT\", value:\"MS21-5003661\");\n script_xref(name:\"MSFT\", value:\"MS21-5003695\");\n script_xref(name:\"IAVA\", value:\"2021-A-0280-S\");\n script_xref(name:\"IAVA\", value:\"2021-A-0279-S\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"KB5003695: Windows Server 2008 Security Update (June 2021)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Windows host is affected by multiple vulnerabilities.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Windows host is missing security update 5003695. It is, therefore, affected by multiple vulnerabilities\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003695\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003661\");\n script_set_attribute(attribute:\"solution\", value:\n\"Apply Cumulative Update 5003695\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-31956\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-31962\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/06/08\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"smb_check_rollup.nasl\", \"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, \"Host/patch_management_checks\");\n\n exit(0);\n}\n\ninclude('smb_func.inc');\ninclude('smb_hotfixes.inc');\ninclude('smb_hotfixes_fcheck.inc');\ninclude('smb_reg_query.inc');\n\nget_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');\n\nbulletin = 'MS21-06';\nkbs = make_list(\n '5003695',\n '5003661'\n);\n\nif (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit('SMB/Registry/Enumerated');\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(vista:'2') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nshare = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif (\n smb_check_rollup(os:'6.0', \n sp:2,\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003695, 5003661])\n)\n{\n replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);\n hotfix_security_hole();\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, hotfix_get_audit_report());\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-10T03:11:23", "description": "The remote Windows host is missing security update 5003694. It is, therefore, affected by multiple vulnerabilities", "cvss3": {"score": 9.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "published": "2021-06-08T00:00:00", "type": "nessus", "title": "KB5003694: Windows Server 2008 R2 Security Update (June 2021)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31962", "CVE-2021-31968", "CVE-2021-31971", "CVE-2021-31973", "CVE-2021-33742"], "modified": "2022-05-09T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS21_JUN_5003694.NASL", "href": "https://www.tenable.com/plugins/nessus/150368", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable Network Security, Inc.\n\n#\n# The descriptive text and package checks in this plugin were\n# extracted from the Microsoft Security Updates API. The text\n# itself is copyright (C) Microsoft Corporation.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(150368);\n script_version(\"1.12\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/09\");\n\n script_cve_id(\n \"CVE-2021-1675\",\n \"CVE-2021-26414\",\n \"CVE-2021-31199\",\n \"CVE-2021-31201\",\n \"CVE-2021-31953\",\n \"CVE-2021-31954\",\n \"CVE-2021-31956\",\n \"CVE-2021-31958\",\n \"CVE-2021-31959\",\n \"CVE-2021-31962\",\n \"CVE-2021-31968\",\n \"CVE-2021-31971\",\n \"CVE-2021-31973\",\n \"CVE-2021-33742\"\n );\n script_xref(name:\"MSKB\", value:\"5003667\");\n script_xref(name:\"MSKB\", value:\"5003694\");\n script_xref(name:\"MSFT\", value:\"MS21-5003667\");\n script_xref(name:\"MSFT\", value:\"MS21-5003694\");\n script_xref(name:\"IAVA\", value:\"2021-A-0280-S\");\n script_xref(name:\"IAVA\", value:\"2021-A-0279-S\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"KB5003694: Windows Server 2008 R2 Security Update (June 2021)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Windows host is affected by multiple vulnerabilities.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Windows host is missing security update 5003694. It is, therefore, affected by multiple vulnerabilities\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003694\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003667\");\n script_set_attribute(attribute:\"solution\", value:\n\"Apply Cumulative Update 5003694\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-31956\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-31962\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/06/08\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"smb_check_rollup.nasl\", \"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, \"Host/patch_management_checks\");\n\n exit(0);\n}\n\ninclude('smb_func.inc');\ninclude('smb_hotfixes.inc');\ninclude('smb_hotfixes_fcheck.inc');\ninclude('smb_reg_query.inc');\n\nget_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');\n\nbulletin = 'MS21-06';\nkbs = make_list(\n '5003694',\n '5003667'\n);\n\nif (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit('SMB/Registry/Enumerated');\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(win7:'1') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nshare = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif (\n smb_check_rollup(os:'6.1', \n sp:1,\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003694, 5003667])\n)\n{\n replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);\n hotfix_security_hole();\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, hotfix_get_audit_report());\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-10T03:09:58", "description": "The remote Windows host is missing security update 5003697. It is, therefore, affected by multiple vulnerabilities", "cvss3": {"score": 9.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "published": "2021-06-08T00:00:00", "type": "nessus", "title": "KB5003697: Windows Server 2012 Security Update (June 2021)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31962", "CVE-2021-31968", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-33742"], "modified": "2022-05-09T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS21_JUN_5003697.NASL", "href": "https://www.tenable.com/plugins/nessus/150363", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable Network Security, Inc.\n\n#\n# The descriptive text and package checks in this plugin were\n# extracted from the Microsoft Security Updates API. The text\n# itself is copyright (C) Microsoft Corporation.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(150363);\n script_version(\"1.12\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/09\");\n\n script_cve_id(\n \"CVE-2021-1675\",\n \"CVE-2021-26414\",\n \"CVE-2021-31199\",\n \"CVE-2021-31201\",\n \"CVE-2021-31953\",\n \"CVE-2021-31954\",\n \"CVE-2021-31956\",\n \"CVE-2021-31958\",\n \"CVE-2021-31959\",\n \"CVE-2021-31962\",\n \"CVE-2021-31968\",\n \"CVE-2021-31970\",\n \"CVE-2021-31971\",\n \"CVE-2021-31973\",\n \"CVE-2021-31974\",\n \"CVE-2021-31975\",\n \"CVE-2021-31976\",\n \"CVE-2021-33742\"\n );\n script_xref(name:\"MSKB\", value:\"5003697\");\n script_xref(name:\"MSFT\", value:\"MS21-5003697\");\n script_xref(name:\"IAVA\", value:\"2021-A-0280-S\");\n script_xref(name:\"IAVA\", value:\"2021-A-0279-S\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"KB5003697: Windows Server 2012 Security Update (June 2021)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Windows host is affected by multiple vulnerabilities.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Windows host is missing security update 5003697. It is, therefore, affected by multiple vulnerabilities\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003697\");\n script_set_attribute(attribute:\"solution\", value:\n\"Apply Cumulative Update 5003697\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-31956\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-31962\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/06/08\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"smb_check_rollup.nasl\", \"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, \"Host/patch_management_checks\");\n\n exit(0);\n}\n\ninclude('smb_func.inc');\ninclude('smb_hotfixes.inc');\ninclude('smb_hotfixes_fcheck.inc');\ninclude('smb_reg_query.inc');\n\nget_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');\n\nbulletin = 'MS21-06';\nkbs = make_list(\n '5003697'\n);\n\nif (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit('SMB/Registry/Enumerated');\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(win8:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nshare = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif (\n smb_check_rollup(os:'6.2', \n sp:0,\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003697])\n)\n{\n replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);\n hotfix_security_hole();\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, hotfix_get_audit_report());\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-10T03:09:05", "description": "The remote Windows host is missing security update 5003681. It is, therefore, affected by multiple vulnerabilities", "cvss3": {"score": 9.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "published": "2021-06-08T00:00:00", "type": "nessus", "title": "KB5003681: Windows Server 2012 R2 Security Update (June 2021)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31962", "CVE-2021-31968", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31972", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-33742"], "modified": "2022-05-09T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS21_JUN_5003681.NASL", "href": "https://www.tenable.com/plugins/nessus/150354", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable Network Security, Inc.\n\n#\n# The descriptive text and package checks in this plugin were\n# extracted from the Microsoft Security Updates API. The text\n# itself is copyright (C) Microsoft Corporation.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(150354);\n script_version(\"1.12\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/09\");\n\n script_cve_id(\n \"CVE-2021-1675\",\n \"CVE-2021-26414\",\n \"CVE-2021-31199\",\n \"CVE-2021-31201\",\n \"CVE-2021-31953\",\n \"CVE-2021-31954\",\n \"CVE-2021-31956\",\n \"CVE-2021-31958\",\n \"CVE-2021-31959\",\n \"CVE-2021-31962\",\n \"CVE-2021-31968\",\n \"CVE-2021-31970\",\n \"CVE-2021-31971\",\n \"CVE-2021-31972\",\n \"CVE-2021-31973\",\n \"CVE-2021-31974\",\n \"CVE-2021-31975\",\n \"CVE-2021-31976\",\n \"CVE-2021-33742\"\n );\n script_xref(name:\"MSKB\", value:\"5003671\");\n script_xref(name:\"MSKB\", value:\"5003681\");\n script_xref(name:\"MSFT\", value:\"MS21-5003671\");\n script_xref(name:\"MSFT\", value:\"MS21-5003681\");\n script_xref(name:\"IAVA\", value:\"2021-A-0280-S\");\n script_xref(name:\"IAVA\", value:\"2021-A-0279-S\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"KB5003681: Windows Server 2012 R2 Security Update (June 2021)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Windows host is affected by multiple vulnerabilities.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Windows host is missing security update 5003681. It is, therefore, affected by multiple vulnerabilities\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003681\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003671\");\n script_set_attribute(attribute:\"solution\", value:\n\"Apply Cumulative Update 5003681\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-31956\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-31962\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/06/08\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"smb_check_rollup.nasl\", \"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, \"Host/patch_management_checks\");\n\n exit(0);\n}\n\ninclude('smb_func.inc');\ninclude('smb_hotfixes.inc');\ninclude('smb_hotfixes_fcheck.inc');\ninclude('smb_reg_query.inc');\n\nget_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');\n\nbulletin = 'MS21-06';\nkbs = make_list(\n '5003681',\n '5003671'\n);\n\nif (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit('SMB/Registry/Enumerated');\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(win81:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nshare = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif (\n smb_check_rollup(os:'6.3', \n sp:0,\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003681, 5003671])\n)\n{\n replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);\n hotfix_security_hole();\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, hotfix_get_audit_report());\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-10T03:11:24", "description": "The remote Windows host is missing security update 5003638. It is, therefore, affected by multiple vulnerabilities", "cvss3": {"score": 9.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "published": "2021-06-08T00:00:00", "type": "nessus", "title": "KB5003638: Windows 10 version 1607 / Windows Server 2016 Security Update (June 2021)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31962", "CVE-2021-31968", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31972", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-31977", "CVE-2021-33742"], "modified": "2022-05-09T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS21_JUN_5003638.NASL", "href": "https://www.tenable.com/plugins/nessus/150367", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable Network Security, Inc.\n\n#\n# The descriptive text and package checks in this plugin were\n# extracted from the Microsoft Security Updates API. The text\n# itself is copyright (C) Microsoft Corporation.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(150367);\n script_version(\"1.12\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/09\");\n\n script_cve_id(\n \"CVE-2021-1675\",\n \"CVE-2021-26414\",\n \"CVE-2021-31199\",\n \"CVE-2021-31201\",\n \"CVE-2021-31953\",\n \"CVE-2021-31954\",\n \"CVE-2021-31956\",\n \"CVE-2021-31958\",\n \"CVE-2021-31959\",\n \"CVE-2021-31962\",\n \"CVE-2021-31968\",\n \"CVE-2021-31970\",\n \"CVE-2021-31971\",\n \"CVE-2021-31972\",\n \"CVE-2021-31973\",\n \"CVE-2021-31974\",\n \"CVE-2021-31975\",\n \"CVE-2021-31976\",\n \"CVE-2021-31977\",\n \"CVE-2021-33742\"\n );\n script_xref(name:\"MSKB\", value:\"5003638\");\n script_xref(name:\"MSFT\", value:\"MS21-5003638\");\n script_xref(name:\"IAVA\", value:\"2021-A-0280-S\");\n script_xref(name:\"IAVA\", value:\"2021-A-0279-S\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"KB5003638: Windows 10 version 1607 / Windows Server 2016 Security Update (June 2021)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Windows host is affected by multiple vulnerabilities.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Windows host is missing security update 5003638. It is, therefore, affected by multiple vulnerabilities\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003638\");\n script_set_attribute(attribute:\"solution\", value:\n\"Apply Cumulative Update 5003638\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-31956\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-31962\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/06/08\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"smb_check_rollup.nasl\", \"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, \"Host/patch_management_checks\");\n\n exit(0);\n}\n\ninclude('smb_func.inc');\ninclude('smb_hotfixes.inc');\ninclude('smb_hotfixes_fcheck.inc');\ninclude('smb_reg_query.inc');\n\nget_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');\n\nbulletin = 'MS21-06';\nkbs = make_list(\n '5003638'\n);\n\nif (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit('SMB/Registry/Enumerated');\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nshare = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif (\n smb_check_rollup(os:'10', \n sp:0,\n os_build:'14393',\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003638])\n)\n{\n replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);\n hotfix_security_hole();\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, hotfix_get_audit_report());\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-10T03:09:29", "description": "The remote Windows host is missing security update 5003687. It is, therefore, affected by multiple vulnerabilities", "cvss3": {"score": 9.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "published": "2021-06-08T00:00:00", "type": "nessus", "title": "KB5003687: Windows 10 version 1507 LTS Security Update (June 2021)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31962", "CVE-2021-31968", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31972", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-31977", "CVE-2021-33742"], "modified": "2022-05-09T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS21_JUN_5003687.NASL", "href": "https://www.tenable.com/plugins/nessus/150353", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable Network Security, Inc.\n\n#\n# The descriptive text and package checks in this plugin were\n# extracted from the Microsoft Security Updates API. The text\n# itself is copyright (C) Microsoft Corporation.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(150353);\n script_version(\"1.12\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/09\");\n\n script_cve_id(\n \"CVE-2021-1675\",\n \"CVE-2021-26414\",\n \"CVE-2021-31199\",\n \"CVE-2021-31201\",\n \"CVE-2021-31953\",\n \"CVE-2021-31954\",\n \"CVE-2021-31956\",\n \"CVE-2021-31958\",\n \"CVE-2021-31959\",\n \"CVE-2021-31962\",\n \"CVE-2021-31968\",\n \"CVE-2021-31970\",\n \"CVE-2021-31971\",\n \"CVE-2021-31972\",\n \"CVE-2021-31973\",\n \"CVE-2021-31974\",\n \"CVE-2021-31975\",\n \"CVE-2021-31976\",\n \"CVE-2021-31977\",\n \"CVE-2021-33742\"\n );\n script_xref(name:\"MSKB\", value:\"5003687\");\n script_xref(name:\"MSFT\", value:\"MS21-5003687\");\n script_xref(name:\"IAVA\", value:\"2021-A-0280-S\");\n script_xref(name:\"IAVA\", value:\"2021-A-0279-S\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"KB5003687: Windows 10 version 1507 LTS Security Update (June 2021)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Windows host is affected by multiple vulnerabilities.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Windows host is missing security update 5003687. It is, therefore, affected by multiple vulnerabilities\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003687\");\n script_set_attribute(attribute:\"solution\", value:\n\"Apply Cumulative Update 5003687\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-31956\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-31962\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/06/08\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"smb_check_rollup.nasl\", \"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, \"Host/patch_management_checks\");\n\n exit(0);\n}\n\ninclude('smb_func.inc');\ninclude('smb_hotfixes.inc');\ninclude('smb_hotfixes_fcheck.inc');\ninclude('smb_reg_query.inc');\n\nget_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');\n\nbulletin = 'MS21-06';\nkbs = make_list(\n '5003687'\n);\n\nif (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit('SMB/Registry/Enumerated');\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nshare = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif (\n smb_check_rollup(os:'10', \n sp:0,\n os_build:'10240',\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003687])\n)\n{\n replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);\n hotfix_security_hole();\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, hotfix_get_audit_report());\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-10T03:12:14", "description": "The remote Windows host is missing security update 5003635. It is, therefore, affected by multiple vulnerabilities", "cvss3": {"score": 9.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "published": "2021-06-08T00:00:00", "type": "nessus", "title": "KB5003635: Windows 10 version 1909 Security Update (June 2021)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31951", "CVE-2021-31952", "CVE-2021-31954", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31962", "CVE-2021-31968", "CVE-2021-31969", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31972", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-31977", "CVE-2021-33739", "CVE-2021-33742"], "modified": "2022-05-09T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS21_JUN_5003635.NASL", "href": "https://www.tenable.com/plugins/nessus/150369", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable Network Security, Inc.\n\n#\n# The descriptive text and package checks in this plugin were\n# extracted from the Microsoft Security Updates API. The text\n# itself is copyright (C) Microsoft Corporation.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(150369);\n script_version(\"1.12\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/09\");\n\n script_cve_id(\n \"CVE-2021-1675\",\n \"CVE-2021-26414\",\n \"CVE-2021-31199\",\n \"CVE-2021-31201\",\n \"CVE-2021-31951\",\n \"CVE-2021-31952\",\n \"CVE-2021-31954\",\n \"CVE-2021-31955\",\n \"CVE-2021-31956\",\n \"CVE-2021-31958\",\n \"CVE-2021-31959\",\n \"CVE-2021-31962\",\n \"CVE-2021-31968\",\n \"CVE-2021-31969\",\n \"CVE-2021-31970\",\n \"CVE-2021-31971\",\n \"CVE-2021-31972\",\n \"CVE-2021-31973\",\n \"CVE-2021-31974\",\n \"CVE-2021-31975\",\n \"CVE-2021-31976\",\n \"CVE-2021-31977\",\n \"CVE-2021-33739\",\n \"CVE-2021-33742\"\n );\n script_xref(name:\"MSKB\", value:\"5003635\");\n script_xref(name:\"MSFT\", value:\"MS21-5003635\");\n script_xref(name:\"IAVA\", value:\"2021-A-0280-S\");\n script_xref(name:\"IAVA\", value:\"2021-A-0279-S\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"KB5003635: Windows 10 version 1909 Security Update (June 2021)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Windows host is affected by multiple vulnerabilities.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Windows host is missing security update 5003635. It is, therefore, affected by multiple vulnerabilities\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003635\");\n script_set_attribute(attribute:\"solution\", value:\n\"Apply Cumulative Update 5003635\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-31956\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-31962\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/06/08\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"smb_check_rollup.nasl\", \"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, \"Host/patch_management_checks\");\n\n exit(0);\n}\n\ninclude('smb_func.inc');\ninclude('smb_hotfixes.inc');\ninclude('smb_hotfixes_fcheck.inc');\ninclude('smb_reg_query.inc');\n\nget_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');\n\nbulletin = 'MS21-06';\nkbs = make_list(\n '5003635'\n);\n\nif (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit('SMB/Registry/Enumerated');\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nshare = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif (\n smb_check_rollup(os:'10', \n sp:0,\n os_build: '18363',\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003635])\n)\n{\n replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);\n hotfix_security_hole();\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, hotfix_get_audit_report());\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-10T03:09:03", "description": "The remote Windows host is missing security update 5003646. It is, therefore, affected by multiple vulnerabilities", "cvss3": {"score": 9.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "published": "2021-06-08T00:00:00", "type": "nessus", "title": "KB5003646: Windows 10 version 1809 / Windows Server 2019 Security Update (June 2021)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31951", "CVE-2021-31952", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31962", "CVE-2021-31968", "CVE-2021-31969", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31972", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-31977", "CVE-2021-33742"], "modified": "2022-05-09T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS21_JUN_5003646.NASL", "href": "https://www.tenable.com/plugins/nessus/150374", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable Network Security, Inc.\n\n#\n# The descriptive text and package checks in this plugin were\n# extracted from the Microsoft Security Updates API. The text\n# itself is copyright (C) Microsoft Corporation.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(150374);\n script_version(\"1.13\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/09\");\n\n script_cve_id(\n \"CVE-2021-1675\",\n \"CVE-2021-26414\",\n \"CVE-2021-31199\",\n \"CVE-2021-31201\",\n \"CVE-2021-31951\",\n \"CVE-2021-31952\",\n \"CVE-2021-31953\",\n \"CVE-2021-31954\",\n \"CVE-2021-31955\",\n \"CVE-2021-31956\",\n \"CVE-2021-31958\",\n \"CVE-2021-31959\",\n \"CVE-2021-31962\",\n \"CVE-2021-31968\",\n \"CVE-2021-31969\",\n \"CVE-2021-31970\",\n \"CVE-2021-31971\",\n \"CVE-2021-31972\",\n \"CVE-2021-31973\",\n \"CVE-2021-31974\",\n \"CVE-2021-31975\",\n \"CVE-2021-31976\",\n \"CVE-2021-31977\",\n \"CVE-2021-33742\"\n );\n script_xref(name:\"MSKB\", value:\"5003646\");\n script_xref(name:\"MSFT\", value:\"MS21-5003646\");\n script_xref(name:\"IAVA\", value:\"2021-A-0280-S\");\n script_xref(name:\"IAVA\", value:\"2021-A-0279-S\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"KB5003646: Windows 10 version 1809 / Windows Server 2019 Security Update (June 2021)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Windows host is affected by multiple vulnerabilities.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Windows host is missing security update 5003646. It is, therefore, affected by multiple vulnerabilities\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003646\");\n script_set_attribute(attribute:\"solution\", value:\n\"Apply Cumulative Update 5003646\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-31956\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-31962\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/06/08\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"smb_check_rollup.nasl\", \"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, \"Host/patch_management_checks\");\n\n exit(0);\n}\n\ninclude('smb_func.inc');\ninclude('smb_hotfixes.inc');\ninclude('smb_hotfixes_fcheck.inc');\ninclude('smb_reg_query.inc');\n\nget_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');\n\nbulletin = 'MS21-06';\nkbs = make_list(\n '5003646'\n);\n\nif (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit('SMB/Registry/Enumerated');\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nshare = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif (\n smb_check_rollup(os:'10', \n sp:0,\n os_build:'17763',\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003646])\n)\n{\n replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);\n hotfix_security_hole();\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, hotfix_get_audit_report());\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-10T03:09:06", "description": "The remote Windows host is missing security update 5003637. It is, therefore, affected by multiple vulnerabilities", "cvss3": {"score": 9.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "published": "2021-06-08T00:00:00", "type": "nessus", "title": "KB5003637: Windows 10 version 2004 / Windows 10 version 20H2 / Windows 10 version 21H1 Security Update (June 2021)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31951", "CVE-2021-31952", "CVE-2021-31954", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31960", "CVE-2021-31962", "CVE-2021-31968", "CVE-2021-31969", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31972", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-31977", "CVE-2021-33739", "CVE-2021-33742"], "modified": "2022-05-09T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS21_JUN_5003637.NASL", "href": "https://www.tenable.com/plugins/nessus/150370", "sourceData": "#%NASL_MIN_LEVEL 70300\n##\n# (C) Tenable Network Security, Inc.\n\n#\n# The descriptive text and package checks in this plugin were\n# extracted from the Microsoft Security Updates API. The text\n# itself is copyright (C) Microsoft Corporation.\n##\n\ninclude('deprecated_nasl_level.inc');\ninclude('compat.inc');\n\nif (description)\n{\n script_id(150370);\n script_version(\"1.12\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/09\");\n\n script_cve_id(\n \"CVE-2021-1675\",\n \"CVE-2021-26414\",\n \"CVE-2021-31199\",\n \"CVE-2021-31201\",\n \"CVE-2021-31951\",\n \"CVE-2021-31952\",\n \"CVE-2021-31954\",\n \"CVE-2021-31955\",\n \"CVE-2021-31956\",\n \"CVE-2021-31958\",\n \"CVE-2021-31959\",\n \"CVE-2021-31960\",\n \"CVE-2021-31962\",\n \"CVE-2021-31968\",\n \"CVE-2021-31969\",\n \"CVE-2021-31970\",\n \"CVE-2021-31971\",\n \"CVE-2021-31972\",\n \"CVE-2021-31973\",\n \"CVE-2021-31974\",\n \"CVE-2021-31975\",\n \"CVE-2021-31976\",\n \"CVE-2021-31977\",\n \"CVE-2021-33739\",\n \"CVE-2021-33742\"\n );\n script_xref(name:\"MSKB\", value:\"5003637\");\n script_xref(name:\"MSFT\", value:\"MS21-5003637\");\n script_xref(name:\"IAVA\", value:\"2021-A-0280-S\");\n script_xref(name:\"IAVA\", value:\"2021-A-0279-S\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"KB5003637: Windows 10 version 2004 / Windows 10 version 20H2 / Windows 10 version 21H1 Security Update (June 2021)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Windows host is affected by multiple vulnerabilities.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Windows host is missing security update 5003637. It is, therefore, affected by multiple vulnerabilities\");\n script_set_attribute(attribute:\"see_also\", value:\"https://support.microsoft.com/en-us/help/5003637\");\n script_set_attribute(attribute:\"solution\", value:\n\"Apply Cumulative Update 5003637\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-31956\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-31962\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/06/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/06/08\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_set_attribute(attribute:\"stig_severity\", value:\"I\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"smb_check_rollup.nasl\", \"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, \"Host/patch_management_checks\");\n\n exit(0);\n}\n\ninclude('smb_func.inc');\ninclude('smb_hotfixes.inc');\ninclude('smb_hotfixes_fcheck.inc');\ninclude('smb_reg_query.inc');\n\nget_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');\n\nbulletin = 'MS21-06';\nkbs = make_list(\n '5003637'\n);\n\nif (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit('SMB/Registry/Enumerated');\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nshare = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif (\n smb_check_rollup(os:'10', \n sp:0,\n os_build:'19041',\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003637])\n\n|| smb_check_rollup(os:'10', \n sp:0,\n os_build:'19042',\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003637])\n\n|| smb_check_rollup(os:'10', \n sp:0,\n os_build:'19043',\n rollup_date:'06_2021',\n bulletin:bulletin,\n rollup_kb_list:[5003637])\n)\n{\n replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);\n hotfix_security_hole();\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, hotfix_get_audit_report());\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "malwarebytes": [{"lastseen": "2021-06-15T08:32:16", "description": "This patch Tuesday harvest was another big one. The Windows updates alone included seven zero-day vulnerability updates, two of them are actively being used in the wild by a group called PuzzleMaker, four others that have also been seen in the wild, plus one other zero-day vulnerability not known to have been actively exploited. Add to that 45 vulnerabilities that were labelled important, and security updates for Android, Adobe, SAP, and Cisco. You can practically see the IT staff scrambling to figure out what to do first and what needs to be checked before applying the patches.\n\n### PuzzleMaker\n\nSecurity researchers have discovered a new threat actor dubbed [PuzzleMaker](<https://securelist.com/puzzlemaker-chrome-zero-day-exploit-chain/102771/>), that was found using a chain of Google Chrome and Windows 10 zero-day exploits in highly targeted attacks against multiple companies worldwide. Unfortunately the researchers were unable to conclusively identify the Chrome vulnerability that was used (but they do have a suspect). The good news is that the two Windows vulnerabilities in the attack chain were included in the Windows 10 KB5003637 &amp; KB5003635 cumulative updates. These vulnerabilities are listed as [CVE-2021-31955](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31955>), a Windows kernel information disclosure vulnerability, and [CVE-2021-31956](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31956>), a Windows NTFS elevation of privilege vulnerability.\n\n### Other critical issues\n\nThe other critical patches made available by Microsoft this June include these actively exploited vulnerabilities:\n\n * [CVE-2021-33739](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33739>), a Microsoft DWM Core Library Elevation of Privilege Vulnerability.\n * [CVE-2021-33742](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33742>) Windows MSHTML Platform Remote Code Execution Vulnerability.\n * [CVE-2021-31199](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31199>) Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability.\n * [CVE-2021-31201](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31201>) another Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability.\n\nNot (yet) actively exploited zero day vulnerability:\n\n * [CVE-2021-31968](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31968>) Windows Remote Desktop Services Denial of Service Vulnerability.\n\nOther critical updates:\n\n * [CVE-2021-31963](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31963>) Microsoft SharePoint Server Remote Code Execution Vulnerability.\n * [CVE-2021-31959](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31959>) Scripting Engine Memory Corruption Vulnerability.\n * [CVE-2021-31967](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31967>) VP9 Video Extensions Remote Code Execution Vulnerability.\n * [CVE-2021-31985](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31985>) Microsoft Defender Remote Code Execution Vulnerability.\n * [CVE-2021-33742](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33742>) Windows MSHTML Platform Remote Code Execution Vulnerability.\n\n### Android\n\nThe [Android Security Bulletin of June 7](<https://source.android.com/security/bulletin/2021-06-01>) mentions a critical security vulnerability in the System component that &quot;could enable a remote attacker using a specially crafted transmission to execute arbitrary code within the context of a privileged process&quot;, which is as bad as it sounds. That vulnerability, listed as [CVE-2021-0507](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-0507>), could allow an attacker to take control of a targeted Android device unless it&#x27;s patched.\n\n### Cisco\n\nCisco has issued a [patch](<https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-ssl-decrypt-dos-DdyLuK6c>) for a vulnerability in the software-based SSL/TLS message handler of Cisco Firepower Threat Defense (FTD) Software, that could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message **through** an affected device. SSL/TLS messages sent **to** an affected device do not trigger this vulnerability. Cisco informs us that there is no workaround for this issue. Patching is the only solution.\n\n### SAP\n\nIn the SAP advisory for [Security Patch Day \u2013 June 2021](<https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999>) we can find two issues that are labelled as \u201cHot News\u201d:\n\n * [CVE-2021-276](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27602>)[0](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27602>)[2](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27602>) SAP Commerce, versions - 1808, 1811, 1905, 2005, 2011, Backoffice application allows certain authorized users to create source rules which are translated to drools rule when published to certain modules within the application. An attacker with this authorization can inject malicious code in the source rules and perform remote code execution enabling them to compromise the confidentiality, integrity and availability of the application.\n * [CVE-2021-27610](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27610>) Improper Authentication in SAP NetWeaver ABAP Server and ABAP Platform.\n\n### Adobe\n\nTo top things off, Adobe has released a giant [Patch ](<https://helpx.adobe.com/security.html>)[Tuesday security update](<https://helpx.adobe.com/security.html>) release that fixes vulnerabilities in ten applications, including Adobe Acrobat (of course), Reader, and Photoshop. Notably five vulnerabilities in Adobe Acrobat and Reader were fixed that address multiple critical vulnerabilities. Acrobat&#x27;s determination to cement its place as [the new Flash](<https://blog.malwarebytes.com/awareness/2021/01/adobe-flash-player-reaches-end-of-life/>) shows no sign of dimming.\n\nSuccessful exploitation could lead to arbitrary code execution in the context of the current user on both Windows and macOS. The same is true for two critical vulnerabilities in Photoshop that could lead to arbitrary code execution in the context of the current user.\n\n### CVE\n\nPublicly disclosed computer security flaws are listed in the Common Vulnerabilities and Exposures (CVE) database. Its goal is to make it easier to share data across separate vulnerability capabilities (tools, databases, and services). Which is why we try and link you to the Mitre list of CVE\u2019s where possible. It allows interested parties to find and compare vulnerabilities.\n\nHappy patching, everyone!\n\nThe post [Microsoft fixes seven zero-days, including two PuzzleMaker targets, Google fixes serious Android flaw](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/06/microsoft-fixes-seven-zero-days-including-two-puzzlemaker-targets-google-fixes-serious-android-flaw/>) appeared first on [Malwarebytes Labs](<https://blog.malwarebytes.com>).", "edition": 2, "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 7.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-06-09T14:50:52", "type": "malwarebytes", "title": "Microsoft fixes seven zero-days, including two PuzzleMaker targets, Google fixes serious Android flaw", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-0507", "CVE-2021-27602", "CVE-2021-27610", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31959", "CVE-2021-31963", "CVE-2021-31967", "CVE-2021-31968", "CVE-2021-31985", "CVE-2021-33739", "CVE-2021-33742"], "modified": "2021-06-09T14:50:52", "id": "MALWAREBYTES:84CB84E43C5F560FDE9B8B7E65F7C4A3", "href": "https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/06/microsoft-fixes-seven-zero-days-including-two-puzzlemaker-targets-google-fixes-serious-android-flaw/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "kaspersky": [{"lastseen": "2022-06-15T11:59:39", "description": "### *Detect date*:\n06/08/2021\n\n### *Severity*:\nCritical\n\n### *Description*:\nMultiple vulnerabilities were found in Microsoft Products (Extended Security Update). Malicious users can exploit these vulnerabilities to gain privileges, execute arbitrary code, cause denial of service, bypass security restrictions.\n\n### *Exploitation*:\nMalware exists for this vulnerability. Usually such malware is classified as Exploit. [More details](<https://threats.kaspersky.com/en/class/Exploit/>).\n\n### *Affected products*:\nWindows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) \nWindows 10 for x64-based Systems \nWindows 10 Version 1809 for x64-based Systems \nWindows 8.1 for 32-bit systems \nWindows 10 Version 1809 for ARM64-based Systems \nWindows 10 Version 20H2 for ARM64-based Systems \nWindows 10 Version 1909 for ARM64-based Systems \nWindows 10 Version 1607 for x64-based Systems \nWindows 10 Version 20H2 for 32-bit Systems \nWindows Server, version 2004 (Server Core installation) \nWindows 10 Version 1909 for 32-bit Systems \nWindows 10 Version 2004 for x64-based Systems \nWindows Server 2019 (Server Core installation) \nWindows Server 2012 R2 (Server Core installation) \nWindows Server 2008 for x64-based Systems Service Pack 2 \nWindows 10 Version 21H1 for 32-bit Systems \nWindows 10 Version 1909 for x64-based Systems \nWindows 10 Version 21H1 for ARM64-based Systems \nWindows Server 2012 \nWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) \nWindows 10 Version 21H1 for x64-based Systems \nWindows Server 2012 (Server Core installation) \nWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) \nWindows RT 8.1 \nWindows 7 for 32-bit Systems Service Pack 1 \nWindows 10 for 32-bit Systems \nWindows Server 2019 \nWindows 10 Version 1607 for 32-bit Systems \nWindows Server 2016 \nWindows Server 2008 for 32-bit Systems Service Pack 2 \nWindows 10 Version 1809 for 32-bit Systems \nWindows 10 Version 20H2 for x64-based Systems \nWindows 10 Version 2004 for ARM64-based Systems \nWindows 10 Version 2004 for 32-bit Systems \nWindows Server 2012 R2 \nWindows Server 2016 (Server Core installation) \nWindows Server 2008 R2 for x64-based Systems Service Pack 1 \nWindows 7 for x64-based Systems Service Pack 1 \nWindows Server, version 20H2 (Server Core Installation) \nWindows 8.1 for x64-based systems\n\n### *Solution*:\nInstall necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)\n\n### *Original advisories*:\n[CVE-2021-31956](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31956>) \n[CVE-2021-31973](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31973>) \n[CVE-2021-33742](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-33742>) \n[CVE-2021-31954](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31954>) \n[CVE-2021-31201](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31201>) \n[CVE-2021-31199](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31199>) \n[CVE-2021-1675](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-1675>) \n[CVE-2021-31953](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31953>) \n[CVE-2021-31968](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31968>) \n[CVE-2021-31958](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31958>) \n[CVE-2021-31971](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31971>) \n[CVE-2021-26414](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-26414>) \n[CVE-2021-31959](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31959>) \n[CVE-2021-31962](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31962>) \n\n\n### *Impacts*:\nACE \n\n### *Related products*:\n[Microsoft Windows](<https://threats.kaspersky.com/en/product/Microsoft-Windows/>)\n\n### *Microsoft official advisories*:\n\n\n### *KB list*:\n[5003695](<http://support.microsoft.com/kb/5003695>) \n[5003636](<http://support.microsoft.com/kb/5003636>) \n[5003661](<http://support.microsoft.com/kb/5003661>) \n[5003667](<http://support.microsoft.com/kb/5003667>) \n[5003694](<http://support.microsoft.com/kb/5003694>) \n[5014742](<http://support.microsoft.com/kb/5014742>) \n[5014748](<http://support.microsoft.com/kb/5014748>) \n[5014752](<http://support.microsoft.com/kb/5014752>) \n[5014743](<http://support.microsoft.com/kb/5014743>)", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-06-08T00:00:00", "type": "kaspersky", "title": "KLA12198 Multiple vulnerabilities in Microsoft Products (ESU)", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31962", "CVE-2021-31968", "CVE-2021-31971", "CVE-2021-31973", "CVE-2021-33742"], "modified": "2022-06-15T00:00:00", "id": "KLA12198", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12198/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-07-01T08:21:52", "description": "### *Detect date*:\n06/08/2021\n\n### *Severity*:\nCritical\n\n### *Description*:\nMultiple vulnerabilities were found in Microsoft Windows. Malicious users can exploit these vulnerabilities to obtain sensitive information, execute arbitrary code, gain privileges, bypass security restrictions, cause denial of service.\n\n### *Exploitation*:\nMalware exists for this vulnerability. Usually such malware is classified as Exploit. [More details](<https://threats.kaspersky.com/en/class/Exploit/>).\n\n### *Affected products*:\nWindows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) \nWindows 10 for x64-based Systems \nWindows 10 Version 1809 for x64-based Systems \nWindows 8.1 for 32-bit systems \nWindows 10 Version 1809 for ARM64-based Systems \nWindows 10 Version 20H2 for ARM64-based Systems \nWindows 10 Version 1909 for ARM64-based Systems \nWindows 10 Version 20H2 for 32-bit Systems \nWindows Server, version 2004 (Server Core installation) \nWindows 10 Version 1607 for x64-based Systems \nWindows 10 Version 1909 for 32-bit Systems \nVP9 Video Extensions \nWindows 10 Version 2004 for x64-based Systems \nWindows Server 2019 (Server Core installation) \nWindows Server 2012 R2 (Server Core installation) \nWindows Server 2008 for x64-based Systems Service Pack 2 \nWindows 10 Version 21H1 for 32-bit Systems \nWindows 10 Version 1909 for x64-based Systems \nWindows 10 Version 21H1 for ARM64-based Systems \nWindows Server 2012 \nWindows 10 Version 21H1 for x64-based Systems \nWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) \nWindows Server 2012 (Server Core installation) \nWindows RT 8.1 \nWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) \nWindows 10 for 32-bit Systems \nWindows 7 for 32-bit Systems Service Pack 1 \nWindows Server 2019 \nWindows 10 Version 1607 for 32-bit Systems \nWindows Server 2016 \nWindows Server 2008 for 32-bit Systems Service Pack 2 \nWindows 10 Version 1809 for 32-bit Systems \nWindows 10 Version 20H2 for x64-based Systems \nWindows 10 Version 2004 for ARM64-based Systems \nWindows 10 Version 2004 for 32-bit Systems \nWindows Server 2012 R2 \nWindows Server 2016 (Server Core installation) \nWindows Server 2008 R2 for x64-based Systems Service Pack 1 \nWindows 7 for x64-based Systems Service Pack 1 \nWindows Server, version 20H2 (Server Core Installation) \nWindows 8.1 for x64-based systems\n\n### *Solution*:\nInstall necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)\n\n### *Original advisories*:\n[CVE-2021-31975](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31975>) \n[CVE-2021-31967](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31967>) \n[CVE-2021-31973](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31973>) \n[CVE-2021-31972](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31972>) \n[CVE-2021-33742](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-33742>) \n[CVE-2021-31976](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31976>) \n[CVE-2021-31199](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31199>) \n[CVE-2021-31201](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31201>) \n[CVE-2021-31970](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31970>) \n[CVE-2021-33739](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-33739>) \n[CVE-2021-31971](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31971>) \n[CVE-2021-31951](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31951>) \n[CVE-2021-26414](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-26414>) \n[CVE-2021-31952](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31952>) \n[CVE-2021-31974](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31974>) \n[CVE-2021-31955](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31955>) \n[CVE-2021-31962](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31962>) \n[CVE-2021-31956](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31956>) \n[CVE-2021-31954](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31954>) \n[CVE-2021-1675](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-1675>) \n[CVE-2021-31953](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31953>) \n[CVE-2021-31960](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31960>) \n[CVE-2021-31968](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31968>) \n[CVE-2021-31958](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31958>) \n[CVE-2021-31959](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31959>) \n[CVE-2021-31969](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31969>) \n[CVE-2021-31977](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31977>) \n\n\n### *Impacts*:\nACE \n\n### *Related products*:\n[Microsoft Windows](<https://threats.kaspersky.com/en/product/Microsoft-Windows/>)\n\n### *CVE-IDS*:\n[CVE-2021-31956](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31956>)9.3Critical \n[CVE-2021-31973](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31973>)4.6Warning \n[CVE-2021-33742](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33742>)6.8High \n[CVE-2021-31954](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31954>)7.2High \n[CVE-2021-31201](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31201>)4.6Warning \n[CVE-2021-31199](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31199>)4.6Warning \n[CVE-2021-1675](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1675>)9.3Critical \n[CVE-2021-31953](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31953>)4.6Warning \n[CVE-2021-31968](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31968>)5.0Critical \n[CVE-2021-31958](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31958>)6.8High \n[CVE-2021-31971](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31971>)6.8High \n[CVE-2021-26414](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26414>)4.3Warning \n[CVE-2021-31959](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31959>)6.8High \n[CVE-2021-31962](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31962>)7.5Critical \n[CVE-2021-31975](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31975>)7.8Critical \n[CVE-2021-31967](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31967>)6.8High \n[CVE-2021-31972](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31972>)2.1Warning \n[CVE-2021-31976](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31976>)7.8Critical \n[CVE-2021-31970](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31970>)2.1Warning \n[CVE-2021-33739](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33739>)4.6Warning \n[CVE-2021-31951](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31951>)7.2High \n[CVE-2021-31952](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31952>)7.2High \n[CVE-2021-31974](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31974>)5.0Critical \n[CVE-2021-31955](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31955>)2.1Warning \n[CVE-2021-31960](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31960>)2.1Warning \n[CVE-2021-31969](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31969>)4.6Warning \n[CVE-2021-31977](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31977>)5.0Critical\n\n### *Microsoft official advisories*:\n\n\n### *KB list*:\n[5003636](<http://support.microsoft.com/kb/5003636>) \n[5003681](<http://support.microsoft.com/kb/5003681>) \n[5003637](<http://support.microsoft.com/kb/5003637>) \n[5003671](<http://support.microsoft.com/kb/5003671>) \n[5003696](<http://support.microsoft.com/kb/5003696>) \n[5003646](<http://support.microsoft.com/kb/5003646>) \n[5003638](<http://support.microsoft.com/kb/5003638>) \n[5003697](<http://support.microsoft.com/kb/5003697>) \n[5003635](<http://support.microsoft.com/kb/5003635>) \n[5003687](<http://support.microsoft.com/kb/5003687>) \n[5014702](<http://support.microsoft.com/kb/5014702>) \n[5014699](<http://support.microsoft.com/kb/5014699>) \n[5014692](<http://support.microsoft.com/kb/5014692>) \n[5014710](<http://support.microsoft.com/kb/5014710>) \n[5014747](<http://support.microsoft.com/kb/5014747>) \n[5014738](<http://support.microsoft.com/kb/5014738>) \n[5014741](<http://support.microsoft.com/kb/5014741>) \n[5014697](<http://support.microsoft.com/kb/5014697>) \n[5014746](<http://support.microsoft.com/kb/5014746>) \n[5014701](<http://support.microsoft.com/kb/5014701>)", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-06-08T00:00:00", "type": "kaspersky", "title": "KLA12202 Multiple vulnerabilities in Microsoft Windows", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31951", "CVE-2021-31952", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31960", "CVE-2021-31962", "CVE-2021-31967", "CVE-2021-31968", "CVE-2021-31969", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31972", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-31977", "CVE-2021-33739", "CVE-2021-33742"], "modified": "2022-06-30T00:00:00", "id": "KLA12202", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12202/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "avleonov": [{"lastseen": "2021-07-28T14:34:07", "description": "Hello everyone! Let&#x27;s now talk about Microsoft Patch Tuesday vulnerabilities for the second quarter of 2021. April, May and June. Not the most exciting topic, I agree. I am surprised that someone is reading or watching this. For me personally, this is a kind of tradition. Plus this is an opportunity to try Vulristics in action and find possible problems. It is also interesting to see what VM vendors considered critical back then and what actually became critical. I will try to keep this video short.\n\nFirst of all, let&#x27;s take a look at the vulnerabilities from the April Patch Tuesday. 108 vulnerabilities, 55 of them are RCEs. Half of these RCEs (27) are weird RPC vulnerabilities. &quot;Researcher who reported these bugs certainly found quite the attack surface&quot;. The most critical vulnerability is RCE in Exchange (CVE-2021-28480). This is not ProxyLogon, this is another vulnerability. ProxyLogon was in March. And this vulnerability is simply related to ProxyLogon, so it is believed that it is exploited in the wild as well. In the second place this Win32k Elevation of Privilege (CVE-2021-28310). It is clearly mentioned in several sources as being used in real attacks. &quot;Bugs of this nature are typically combined with other bugs, such as a browser bug or PDF exploit, to take over a system&quot;. And the only vulnerability with a public exploit is the Azure DevOps Server Spoofing (CVE-2021-28459). Previously known as Team Foundation Server (\u200bTFS), Azure DevOps Server is a set of collaborative software development tools. It is hosted on-premises. Therefore, this vulnerability can be useful for attackers.\n\nLet&#x27;s take a look at May. A very small Patch Tuesday. There are only 55 vulnerabilities. Vendors mainly wrote about HTTP Protocol Stack Remote Code Execution Vulnerability. But no catastrophe happened. &quot;tenable: On May 16, security researcher 0vercl0k published PoC code to github for CVE-2021-31166. Based on our analysis, this exploit could only result in a denial of service (DoS) condition&quot;. VM vendors also wrote a lot about Hyper-V Remote Code Execution Vulnerability. But there was no real exploitation there either. But a real exploit appeared for Remote Code Execution in Microsoft SharePoint (CVE-2021-31181). And exploitation in the wild was mentioned for Windows Container Manager Service (CVE-2021-31167), which no VM vendor mentioned at all. But the exploitation was &quot;Personally observed in an environment&quot;, so this may not be accurate. Also take a look at Memory Corruption in Microsoft Scripting Engine (CVE-2021-26419) with a public exploit and Information Disclosure in Windows Wireless Networking (CVE-2020-24587) with a sign of exploitation in the wild (but this also may not be accurate).\n\nAnd finally June. There are even fewer vulnerabilities, only 49. But there are a lot of them with a sign of exploitation in the wild. And this information is directly from Microsoft. Windows MSHTML Platform Remote Code Execution (CVE-2021-33742). Elevations of Privilege in Windows NTFS (CVE-2021-31956), Microsoft Enhanced Cryptographic Provider (CVE-2021-31199, CVE-2021-31201), Microsoft DWM Core Library (CVE-2021-33739). Windows Kernel Information Disclosure (CVE-2021-31955). Much more than usual. VM vendors have written the most about EoP in Windows NTFS (CVE-2021-31956). Do you know what vulnerability they didn&#x27;t highlight at all? Elevations of Privilege and later Remote Code Execution in Windows Print Spooler (CVE-2021-1675). The one that started the PrintNightmare story. Very ironic. Also pay attention to Spoofing in Microsoft SharePoint (CVE-2021-31950) for which there is a public Server-Side Request Forgery exploit. VM vendors also did not write anything about this vulnerability in their reviews.\n\nFull Vulristics reports:\n\n * [ms_patch_tuesday_april2021_report_avleonov_comments.html](<https://avleonov.com/vulristics_reports/ms_patch_tuesday_april2021_report_avleonov_comments.html>)\n * [ms_patch_tuesday_may2021_report_avleonov_comments.html](<https://avleonov.com/vulristics_reports/ms_patch_tuesday_may2021_report_avleonov_comments.html>)\n * [ms_patch_tuesday_june2021_report_avleonov_comments.html](<https://avleonov.com/vulristics_reports/ms_patch_tuesday_june2021_report_avleonov_comments.html>)\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-07-10T00:14:59", "type": "avleonov", "title": "Vulristics: Microsoft Patch Tuesdays Q2 2021", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-24587", "CVE-2021-1675", "CVE-2021-26419", "CVE-2021-28310", "CVE-2021-28459", "CVE-2021-28480", "CVE-2021-31166", "CVE-2021-31167", "CVE-2021-31181", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31950", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-33739", "CVE-2021-33742"], "modified": "2021-07-10T00:14:59", "id": "AVLEONOV:9D3D76F4CC74C7ABB8000BC6AFB2A2CE", "href": "http://feedproxy.google.com/~r/avleonov/~3/zKo35MmSBcA/", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "securelist": [{"lastseen": "2021-08-12T10:37:29", "description": "\n\n_These statistics are based on detection verdicts of Kaspersky products received from users who consented to providing statistical data._\n\n## Quarterly figures\n\nAccording to Kaspersky Security Network, in Q2 2021:\n\n * Kaspersky solutions blocked 1,686,025,551 attacks from online resources across the globe.\n * Web antivirus recognized 675,832,360 unique URLs as malicious.\n * Attempts to run malware for stealing money from online bank accounts were stopped on the computers of 119,252 unique users.\n * Ransomware attacks were defeated on the computers of 97,451 unique users.\n * Our file antivirus detected 68,294,298 unique malicious and potentially unwanted objects.\n\n## Financial threats\n\n### Financial threat statistics\n\nIn Q2 2021, Kaspersky solutions blocked the launch of at least one piece of banking malware on the computers of 119,252 unique users.\n\n_Number of unique users attacked by financial malware, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11140610/01-en-malware-report-q2-2021-graphs-pc.png>))_\n\n**Geography of financial malware attacks**\n\n_To evaluate and compare the risk of being infected by banking Trojans and ATM/POS malware worldwide, for each country we calculated the share of users of Kaspersky products who faced this threat during the reporting period as a percentage of all users of our products in that country._\n\n_Geography of financial malware attacks, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11140636/02-en-malware-report-q2-2021-graphs-pc.png>))_\n\n**Top 10 countries by share of attacked users**\n\n| **Country*** | **%**** \n---|---|--- \n1 | Turkmenistan | 5.8 \n2 | Tajikistan | 5.0 \n3 | Afghanistan | 4.2 \n4 | Uzbekistan | 3.3 \n5 | Lithuania | 2.9 \n6 | Sudan | 2.8 \n7 | Paraguay | 2.5 \n8 | Zimbabwe | 1.6 \n9 | Costa Rica | 1.5 \n10 | Yemen | 1.5 \n \n_* Excluded are countries with relatively few Kaspersky product users (under 10,000)._ \n_** Unique users whose computers were targeted by financial malware as a percentage of all unique users of Kaspersky products in the country._\n\nLast quarter, as per tradition, the most widespread family of bankers was ZeuS/Zbot (17.8%), but its share in Q2 almost halved, by 13 p.p. Second place again went to the CliptoShuffler family (9.9%), whose share also fell, by 6 p.p. The Top 3 is rounded out by SpyEye (8.8%), which added 5 p.p., climbing from the eighth place. Note the disappearance of Emotet from the Top 10, which was predictable given the liquidation of its infrastructure in the previous quarter.\n\n**Top 10 banking malware families**\n\n| Name | Verdicts | %* \n---|---|---|--- \n1 | Zbot | Trojan.Win32.Zbot | 17.8 \n2 | CliptoShuffler | Trojan-Banker.Win32.CliptoShuffler | 9.9 \n3 | SpyEye | Trojan-Spy.Win32.SpyEye | 8.8 \n4 | Trickster | Trojan.Win32.Trickster | 5.5 \n5 | RTM | Trojan-Banker.Win32.RTM | 3.8 \n6 | Danabot | Trojan-Banker.Win32.Danabot | 3.6 \n7 | Nimnul | Virus.Win32.Nimnul | 3.3 \n8 | Cridex | Backdoor.Win32.Cridex | 2.3 \n9 | Nymaim | Trojan.Win32.Nymaim | 1.9 \n10 | Neurevt | Trojan.Win32.Neurevt | 1.6 \n \n_* Unique users who encountered this malware family as a percentage of all users attacked by financial malware._\n\n## Ransomware programs\n\n### Quarterly trends and highlights\n\n#### Attack on Colonial Pipeline and closure of DarkSide\n\nRansomware attacks on large organizations continued in Q2. Perhaps the most notable event of the quarter was the [attack by the DarkSide group on Colonial Pipeline](<https://ics-cert.kaspersky.com/reports/2021/05/21/darkchronicles-the-consequences-of-the-colonial-pipeline-attack/>), one of the largest fuel pipeline operators in the US. The incident led to fuel outages and a state of emergency in four states. The results of the investigation, which involved the FBI and several other US government agencies, was reported to US President Joe Biden.\n\nFor the cybercriminals, this sudden notoriety proved unwelcome. In their blog, DarkSide&#x27;s creators heaped the blame on third-party operators. Another post was published stating that DarkSide&#x27;s developers had lost access to part of their infrastructure and were shutting down the service and the affiliate program.\n\nAnother consequence of this high-profile incident was a new rule on the Russian-language forum XSS, where many developers of ransomware, including REvil (also known as Sodinokibi or Sodin), LockBit and Netwalker, advertise their affiliate programs. The new rule forbade the advertising and selling of any ransomware programs on the site. The administrators of other forums popular with cybercriminals took similar decisions.\n\n#### Closure of Avaddon\n\nAnother family of targeted ransomware whose owners shut up shop in Q2 is Avaddon. At the same time as announcing the shutdown, the attackers [provided](<https://www.bleepingcomputer.com/news/security/avaddon-ransomware-shuts-down-and-releases-decryption-keys/>) Bleeping Computer with the decryption keys.\n\n#### Clash with Clop\n\nUkrainian police [searched](<https://cyberpolice.gov.ua/news/kiberpolicziya-vykryla-xakerske-ugrupovannya-u-rozpovsyudzhenni-virusu-shyfruvalnyka-ta-nanesenni-inozemnym-kompaniyam-piv-milyarda-dolariv-zbytkiv-2402/>) and arrested members of the Clop group. Law enforcement agencies also deactivated part of the cybercriminals&#x27; infrastructure, which [did not](<https://www.bleepingcomputer.com/news/security/clop-ransomware-is-back-in-business-after-recent-arrests/>), however, stop the group&#x27;s activities.\n\n#### Attacks on NAS devices\n\nIn Q2, cybercriminals stepped up their attacks on network-attached storage (NAS) devices. There appeared the new [Qlocker](<https://support.qnap.ru/hc/ru/articles/360021328659-\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c-Qnap-Ransomware-Qlocker>) family, which packs user files into a password-protected 7zip archive, plus our old friends [ech0raix](<https://www.qnap.com/en/security-advisory/QSA-21-18>) and [AgeLocker](<https://www.qnap.com/en-us/security-advisory/QSA-21-15>) began to gather steam.\n\n### Number of new ransomware modifications\n\nIn Q2 2021, we detected 14 new ransomware families and 3,905 new modifications of this malware type.\n\n_Number of new ransomware modifications, Q2 2020 \u2014 Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141411/03-en-ru-es-malware-report-q2-2021-graphs-pc.png>))_\n\n### Number of users attacked by ransomware Trojans\n\nIn Q2 2021, Kaspersky products and technologies protected 97,451 users from ransomware attacks.\n\n_Number of unique users attacked by ransomware Trojans, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141438/04-en-malware-report-q2-2021-graphs-pc.png>))_\n\n### Geography of ransomware attacks\n\n_Geography of attacks by ransomware Trojans, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141505/05-en-malware-report-q2-2021-graphs-pc.png>))_\n\n**Top 10 countries attacked by ransomware Trojans**\n\n| **Country*** | **%**** \n---|---|--- \n1 | Bangladesh | 1.85 \n2 | Ethiopia | 0.51 \n3 | China | 0.49 \n4 | Pakistan | 0.40 \n5 | Egypt | 0.38 \n6 | Indonesia | 0.36 \n7 | Afghanistan | 0.36 \n8 | Vietnam | 0.35 \n9 | Myanmar | 0.35 \n10 | Nepal | 0.33 \n \n_* Excluded are countries with relatively few Kaspersky users (under 50,000)._ \n_** Unique users attacked by ransomware Trojans as a percentage of all unique users of Kaspersky products in the country._\n\n### Top 10 most common families of ransomware Trojans\n\n| **Name** | **Verdicts** | **%*** \n---|---|---|--- \n1 | WannaCry | Trojan-Ransom.Win32.Wanna | 20.66 \n2 | Stop | Trojan-Ransom.Win32.Stop | 19.70 \n3 | (generic verdict) | Trojan-Ransom.Win32.Gen | 9.10 \n4 | (generic verdict) | Trojan-Ransom.Win32.Crypren | 6.37 \n5 | (generic verdict) | Trojan-Ransom.Win32.Phny | 6.08 \n6 | (generic verdict) | Trojan-Ransom.Win32.Encoder | 5.87 \n7 | (generic verdict) | Trojan-Ransom.Win32.Agent | 5.19 \n8 | PolyRansom/VirLock | Virus.Win32.Polyransom / Trojan-Ransom.Win32.PolyRansom | 2.39 \n9 | (generic verdict) | Trojan-Ransom.Win32.Crypmod | 1.48 \n10 | (generic verdict) | Trojan-Ransom.MSIL.Encoder | 1.26 \n \n_* Unique Kaspersky users attacked by this family of ransomware Trojans as a percentage of all users attacked by such malware._\n\n## Miners\n\n### Number of new miner modifications\n\nIn Q2 2021, Kaspersky solutions detected 31,443 new modifications of miners.\n\n_Number of new miner modifications, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141534/06-en-malware-report-q2-2021-graphs-pc.png>))_\n\n### Number of users attacked by miners\n\nIn Q2, we detected attacks using miners on the computers of 363,516 unique users of Kaspersky products worldwide. At the same time, the number of attacked users gradually decreased during the quarter; in other words, the downward trend in miner activity returned.\n\n_Number of unique users attacked by miners, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141602/07-en-malware-report-q2-2021-graphs-pc.png>))_\n\n### Geography of miner attacks\n\n_Geography of miner attacks, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141627/08-en-malware-report-q2-2021-graphs-pc.png>))_\n\n**Top 10 countries attacked by miners**\n\n| **Country*** | **%**** \n---|---|--- \n1 | Afghanistan | 3.99 \n2 | Ethiopia | 2.66 \n3 | Rwanda | 2.19 \n4 | Uzbekistan | 1.61 \n5 | Mozambique | 1.40 \n6 | Sri Lanka | 1.35 \n7 | Vietnam | 1.33 \n8 | Kazakhstan | 1.31 \n9 | Azerbaijan | 1.21 \n10 | Tanzania | 1.19 \n \n_* Excluded are countries with relatively few users of Kaspersky products (under 50,000)._ \n_** Unique users attacked by miners as a percentage of all unique users of Kaspersky products in the country._\n\n## Vulnerable applications used by cybercriminals during cyberattacks\n\nQ2 2021 injected some minor changes into our statistics on exploits used by cybercriminals. In particular, the share of exploits for Microsoft Office dropped to 55.81% of the total number of threats of this type. Conversely, the share of exploits attacking popular browsers rose by roughly 3 p.p. to 29.13%.\n\n_Distribution of exploits used by cybercriminals, by type of attacked application, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141656/09-en-malware-report-q2-2021-graphs-pc.png>))_\n\nMicrosoft Office exploits most often tried to utilize the memory corruption vulnerability [CVE-2018-0802](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0802>). This error can occur in the Equation Editor component when processing objects in a specially constructed document, and its exploitation causes a buffer overflow and allows an attacker to execute arbitrary code. Also seen in Q2 was the similar vulnerability [CVE-2017-11882](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11882>), which causes a buffer overflow on the stack in the same component. Lastly, we spotted an attempt to exploit the [CVE-2017-8570](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8570>) vulnerability, which, like other bugs in Microsoft Office, permits the execution of arbitrary code in vulnerable versions of the software.\n\nQ2 2021 was marked by the emergence of several dangerous vulnerabilities in various versions of the Microsoft Windows family, many of them observed in the wild. Kaspersky alone found three vulnerabilities used in targeted attacks:\n\n * [CVE-2021-28310](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28310>) \u2014 an out-of-bounds (OOB) write vulnerability in the Microsoft DWM Core library used in Desktop Window Manager. Due to insufficient checks in the data array code, an unprivileged user using the DirectComposition API can write their own data to the memory areas they control. As a result, the data of real objects is corrupted, which, in turn, can lead to the execution of arbitrary code;\n * [CVE-2021-31955](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955>) \u2014 an information disclosure vulnerability that exposes information about kernel objects. Together with other exploits, it allows an intruder to attack a vulnerable system;\n * [CVE-2021-31956](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31956>) \u2014 a vulnerability in the ntfs.sys file system driver. It causes incorrect checking of transferred sizes, allowing an attacker to inflict a buffer overflow by manipulating parameters.\n\nYou can read more about these vulnerabilities and their exploitation in our articles [PuzzleMaker attacks with Chrome zero-day exploit chain](<https://securelist.com/puzzlemaker-chrome-zero-day-exploit-chain/102771/>) and [Zero-day vulnerability in Desktop Window Manager (CVE-2021-28310) used in the wild](<https://securelist.com/zero-day-vulnerability-in-desktop-window-manager-cve-2021-28310-used-in-the-wild/101898/>).\n\nOther security researchers found a number of browser vulnerabilities, including:\n\n * [CVE-2021-33742](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742>) \u2014 a bug in the Microsoft Trident browser engine (MSHTML) that allows writing data outside the memory of operable objects;\n * Three Google Chrome vulnerabilities found in the wild that exploit bugs in various browser components: [CVE-2021-30551](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30551>) \u2014 a data type confusion vulnerability in the V8 scripting engine; [CVE-2021-30554](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30554>) \u2014 a use-after-free vulnerability in the WebGL component; and [CVE-2021-21220](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21220>) \u2014 a heap corruption vulnerability;\n * Three vulnerabilities in the WebKit browser engine, now used mainly in Apple products (for example, the Safari browser), were also found in the wild: [CVE-2021-30661](<https://support.apple.com/en-us/HT212317>) \u2014 a use-after-free vulnerability; [CVE-2021-30665](<https://support.apple.com/en-us/HT212336>) \u2014 a memory corruption vulnerability; and [CVE-2021-30663](<https://support.apple.com/en-us/HT212336>) \u2014 an integer overflow vulnerability.\n\nAll of these vulnerabilities allow a cybercriminal to attack a system unnoticed if the user opens a malicious site in an unpatched browser.\n\nIn Q2, two similar vulnerabilities were found ([CVE-2021-31201](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31201>) and [CVE-2021-31199](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31199>)), exploiting integer overflow bugs in the Microsoft Windows Cryptographic Provider component. Using these vulnerabilities, an attacker could prepare a special signed document that would ultimately allow the execution of arbitrary code in the context of an application that uses the vulnerable library.\n\nBut the biggest talking point of the quarter was the [critical vulnerabilities CVE-2021-1675 and CVE-2021-34527](<https://securelist.com/quick-look-at-cve-2021-1675-cve-2021-34527-aka-printnightmare/103123/>) in the Microsoft Windows Print Spooler, in both server and client editions. Their discovery, together with a [proof of concept](<https://encyclopedia.kaspersky.com/glossary/poc-proof-of-concept/?utm_source=securelist&utm_medium=blog&utm_campaign=termin-explanation>), caused a stir in both the expert community and the media, which dubbed one of the vulnerabilities PrintNightmare. Exploitation of these vulnerabilities is quite trivial, since Print Spooler is enabled by default in Windows, and the methods of compromise are available even to unprivileged users, including remote ones. In the latter case, the RPC mechanism can be leveraged for compromise. As a result, an attacker with low-level access can take over not only a local machine, but also the domain controller, if these systems have not been updated, or available [risk mitigation methods](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527>) against these vulnerabilities have not been applied.\n\nAmong the network threats in Q2 2021, attempts to brute-force passwords in popular protocols and services (RDP, SSH, MSSQL, etc.) are still current. Attacks using EternalBlue, EternalRomance and other such exploits remain prevalent, although their share is gradually shrinking. New attacks include [CVE-2021-31166](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31166>), a vulnerability in the Microsoft Windows HTTP protocol stack that causes a denial of service during processing of web-server requests. To gain control over target systems, attackers are also using the previously found NetLogon vulnerability ([CVE-2020-1472](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1472>)) and, for servers running Microsoft Exchange Server, vulnerabilities recently discovered while researching targeted attacks by the [HAFNIUM](<https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/>) group.\n\n## Attacks on macOS\n\nAs for threats to the macOS platform, Q2 will be remembered primarily for the appearance of new samples of the XCSSET Trojan. Designed to steal data from browsers and other applications, the malware is notable for spreading itself through infecting projects in the Xcode development environment. The Trojan takes the form of a bash script packed with the SHC utility, allowing it to evade macOS protection, which does not block script execution. During execution of the script, the SHC utility uses the RC4 algorithm to decrypt the payload, which, in turn, downloads additional modules.\n\n**Top 20 threats for macOS**\n\n| **Verdict** | **%*** \n---|---|--- \n1 | AdWare.OSX.Pirrit.j | 14.47 \n2 | AdWare.OSX.Pirrit.ac | 13.89 \n3 | AdWare.OSX.Pirrit.o | 10.21 \n4 | AdWare.OSX.Pirrit.ae | 7.96 \n5 | AdWare.OSX.Bnodlero.at | 7.94 \n6 | Monitor.OSX.HistGrabber.b | 7.82 \n7 | Trojan-Downloader.OSX.Shlayer.a | 7.69 \n8 | AdWare.OSX.Bnodlero.bg | 7.28 \n9 | AdWare.OSX.Pirrit.aa | 6.84 \n10 | AdWare.OSX.Pirrit.gen | 6.44 \n11 | AdWare.OSX.Cimpli.m | 5.53 \n12 | Trojan-Downloader.OSX.Agent.h | 5.50 \n13 | Backdoor.OSX.Agent.z | 4.64 \n14 | Trojan-Downloader.OSX.Lador.a | 3.92 \n15 | AdWare.OSX.Bnodlero.t | 3.64 \n16 | AdWare.OSX.Bnodlero.bc | 3.36 \n17 | AdWare.OSX.Ketin.h | 3.25 \n18 | AdWare.OSX.Bnodlero.ay | 3.08 \n19 | AdWare.OSX.Pirrit.q | 2.84 \n20 | AdWare.OSX.Pirrit.x | 2.56 \n \n_* Unique users who encountered this malware as a percentage of all users of Kaspersky security solutions for macOS who were attacked._\n\nAs in the previous quarter, a total of 15 of the Top 20 threats for macOS are adware programs. The Pirrit and Bnodlero families have traditionally stood out from the crowd, with the former accounting for two-thirds of the total number of threats.\n\n### Geography of threats for macOS\n\n_Geography of threats for macOS, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141728/10-en-malware-report-q2-2021-graphs-pc.png>))_\n\n**Top 10 countries by share of attacked users**\n\n| **Country*** | **%**** \n---|---|--- \n1 | India | 3.77 \n2 | France | 3.67 \n3 | Spain | 3.45 \n4 | Canada | 3.08 \n5 | Italy | 3.00 \n6 | Mexico | 2.88 \n7 | Brazil | 2.82 \n8 | USA | 2.69 \n9 | Australia | 2.53 \n10 | Great Britain | 2.33 \n \n_* Excluded from the rating are countries with relatively few users of Kaspersky security solutions for macOS (under 10,000)._ \n_** Unique users attacked as a percentage of all users of Kaspersky security solutions for macOS in the country._\n\nIn Q2 2021, first place by share of attacked users went to India (3.77%), where adware applications from the Pirrit family were most frequently encountered. A comparable situation was observed in France (3.67%) and Spain (3.45%), which ranked second and third, respectively.\n\n## IoT attacks\n\n### IoT threat statistics\n\nIn Q2 2021, as before, most of the attacks on Kaspersky traps came via the Telnet protocol.\n\nTelnet | 70.55% \n---|--- \nSSH | 29.45% \n \n_Distribution of attacked services by number of unique IP addresses of devices that carried out attacks, Q2 2021_\n\nThe statistics for cybercriminal working sessions with Kaspersky honeypots show similar Telnet dominance.\n\nTelnet | 63.06% \n---|--- \nSSH | 36.94% \n \n_Distribution of cybercriminal working sessions with Kaspersky traps, Q2 2021_\n\n**Top 10 threats delivered to IoT devices via Telnet**\n\n| **Verdict** | **%*** \n---|---|--- \n1 | Backdoor.Linux.Mirai.b | 30.25% \n2 | Trojan-Downloader.Linux.NyaDrop.b | 27.93% \n3 | Backdoor.Linux.Mirai.ba | 5.82% \n4 | Backdoor.Linux.Agent.bc | 5.10% \n5 | Backdoor.Linux.Gafgyt.a | 4.44% \n6 | Trojan-Downloader.Shell.Agent.p | 3.22% \n7 | RiskTool.Linux.BitCoinMiner.b | 2.90% \n8 | Backdoor.Linux.Gafgyt.bj | 2.47% \n9 | Backdoor.Linux.Mirai.cw | 2.52% \n10 | Backdoor.Linux.Mirai.ad | 2.28% \n \n_* Share of each threat delivered to infected devices as a result of a successful Telnet attack out of the total number of delivered threats._\n\nDetailed IoT threat statistics are published in our Q2 2021 DDoS report: <https://securelist.com/ddos-attacks-in-q2-2021/103424/#attacks-on-iot-honeypots>\n\n## Attacks via web resources\n\n_The statistics in this section are based on Web Anti-Virus, which protects users when malicious objects are downloaded from malicious/infected web pages. Cybercriminals create such sites on purpose and web resources with user-created content (for example, forums), as well as hacked legitimate resources, can be infected._\n\n### Countries that serve as sources of web-based attacks: Top 10\n\n_The following statistics show the distribution by country of the sources of Internet attacks blocked by Kaspersky products on user computers (web pages with redirects to exploits, sites hosting malicious programs, botnet C&amp;C centers, etc.). Any unique host could be the source of one or more web-based attacks._\n\n_To determine the geographic source of web attacks, the GeoIP technique was used to match the domain name to the real IP address at which the domain is hosted._\n\nIn Q2 2021, Kaspersky solutions blocked 1,686,025,551 attacks from online resources located across the globe. 675,832,360 unique URLs were recognized as malicious by Web Anti-Virus components.\n\n_Distribution of web-attack sources by country, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141800/13-en-malware-report-q2-2021-graphs-pc.png>))_\n\n### Countries where users faced the greatest risk of online infection\n\nTo assess the risk of online infection faced by users in different countries, for each country we calculated the percentage of Kaspersky users on whose computers Web Anti-Virus was triggered during the quarter. The resulting data provides an indication of the aggressiveness of the environment in which computers operate in different countries.\n\nThis rating only includes attacks by malicious programs that fall under the **Malware class**; it does not include Web Anti-Virus detections of potentially dangerous or unwanted programs such as RiskTool or adware.\n\n| Country* | % of attacked users** \n---|---|--- \n1 | Belarus | 23.65 \n2 | Mauritania | 19.04 \n3 | Moldova | 18.88 \n4 | Ukraine | 18.37 \n5 | Kyrgyzstan | 17.53 \n6 | Algeria | 17.51 \n7 | Syria | 15.17 \n8 | Uzbekistan | 15.16 \n9 | Kazakhstan | 14.80 \n10 | Tajikistan | 14.70 \n11 | Russia | 14.54 \n12 | Yemen | 14.38 \n13 | Tunisia | 13.40 \n14 | Estonia | 13.36 \n15 | Latvia | 13.23 \n16 | Libya | 13.04 \n17 | Armenia | 12.95 \n18 | Morocco | 12.39 \n19 | Saudi Arabia | 12.16 \n20 | Macao | 11.67 \n \n_* Excluded are countries with relatively few Kaspersky users (under 10,000)._ \n_** Unique users targeted by **Malware-class** attacks as a percentage of all unique users of Kaspersky products in the country._\n\n_These statistics are based on detection verdicts by the Web Anti-Virus module that were received from users of Kaspersky products who consented to provide statistical data._\n\nOn average during the quarter, 9.43% of computers of Internet users worldwide were subjected to at least one **Malware-class** web attack.\n\n_Geography of web-based malware attacks, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141830/14-en-malware-report-q2-2021-graphs-pc.png>))_\n\n## Local threats\n\n_In this section, we analyze statistical data obtained from the OAS and ODS modules in Kaspersky products. It takes into account malicious programs that were found directly on users&#x27; computers or removable media connected to them (flash drives, camera memory cards, phones, external hard drives), or which initially made their way onto the computer in non-open form (for example, programs in complex installers, encrypted files, etc.)._\n\nIn Q2 2021, our File Anti-Virus detected **68,294,298** malicious and potentially unwanted objects.\n\n### Countries where users faced the highest risk of local infection\n\nFor each country, we calculated the percentage of Kaspersky product users on whose computers File Anti-Virus was triggered during the reporting period. These statistics reflect the level of personal computer infection in different countries.\n\nNote that this rating only includes attacks by malicious programs that fall under the **Malware class**; it does not include File Anti-Virus triggers in response to potentially dangerous or unwanted programs, such as RiskTool or adware.\n\n| Country* | % of attacked users** \n---|---|--- \n1 | Turkmenistan | 49.38 \n2 | Tajikistan | 48.11 \n3 | Afghanistan | 46.52 \n4 | Uzbekistan | 44.21 \n5 | Ethiopia | 43.69 \n6 | Yemen | 43.64 \n7 | Cuba | 38.71 \n8 | Myanmar | 36.12 \n9 | Syria | 35.87 \n10 | South Sudan | 35.22 \n11 | China | 35.14 \n12 | Kyrgyzstan | 34.91 \n13 | Bangladesh | 34.63 \n14 | Venezuela | 34.15 \n15 | Benin | 32.94 \n16 | Algeria | 32.83 \n17 | Iraq | 32.55 \n18 | Madagascar | 31.68 \n19 | Mauritania | 31.60 \n20 | Belarus | 31.38 \n \n_* Excluded are countries with relatively few Kaspersky users (under 10,000)._ \n_** Unique users on whose computers **Malware-class** local threats were blocked, as a percentage of all unique users of Kaspersky products in the country._\n\n_Geography of local infection attempts, Q2 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/08/11141906/15-en-malware-report-q2-2021-graphs-pc.png>))_\n\nOn average worldwide, **Malware-class** local threats were recorded on 15.56% of users&#x27; computers at least once during the quarter. Russia scored 17.52% in this rating.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 10.0, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-08-12T10:00:12", "type": "securelist", "title": "IT threat evolution in Q2 2021. PC statistics", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2017-11882", "CVE-2017-8570", "CVE-2018-0802", "CVE-2020-1472", "CVE-2021-1675", "CVE-2021-21220", "CVE-2021-28310", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30661", "CVE-2021-30663", "CVE-2021-30665", "CVE-2021-31166", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-33742", "CVE-2021-34527"], "modified": "2021-08-12T10:00:12", "id": "SECURELIST:BB0230F9CE86B3F1994060AA0A809C08", "href": "https://securelist.com/it-threat-evolution-in-q2-2021-pc-statistics/103607/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "rapid7blog": [{"lastseen": "2021-06-15T09:07:00", "description": "\n\nIt is another low volume Patch Tuesday this month as Microsoft releases fixes for 50 vulnerabilities. This should not diminish the importance of speedily applying the updates. 6 of the vulnerabilities being patched this month are 0-days under active exploitation ([CVE-2021-31955](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31955>), [CVE-2021-31956](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31956>), [CVE-2021-33739](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33739>), [CVE-2021-33742](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33742>), [CVE-2021-31199](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31199>), and [CVE-2021-31201](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31201>)). These patches should be given immediate priority. Luckily they can all be addressed by normal operating system patches and should not require additional manual intervention. Additionally, Enterprises should take action on [CVE-2021-31962](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31962>) if they use Kerberos in their environment as it may allow an attacker to bypass Kerberos authentication altogether.\n\n## Windows MSHTML Platform Remote Code Execution Vulnerability ([CVE-2021-33742](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33742>))\n\nThis is the only 0-day vulnerability this month which results in a remote code execution. The vulnerability lies within the MSHTML platform which is used by Internet Explorer 11 and Edge Legacy. While these two products are no longer fully supported (Edge Legacy is end of life and IE 11 is no longer supported on certain platforms) the underlying HTML libraries continue to be updated as other applications can make use of it. Further details for this vulnerability will be published by Google's Threat Analysis Group within the next 30 days.\n\n## Kerberos AppContainer Security Feature Bypass Vulnerability ([CVE-2021-31962](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31962>))\n\nWhile this vulnerability has not been exploited in the wild yet, it would be a rather juicy target for exploit developers. Were this to be exploited it may allow a complete bypass of Kerberos authentication, allowing a connection without a password. Kerberos is generally used in Enterprise environments and as such sysadmins should patch this if they are leveraging the strong cryptography authentication mechanism.\n\n## Multiple Elevation of Privilege 0-days \n\n### [CVE-2021-31955](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31955>), [CVE-2021-31956](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31956>), [CVE-2021-33739](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33739>), [CVE-2021-31199](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31199>), and [CVE-2021-31201](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31201>)\n\n \nThe rest of the 0-days this month can result in elevation of privilege. These vulnerabilities are often chained with other vulnerabilities in order to achieve code execution as an Administrator. Luckily for defenders, these vulnerabilities are simply patched using the traditional update methods.\n\n## Summary Tables\n\nHere are this month's patched vulnerabilities split by the product family.\n\n## Apps Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-31945](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31945>) | Paint 3D Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-31946](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31946>) | Paint 3D Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-31983](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31983>) | Paint 3D Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-31980](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31980>) | Microsoft Intune Management Extension Remote Code Execution Vulnerability | No | No | 8.1 | Yes \n[CVE-2021-31942](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31942>) | 3D Viewer Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-31943](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31943>) | 3D Viewer Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-31944](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31944>) | 3D Viewer Information Disclosure Vulnerability | No | No | 5 | Yes \n \n## Browser Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-33741](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33741>) | Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability | No | No | 8.2 | Yes \n \n## Developer Tools Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-31938](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31938>) | Microsoft VsCode Kubernetes Tools Extension Elevation of Privilege Vulnerability | No | No | 7.3 | Yes \n[CVE-2021-31957](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31957>) | .NET Core and Visual Studio Denial of Service Vulnerability | No | No | 5.9 | No \n \n## ESU Windows Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-31968](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31968>) | Windows Remote Desktop Services Denial of Service Vulnerability | No | Yes | 7.5 | No \n[CVE-2021-1675](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1675>) | Windows Print Spooler Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-31958](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31958>) | Windows NTLM Elevation of Privilege Vulnerability | No | No | 7.5 | Yes \n[CVE-2021-31956](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31956>) | Windows NTFS Elevation of Privilege Vulnerability | Yes | No | 7.8 | Yes \n[CVE-2021-33742](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742>) | Windows MSHTML Platform Remote Code Execution Vulnerability | Yes | No | 7.5 | Yes \n[CVE-2021-31971](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31971>) | Windows HTML Platform Security Feature Bypass Vulnerability | No | No | 6.8 | Yes \n[CVE-2021-31973](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31973>) | Windows GPSVC Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-31953](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31953>) | Windows Filter Manager Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-26414](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26414>) | Windows DCOM Server Security Feature Bypass | No | No | 4.8 | Yes \n[CVE-2021-31954](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31954>) | Windows Common Log File System Driver Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-31959](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31959>) | Scripting Engine Memory Corruption Vulnerability | No | No | 6.4 | Yes \n[CVE-2021-31199](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31199>) | Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability | Yes | No | 5.2 | Yes \n[CVE-2021-31201](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31201>) | Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability | Yes | No | 5.2 | Yes \n[CVE-2021-31962](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31962>) | Kerberos AppContainer Security Feature Bypass Vulnerability | No | No | 9.4 | Yes \n \n## Microsoft Office Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-31964](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31964>) | Microsoft SharePoint Server Spoofing Vulnerability | No | No | 7.6 | No \n[CVE-2021-31948](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31948>) | Microsoft SharePoint Server Spoofing Vulnerability | No | No | 7.6 | No \n[CVE-2021-31950](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31950>) | Microsoft SharePoint Server Spoofing Vulnerability | No | No | 7.6 | No \n[CVE-2021-31966](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31966>) | Microsoft SharePoint Server Remote Code Execution Vulnerability | No | No | 7.2 | No \n[CVE-2021-31963](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31963>) | Microsoft SharePoint Server Remote Code Execution Vulnerability | No | No | 7.1 | No \n[CVE-2021-26420](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26420>) | Microsoft SharePoint Server Remote Code Execution Vulnerability | No | No | 7.1 | No \n[CVE-2021-31965](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31965>) | Microsoft SharePoint Server Information Disclosure Vulnerability | No | No | 5.7 | Yes \n[CVE-2021-31949](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31949>) | Microsoft Outlook Remote Code Execution Vulnerability | No | No | 6.7 | Yes \n[CVE-2021-31940](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31940>) | Microsoft Office Graphics Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-31941](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31941>) | Microsoft Office Graphics Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-31939](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31939>) | Microsoft Excel Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n \n## System Center Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-31985](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31985>) | Microsoft Defender Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-31978](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31978>) | Microsoft Defender Denial of Service Vulnerability | No | No | 5.5 | Yes \n \n## Windows Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-31970](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31970>) | Windows TCP/IP Driver Security Feature Bypass Vulnerability | No | No | 5.5 | No \n[CVE-2021-31952](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31952>) | Windows Kernel-Mode Driver Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-31955](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955>) | Windows Kernel Information Disclosure Vulnerability | Yes | No | 5.5 | Yes \n[CVE-2021-31951](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31951>) | Windows Kernel Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-31977](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31977>) | Windows Hyper-V Denial of Service Vulnerability | No | No | 8.6 | Yes \n[CVE-2021-31969](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31969>) | Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-31960](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31960>) | Windows Bind Filter Driver Information Disclosure Vulnerability | No | No | 5.5 | Yes \n[CVE-2021-31967](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31967>) | VP9 Video Extensions Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-31975](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31975>) | Server for NFS Information Disclosure Vulnerability | No | No | 7.5 | Yes \n[CVE-2021-31976](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31976>) | Server for NFS Information Disclosure Vulnerability | No | No | 7.5 | Yes \n[CVE-2021-31974](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31974>) | Server for NFS Denial of Service Vulnerability | No | No | 7.5 | No \n[CVE-2021-33739](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33739>) | Microsoft DWM Core Library Elevation of Privilege Vulnerability | Yes | Yes | 8.4 | Yes \n[CVE-2021-31972](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31972>) | Event Tracing for Windows Information Disclosure Vulnerability | No | No | 5.5 | Yes \n \n## Summary Graphs\n\n", "cvss3": {}, "published": "2021-06-08T10:00:00", "type": "rapid7blog", "title": "Patch Tuesday - June 2021", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-26420", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31938", "CVE-2021-31939", "CVE-2021-31940", "CVE-2021-31941", "CVE-2021-31942", "CVE-2021-31943", "CVE-2021-31944", "CVE-2021-31945", "CVE-2021-31946", "CVE-2021-31948", "CVE-2021-31949", "CVE-2021-31950", "CVE-2021-31951", "CVE-2021-31952", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31957", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31960", "CVE-2021-31962", "CVE-2021-31963", "CVE-2021-31964", "CVE-2021-31965", "CVE-2021-31966", "CVE-2021-31967", "CVE-2021-31968", "CVE-2021-31969", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31972", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-31977", "CVE-2021-31978", "CVE-2021-31980", "CVE-2021-31983", "CVE-2021-31985", "CVE-2021-33739", "CVE-2021-33741", "CVE-2021-33742"], "modified": "2021-06-08T10:00:00", "id": "RAPID7BLOG:E44F025D612AC4EA5DF9F2B56FF8680C", "href": "https://blog.rapid7.com/2021/06/08/patch-tuesday-june-2021/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "qualysblog": [{"lastseen": "2021-06-15T08:32:22", "description": "### Microsoft Patch Tuesday \u2013 June 2021\n\nMicrosoft patched 50 CVEs in their June 2021 Patch Tuesday release, and five of them are rated as critical severity. Six have applicable exploits.\n\n#### Critical Microsoft Vulnerabilities Patched\n\n[CVE-2021-31985](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31985>) \u2013 Microsoft Defender Remote Code Execution Vulnerability\n\nMicrosoft released patches addressing a critical RCE vulnerability in its Defender product (CVE-2021-31985). This CVE has a high likelihood of exploitability and is assigned a CVSSv3 base score of 7.8 by the vendor.\n\n[CVE-2021-31959](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31959>) \u2013 Scripting Engine Memory Corruption Vulnerability\n\nMicrosoft released patches addressing a critical memory corruption vulnerability in the Chakra JScript scripting engine. This vulnerability impacts Windows RT, Windows 7, Windows 8, Windows 10, Windows Server 2008 R2, Windows Server 2012 (R2) and Windows Server 2016. An adversary can exploit this vulnerability when the target user opens a specially crafted file.\n\n[CVE-2021-31963](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31963>) \u2013 Microsoft SharePoint Server Remote Code Execution Vulnerability\n\nMicrosoft released patches addressing a critical RCE in SharePoint Server. This CVE is assigned a CVSSv3 base score of 7.1 by the vendor.\n\n#### Six 0-Day Vulnerabilities with Exploits in the Wild Patched\n\nThe following vulnerabilities need immediate attention for patching since they have active exploits in the wild:\n\n[CVE-2021-33742](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33742>) \u2013 Windows MSHTML Platform Remote Code Execution Vulnerability \n[CVE-2021-33739](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33739>) \u2013 Microsoft DWM Core Library Elevation of Privilege Vulnerability \n[CVE-2021-31956](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31956>) \u2013 Windows NTFS Elevation of Privilege Vulnerability \n[CVE-2021-31955](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31955>) \u2013 Windows Kernel Information Disclosure Vulnerability \n[CVE-2021-31201](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31201>) \u2013 Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability \n[CVE-2021-31199](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31199>) \u2013 Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability\n\n#### **Qualys QIDs Providing Coverage**\n\nQID| Title| Severity| CVE ID \n---|---|---|--- \n91768| Microsoft .NET Core Security Update June 2021| Medium| CVE-2021-31957 \n91769| Microsoft Visual Studio Security Update for June 2021| Medium| CVE-2021-31957 \n375614| Visual Studio Code Kubernetes Tools Extension Elevation of Privilege Vulnerability| Medium| CVE-2021-31938 \n110383| Microsoft SharePoint Enterprise Server Multiple Vulnerabilities June 2021| High| CVE-2021-31966,CVE-2021-31965,CVE-2021-31964,CVE-2021-31963,CVE-2021-31950,CVE-2021-31948,CVE-2021-26420 \n110384| Microsoft Office and Microsoft Office Services and Web Apps Security Update June 2021| High| CVE-2021-31939,CVE-2021-31941,CVE-2021-31940,CVE-2021-31949 \n110385| Mcrosoft Outlook Remote Code Execution Vulnerability Security Update June 2021| High| CVE-2021-31949,CVE-2021-31941 \n91771| Microsoft Defender Multiple Vulnerabilities - June 2021| Critical| CVE-2021-31978,CVE-2021-31985 \n91772| Microsoft Windows Security Update for June 2021| Critical| CVE-2021-1675,CVE-2021-26414,CVE-2021-31199,CVE-2021-31201,CVE-2021-31951,CVE-2021-31952,CVE-2021-31953,CVE-2021-31954,CVE-2021-31955,CVE-2021-31956,CVE-2021-31958,CVE-2021-31959,CVE-2021-31960,CVE-2021-31962,CVE-2021-31968,CVE-2021-31969,CVE-2021-31970,CVE-2021-31971,CVE-2021-31972,CVE-2021-31973,CVE-2021-31974,CVE-2021-31975,CVE-2021-31976,CVE-2021-31977,CVE-2021-33742 \n91773| Microsoft 3D Viewer Multiple Vulnerabilities - June 2021| High| CVE-2021-31944,CVE-2021-31943,CVE-2021-31942 \n91774| Microsoft Paint 3D Remote Code Execution Vulnerability| High| CVE-2021-31983,CVE-2021-31946,CVE-2021-31945 \n91775| Microsoft Windows VP9 Video Extension Remote Code Execution Vulnerability| Medium| CVE-2021-31967 \n91777| Microsoft Windows DWM Core Library Elevation of Privilege Vulnerability - June 2021 | High| CVE-2021-33739 \n \n### Adobe Patch Tuesday \u2013 June 2021\n\nAdobe addressed 41 CVEs this Patch Tuesday, and 21 of them are rated as critical severity impacting Acrobat and Reader, Adobe Photoshop, Creative Cloud Desktop Application, RoboHelp Server, Adobe After Effects, and Adobe Animate products.\n\nAdobe Security Bulletin| QID| Severity| CVE ID \n---|---|---|--- \nAdobe Animate Multiple Security Vulnerabilities (APSB21-50)| 91770| Medium| CVE-2021-28630,CVE-2021-28619,CVE-2021-28617,CVE-2021-28618,CVE-2021-28621,CVE-2021-28620,CVE-2021-28629,CVE-2021-28622 \nAdobe Security Update for Adobe Acrobat and Reader( APSB21-37)| 375611| High| CVE-2021-28551,CVE-2021-28554,CVE-2021-28552,CVE-2021-28631,CVE-2021-28632 \n \n### Discover Patch Tuesday Vulnerabilities in VMDR\n\nQualys VMDR automatically detects new Patch Tuesday vulnerabilities using continuous updates to its Knowledge Base (KB).\n\nYou can see all your impacted hosts by these vulnerabilities using the following QQL query:\n\n`vulnerabilities.vulnerability:(qid:`91768` OR qid:`91769` OR qid:`91770` OR qid:`91771` OR qid:`91772` OR qid:`91773` OR qid:`91774` OR qid:`91775` OR qid:`91777` OR qid:`110383` OR qid:`110384` OR qid:`110385` OR qid:`375611` OR qid:`375614`)`\n\n\n\n### Respond by Patching\n\nVMDR rapidly remediates Windows hosts by deploying the most relevant and applicable per-technology version patches. You can simply select respective QIDs in the Patch Catalog and filter on the \u201cMissing\u201d patches to identify and deploy the applicable, available patches in one go.\n\nThe following QQL will return the missing patches pertaining to this Patch Tuesday.\n\n`(qid:`91768` OR qid:`91769` OR qid:`91770` OR qid:`91771` OR qid:`91772` OR qid:`91773` OR qid:`91774` OR qid:`91775` OR qid:`91777` OR qid:`110383` OR qid:`110384` OR qid:`110385` OR qid:`375611` OR qid:`375614`)`\n\n\n\n### Patch Tuesday Dashboard\n\nThe current updated Patch Tuesday dashboards are available in [Dashboard Toolbox: 2021 Patch Tuesday Dashboard](<https://qualys-secure.force.com/discussions/s/article/000006505>).\n\n### Webinar Series: This Month in Patches\n\nTo help customers leverage the seamless integration between Qualys VMDR and Patch Management and reduce the median time to remediate critical vulnerabilities, the Qualys Research team is hosting a monthly webinar series [_This Month in Patches_](<https://www.brighttalk.com/webcast/11673/491681>).\n\nWe discuss some of the key vulnerabilities disclosed in the past month and how to patch them:\n\n * VMware vCenter Server Multiple Vulnerabilities\n * Ubuntu XStream Vulnerabilities\n * Microsoft Patch Tuesday, June 2021\n\n[Join us live or watch on demand](<https://www.brighttalk.com/webcast/11673/491681>)!\n\n### About Patch Tuesday\n\nPatch Tuesday QIDs are published at [Security Alerts](<https://www.qualys.com/research/security-alerts/>), typically late in the evening of [Patch Tuesday](<https://blog.qualys.com/tag/patch-tuesday>), followed shortly after by [PT dashboards](<https://qualys-secure.force.com/discussions/s/article/000006505>).", "cvss3": {}, "published": "2021-06-08T21:19:29", "type": "qualysblog", "title": "Microsoft & Adobe Patch Tuesday (June 2021) \u2013 Microsoft 50 Vulnerabilities with 5 Critical, Adobe 21 Critical Vulnerabilities", "bulletinFamily": "blog", "cvss2": {}, "cvelist": ["CVE-2021-1675", "CVE-2021-26414", "CVE-2021-26420", "CVE-2021-28551", "CVE-2021-28552", "CVE-2021-28554", "CVE-2021-28617", "CVE-2021-28618", "CVE-2021-28619", "CVE-2021-28620", "CVE-2021-28621", "CVE-2021-28622", "CVE-2021-28629", "CVE-2021-28630", "CVE-2021-28631", "CVE-2021-28632", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31938", "CVE-2021-31939", "CVE-2021-31940", "CVE-2021-31941", "CVE-2021-31942", "CVE-2021-31943", "CVE-2021-31944", "CVE-2021-31945", "CVE-2021-31946", "CVE-2021-31948", "CVE-2021-31949", "CVE-2021-31950", "CVE-2021-31951", "CVE-2021-31952", "CVE-2021-31953", "CVE-2021-31954", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31957", "CVE-2021-31958", "CVE-2021-31959", "CVE-2021-31960", "CVE-2021-31962", "CVE-2021-31963", "CVE-2021-31964", "CVE-2021-31965", "CVE-2021-31966", "CVE-2021-31967", "CVE-2021-31968", "CVE-2021-31969", "CVE-2021-31970", "CVE-2021-31971", "CVE-2021-31972", "CVE-2021-31973", "CVE-2021-31974", "CVE-2021-31975", "CVE-2021-31976", "CVE-2021-31977", "CVE-2021-31978", "CVE-2021-31983", "CVE-2021-31985", "CVE-2021-33739", "CVE-2021-33742"], "modified": "2021-06-08T21:19:29", "id": "QUALYSBLOG:23EF75126B24C22C999DAD4D7A2E9DF5", "href": "https://blog.qualys.com/category/vulnerabilities-threat-research", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2021-11-09T06:36:02", "description": "[Start your VMDR 30-day, no-cost trial today](<https://www.qualys.com/forms/vmdr/>)\n\n## Overview\n\nOn November 3, 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a [Binding Operational Directive 22-01](<https://cyber.dhs.gov/bod/22-01/>), &quot;Reducing the Significant Risk of Known Exploited Vulnerabilities.&quot; [This directive](<https://www.cisa.gov/news/2021/11/03/cisa-releases-directive-reducing-significant-risk-known-exploited-vulnerabilities>) recommends urgent and prioritized remediation of the vulnerabilities that adversaries are actively exploiting. It establishes a CISA-managed catalog of known exploited vulnerabilities that carry significant risk to the federal government and establishes requirements for agencies to remediate these vulnerabilities.\n\nThis directive requires agencies to review and update agency internal vulnerability management procedures within 60 days according to this directive and remediate each vulnerability according to the timelines outlined in &#x27;CISA&#x27;s vulnerability catalog.\n\nQualys helps customers to identify and assess risk to organizations&#x27; digital infrastructure and automate remediation. Qualys&#x27; guidance for rapid response to Operational Directive is below.\n\n## Directive Scope\n\nThis directive applies to all software and hardware found on federal information systems managed on agency premises or hosted by third parties on an agency&#x27;s behalf.\n\nHowever, CISA strongly recommends that private businesses and state, local, tribal, and territorial (SLTT) governments prioritize the mitigation of vulnerabilities listed in CISA&#x27;s public catalog.\n\n## CISA Catalog of Known Exploited Vulnerabilities\n\nIn total, CISA posted a list of [291 Common Vulnerabilities and Exposures (CVEs)](<https://www.cisa.gov/known-exploited-vulnerabilities-catalog>) that pose the highest risk to federal agencies. The Qualys Research team has mapped all these CVEs to applicable QIDs. You can view the complete list of CVEs and the corresponding QIDs [here](<https://success.qualys.com/discussions/s/article/000006791>).\n\n### Not all vulnerabilities are created equal\n\nOur quick review of the 291 CVEs posted by CISA suggests that not all vulnerabilities hold the same priority. CISA has ordered U.S. federal enterprises to apply patches as soon as possible. The remediation guidance can be grouped into three distinct categories:\n\n#### Category 1 \u2013 Past Due\n\nRemediation of 15 CVEs (~5%) are already past due. These vulnerabilities include some of the most significant exploits in the recent past, including PrintNightmare, SigRed, ZeroLogon, and vulnerabilities in CryptoAPI, Pulse Secure, and more. Qualys Patch Management can help you remediate most of these vulnerabilities.\n\n#### Category 2 \u2013 Patch in less than two weeks\n\n100 (34%) Vulnerabilities need to be patched in the next two weeks, or by **November 17, 2022**.\n\n#### Category 3 \u2013 Patch within six months\n\nThe remaining 176 vulnerabilities (60%) must be patched within the next six months or by **May 3, 2022**.\n\n## Detect CISA&#x27;s Vulnerabilities Using Qualys VMDR\n\nThe Qualys Research team has released several remote and authenticated detections (QIDs) for the vulnerabilities. Since the directive includes 291 CVEs, we recommend executing your search based on vulnerability criticality, release date, or other categories.\n\nFor example, to detect critical CVEs released in 2021:\n\n_vulnerabilities.vulnerability.criticality:CRITICAL and vulnerabilities.vulnerability.cveIds:[ `CVE-2021-1497`,`CVE-2021-1498`,`CVE-2021-1647`,`CVE-2021-1675`,`CVE-2021-1732`,`CVE-2021-1782`,`CVE-2021-1870`,`CVE-2021-1871`,`CVE-2021-1879`,`CVE-2021-1905`,`CVE-2021-1906`,`CVE-2021-20016`,`CVE-2021-21017`,`CVE-2021-21148`,`CVE-2021-21166`,`CVE-2021-21193`,`CVE-2021-21206`,`CVE-2021-21220`,`CVE-2021-21224`,`CVE-2021-21972`,`CVE-2021-21985`,`CVE-2021-22005`,`CVE-2021-22205`,`CVE-2021-22502`,`CVE-2021-22893`,`CVE-2021-22894`,`CVE-2021-22899`,`CVE-2021-22900`,`CVE-2021-22986`,`CVE-2021-26084`,`CVE-2021-26411`,`CVE-2021-26855`,`CVE-2021-26857`,`CVE-2021-26858`,`CVE-2021-27059`,`CVE-2021-27065`,`CVE-2021-27085`,`CVE-2021-27101`,`CVE-2021-27102`,`CVE-2021-27103`,`CVE-2021-27104`,`CVE-2021-28310`,`CVE-2021-28550`,`CVE-2021-28663`,`CVE-2021-28664`,`CVE-2021-30116`,`CVE-2021-30551`,`CVE-2021-30554`,`CVE-2021-30563`,`CVE-2021-30632`,`CVE-2021-30633`,`CVE-2021-30657`,`CVE-2021-30661`,`CVE-2021-30663`,`CVE-2021-30665`,`CVE-2021-30666`,`CVE-2021-30713`,`CVE-2021-30761`,`CVE-2021-30762`,`CVE-2021-30807`,`CVE-2021-30858`,`CVE-2021-30860`,`CVE-2021-30860`,`CVE-2021-30869`,`CVE-2021-31199`,`CVE-2021-31201`,`CVE-2021-31207`,`CVE-2021-31955`,`CVE-2021-31956`,`CVE-2021-31979`,`CVE-2021-33739`,`CVE-2021-33742`,`CVE-2021-33771`,`CVE-2021-34448`,`CVE-2021-34473`,`CVE-2021-34523`,`CVE-2021-34527`,`CVE-2021-35211`,`CVE-2021-36741`,`CVE-2021-36742`,`CVE-2021-36942`,`CVE-2021-36948`,`CVE-2021-36955`,`CVE-2021-37973`,`CVE-2021-37975`,`CVE-2021-37976`,`CVE-2021-38000`,`CVE-2021-38003`,`CVE-2021-38645`,`CVE-2021-38647`,`CVE-2021-38647`,`CVE-2021-38648`,`CVE-2021-38649`,`CVE-2021-40444`,`CVE-2021-40539`,`CVE-2021-41773`,`CVE-2021-42013`,`CVE-2021-42258` ]_\n\n\n\nUsing [Qualys VMDR](<https://www.qualys.com/subscriptions/vmdr/>), you can effectively prioritize those vulnerabilities using the VMDR Prioritization report.\n\n\n\nIn addition, you can locate a vulnerable host through Qualys Threat Protection by simply clicking on the impacted hosts to effectively identify and track this vulnerability.\n\n\n\nWith Qualys Unified Dashboard, you can track your exposure to the CISA Known Exploited Vulnerabilities and gather your status and overall management in real-time. With trending enabled for dashboard widgets, you can keep track of the status of the vulnerabilities in your environment using the [&quot;CISA 2010-21| KNOWN EXPLOITED VULNERABILITIES&quot;](<https://success.qualys.com/support/s/article/000006791>) Dashboard.\n\n### Detailed Operational Dashboard:\n\n\n\n### Summary Dashboard High Level Structured by Vendor:\n\n\n\n## Remediation\n\nTo comply with this directive, federal agencies must remediate most &quot;Category 2&quot; vulnerabilities by **November 17, 2021**, and &quot;Category 3&quot; by May 3, 2021. Qualys Patch Management can help streamline the remediation of many of these vulnerabilities.\n\nCustomers can copy the following query into the Patch Management app to help customers comply with the directive&#x27;s aggressive remediation date of November 17, 2021. Running this query will find all required patches and allow quick and efficient deployment of those missing patches to all assets directly from within the Qualys Cloud Platform.\n\ncve:[`CVE-2021-1497`,`CVE-2021-1498`,`CVE-2021-1647`,`CVE-2021-1675`,`CVE-2021-1732`,`CVE-2021-1782`,`CVE-2021-1870`,`CVE-2021-1871`,`CVE-2021-1879`,`CVE-2021-1905`,`CVE-2021-1906`,`CVE-2021-20016`,`CVE-2021-21017`,`CVE-2021-21148`,`CVE-2021-21166`,`CVE-2021-21193`,`CVE-2021-21206`,`CVE-2021-21220`,`CVE-2021-21224`,`CVE-2021-21972`,`CVE-2021-21985`,`CVE-2021-22005`,`CVE-2021-22205`,`CVE-2021-22502`,`CVE-2021-22893`,`CVE-2021-22894`,`CVE-2021-22899`,`CVE-2021-22900`,`CVE-2021-22986`,`CVE-2021-26084`,`CVE-2021-26411`,`CVE-2021-26855`,`CVE-2021-26857`,`CVE-2021-26858`,`CVE-2021-27059`,`CVE-2021-27065`,`CVE-2021-27085`,`CVE-2021-27101`,`CVE-2021-27102`,`CVE-2021-27103`,`CVE-2021-27104`,`CVE-2021-28310`,`CVE-2021-28550`,`CVE-2021-28663`,`CVE-2021-28664`,`CVE-2021-30116`,`CVE-2021-30551`,`CVE-2021-30554`,`CVE-2021-30563`,`CVE-2021-30632`,`CVE-2021-30633`,`CVE-2021-30657`,`CVE-2021-30661`,`CVE-2021-30663`,`CVE-2021-30665`,`CVE-2021-30666`,`CVE-2021-30713`,`CVE-2021-30761`,`CVE-2021-30762`,`CVE-2021-30807`,`CVE-2021-30858`,`CVE-2021-30860`,`CVE-2021-30860`,`CVE-2021-30869`,`CVE-2021-31199`,`CVE-2021-31201`,`CVE-2021-31207`,`CVE-2021-31955`,`CVE-2021-31956`,`CVE-2021-31979`,`CVE-2021-33739`,`CVE-2021-33742`,`CVE-2021-33771`,`CVE-2021-34448`,`CVE-2021-34473`,`CVE-2021-34523`,`CVE-2021-34527`,`CVE-2021-35211`,`CVE-2021-36741`,`CVE-2021-36742`,`CVE-2021-36942`,`CVE-2021-36948`,`CVE-2021-36955`,`CVE-2021-37973`,`CVE-2021-37975`,`CVE-2021-37976`,`CVE-2021-38000`,`CVE-2021-38003`,`CVE-2021-38645`,`CVE-2021-38647`,`CVE-2021-38647`,`CVE-2021-38648`,`CVE-2021-38649`,`CVE-2021-40444`,`CVE-2021-40539`,`CVE-2021-41773`,`CVE-2021-42013`,`CVE-2021-42258` ]\n\n\n\nQualys patch content covers many Microsoft, Linux, and third-party applications; however, some of the vulnerabilities introduced by CISA are not currently supported out-of-the-box by Qualys. To remediate those vulnerabilities, Qualys provides the ability to deploy custom patches. The flexibility to customize patch deployment allows customers to patch the remaining CVEs in this list.\n\nNote that the due date for \u201cCategory 1\u201d patches has already passed. To find missing patches in your environment for \u201cCategory 1\u201d past due CVEs, copy the following query into the Patch Management app:\n\ncve:[&#x27;CVE-2021-1732\u2032,&#x27;CVE-2020-1350\u2032,&#x27;CVE-2020-1472\u2032,&#x27;CVE-2021-26855\u2032,&#x27;CVE-2021-26858\u2032,&#x27;CVE-2021-27065\u2032,&#x27;CVE-2020-0601\u2032,&#x27;CVE-2021-26857\u2032,&#x27;CVE-2021-22893\u2032,&#x27;CVE-2020-8243\u2032,&#x27;CVE-2021-22900\u2032,&#x27;CVE-2021-22894\u2032,&#x27;CVE-2020-8260\u2032,&#x27;CVE-2021-22899\u2032,&#x27;CVE-2019-11510&#x27;]\n\n\n\n## Federal Enterprises and Agencies Can Act Now\n\nFor federal enterprises and agencies, it&#x27;s a race against time to remediate these vulnerabilities across their respective environments and achieve compliance with this binding directive. Qualys solutions can help achieve compliance with this binding directive. Qualys Cloud Platform is FedRAMP authorized, with [107 FedRAMP authorizations](<https://marketplace.fedramp.gov/#!/product/qualys-cloud-platform?sort=-authorizations>).\n\nHere are a few steps Federal enterprises can take immediately:\n\n * Run vulnerability assessments against all your assets by leveraging various sensors such as Qualys agent, scanners, and more\n * Prioritize remediation by due dates\n * Identify all vulnerable assets automatically mapped into the threat feed\n * Use Patch Management to apply patches and other configurations changes\n * Track remediation progress through Unified Dashboards\n\n## Summary\n\nUnderstanding vulnerabilities is a critical but partial part of threat mitigation. Qualys VMDR helps customers discover, assess threats, assign risk, and remediate threats in one solution. Qualys customers rely on the accuracy of Qualys&#x27; threat intelligence to protect their digital environments and stay current with patch guidance. Using Qualys VMDR can help any organization efficiently respond to the CISA directive.\n\n## Getting Started\n\nLearn how [Qualys VMDR](<https://www.qualys.com/subscriptions/vmdr/>) provides actionable vulnerability guidance and automates remediation in one solution. Ready to get started? Sign up for a 30-day, no-cost [VMDR trial](<https://www.qualys.com/forms/vmdr/>).", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 10.0, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-11-09T06:15:01", "type": "qualysblog", "title": "Qualys Response to CISA Alert: Binding Operational Directive 22-01", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-11510", "CVE-2020-0601", "CVE-2020-1350", "CVE-2020-1472", "CVE-2020-8243", "CVE-2020-8260", "CVE-2021-1497", "CVE-2021-1498", "CVE-2021-1647", "CVE-2021-1675", "CVE-2021-1732", "CVE-2021-1782", "CVE-2021-1870", "CVE-2021-1871", "CVE-2021-1879", "CVE-2021-1905", "CVE-2021-1906", "CVE-2021-20016", "CVE-2021-21017", "CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-21972", "CVE-2021-21985", "CVE-2021-22005", "CVE-2021-22205", "CVE-2021-22502", "CVE-2021-22893", "CVE-2021-22894", "CVE-2021-22899", "CVE-2021-22900", "CVE-2021-22986", "CVE-2021-26084", "CVE-2021-26411", "CVE-2021-26855", "CVE-2021-26857", "CVE-2021-26858", "CVE-2021-27059", "CVE-2021-27065", "CVE-2021-27085", "CVE-2021-27101", "CVE-2021-27102", "CVE-2021-27103", "CVE-2021-27104", "CVE-2021-28310", "CVE-2021-28550", "CVE-2021-28663", "CVE-2021-28664", "CVE-2021-30116", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-30657", "CVE-2021-30661", "CVE-2021-30663", "CVE-2021-30665", "CVE-2021-30666", "CVE-2021-30713", "CVE-2021-30761", "CVE-2021-30762", "CVE-2021-30807", "CVE-2021-30858", "CVE-2021-30860", "CVE-2021-30869", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31207", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31979", "CVE-2021-33739", "CVE-2021-33742", "CVE-2021-33771", "CVE-2021-34448", "CVE-2021-34473", "CVE-2021-34523", "CVE-2021-34527", "CVE-2021-35211", "CVE-2021-36741", "CVE-2021-36742", "CVE-2021-36942", "CVE-2021-36948", "CVE-2021-36955", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976", "CVE-2021-38000", "CVE-2021-38003", "CVE-2021-38645", "CVE-2021-38647", "CVE-2021-38648", "CVE-2021-38649", "CVE-2021-40444", "CVE-2021-40539", "CVE-2021-41773", "CVE-2021-42013", "CVE-2021-42258"], "modified": "2021-11-09T06:15:01", "id": "QUALYSBLOG:BC22CE22A3E70823D5F0E944CBD5CE4A", "href": "https://blog.qualys.com/category/vulnerabilities-threat-research", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-02-25T19:27:09", "description": "_CISA released a directive in November 2021, recommending urgent and prioritized remediation of actively exploited vulnerabilities. Both government agencies and corporations should heed this advice. This blog outlines how Qualys Vulnerability Management, Detection &amp; Response can be used by any organization to respond to this directive efficiently and effectively._\n\n### Situation\n\nLast November 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a [Binding Operational Directive 22-01](<https://cyber.dhs.gov/bod/22-01/>) called \u201cReducing the Significant Risk of Known Exploited Vulnerabilities.\u201d [This directive](<https://www.cisa.gov/news/2021/11/03/cisa-releases-directive-reducing-significant-risk-known-exploited-vulnerabilities>) recommends urgent and prioritized remediation of the vulnerabilities that adversaries are actively exploiting. It establishes a CISA-managed catalog of Known Exploited Vulnerabilities that carry significant risk to the federal government and sets requirements for agencies to remediate these vulnerabilities.\n\nThis directive requires federal agencies to review and update internal vulnerability management procedures to remediate each vulnerability according to the timelines outlined in CISA\u2019s vulnerability catalog.\n\n### Directive Scope\n\nThis CISA directive applies to all software and hardware found on federal information systems managed on agency premises or hosted by third parties on an agency\u2019s behalf.\n\nHowever, CISA strongly recommends that public and private businesses as well as state, local, tribal, and territorial (SLTT) governments prioritize the mitigation of vulnerabilities listed in CISA\u2019s public catalog. This is truly vulnerability management guidance for all organizations to heed.\n\n### CISA Catalog of Known Exploited Vulnerabilities\n\nIn total, CISA posted a list of [379 Common Vulnerabilities and Exposures (CVEs)](<https://www.cisa.gov/known-exploited-vulnerabilities-catalog>) that pose the highest risk to federal agencies. CISA\u2019s most recent update was issued on February 22, 2022.\n\nThe Qualys Research team is continuously updating CVEs to available QIDs (Qualys vulnerability identifiers) in the Qualys Knowledgebase, with the RTI field \u201cCISA Exploited\u201d and this is going to be a continuous approach, as CISA frequently amends with the latest CVE as part of their regular feeds.\n\nOut of these vulnerabilities, Directive 22-01 urges all organizations to reduce their exposure to cyberattacks by effectively prioritizing the remediation of the identified Vulnerabilities.\n\nCISA has ordered U.S. federal agencies to apply patches as soon as possible. The remediation guidance is grouped into multiple categories by CISA based on attack surface severity and time-to-remediate. The timelines are available in the [Catalog](<https://www.cisa.gov/known-exploited-vulnerabilities-catalog>) for each of the CVEs.\n\n### Detect CISA Vulnerabilities Using Qualys VMDR\n\nQualys helps customers to identify and assess the risk to their organizations\u2019 digital infrastructure, and then to automate remediation. Qualys\u2019 guidance for rapid response to Directive 22-01 follows.\n\nThe Qualys Research team has released multiple remote and authenticated detections (QIDs) for these vulnerabilities. Since the directive includes 379 CVEs (as of February 22, 2022) we recommend executing your search based on QQL (Qualys Query Language), as shown here for released QIDs by Qualys **_vulnerabilities.vulnerability.threatIntel.cisaKnownExploitedVulns:&quot;true&quot;_**\n\n\n\n### CISA Exploited RTI\n\nUsing [Qualys VMDR](<https://www.qualys.com/subscriptions/vmdr/>), you can effectively prioritize those vulnerabilities using VMDR Prioritization. Qualys has introduced an **RTI Category, CISA Exploited**.\n\nThis RTI indicates that the vulnerabilities are associated with the CISA catalog.\n\n\n\nIn addition, you can locate a vulnerable host through Qualys Threat Protection by simply clicking on the impacted hosts to effectively identify and track this vulnerability.\n\n\n\nWith Qualys Unified Dashboard, you can track your exposure to CISA Known Exploited Vulnerabilities and track your status and overall management in real-time. With dashboard widgets, you can keep track of the status of vulnerabilities in your environment using the [\u201cCISA 2010-21| KNOWN EXPLOITED VULNERABILITIES\u201d](<https://success.qualys.com/support/s/article/000006791>) Dashboard.\n\n### Detailed Operational Dashboard\n\n\n\n### Remediation\n\nTo comply with this directive, federal agencies need to remediate all vulnerabilities as per the remediation timelines suggested in [CISA Catalog](<https://www.cisa.gov/known-exploited-vulnerabilities-catalog>)**.**\n\nQualys patch content covers many Microsoft, Linux, and third-party applications. However, some of the vulnerabilities introduced by CISA are not currently supported out-of-the-box by Qualys. To remediate those vulnerabilities, Qualys provides the ability to deploy custom patches. The flexibility to customize patch deployment allows customers to patch all the remaining CVEs in their list.\n\nCustomers can copy the following query into the Patch Management app to help customers comply with the directive\u2019s aggressive remediation timelines set by CISA. Running this query for specific CVEs will find required patches and allow quick and efficient deployment of those missing patches to all assets directly from within Qualys Cloud Platform.\n \n \n cve:[`CVE-2010-5326`,`CVE-2012-0158`,`CVE-2012-0391`,`CVE-2012-3152`,`CVE-2013-3900`,`CVE-2013-3906`,`CVE-2014-1761`,`CVE-2014-1776`,`CVE-2014-1812`,`CVE-2015-1635`,`CVE-2015-1641`,`CVE-2015-4852`,`CVE-2016-0167`,`CVE-2016-0185`,`CVE-2016-3088`,`CVE-2016-3235`,`CVE-2016-3643`,`CVE-2016-3976`,`CVE-2016-7255`,`CVE-2016-9563`,`CVE-2017-0143`,`CVE-2017-0144`,`CVE-2017-0145`,`CVE-2017-0199`,`CVE-2017-0262`,`CVE-2017-0263`,`CVE-2017-10271`,`CVE-2017-11774`,`CVE-2017-11882`,`CVE-2017-5638`,`CVE-2017-5689`,`CVE-2017-6327`,`CVE-2017-7269`,`CVE-2017-8464`,`CVE-2017-8759`,`CVE-2017-9791`,`CVE-2017-9805`,`CVE-2017-9841`,`CVE-2018-0798`,`CVE-2018-0802`,`CVE-2018-1000861`,`CVE-2018-11776`,`CVE-2018-15961`,`CVE-2018-15982`,`CVE-2018-2380`,`CVE-2018-4878`,`CVE-2018-4939`,`CVE-2018-6789`,`CVE-2018-7600`,`CVE-2018-8174`,`CVE-2018-8453`,`CVE-2018-8653`,`CVE-2019-0193`,`CVE-2019-0211`,`CVE-2019-0541`,`CVE-2019-0604`,`CVE-2019-0708`,`CVE-2019-0752`,`CVE-2019-0797`,`CVE-2019-0803`,`CVE-2019-0808`,`CVE-2019-0859`,`CVE-2019-0863`,`CVE-2019-10149`,`CVE-2019-10758`,`CVE-2019-11510`,`CVE-2019-11539`,`CVE-2019-1214`,`CVE-2019-1215`,`CVE-2019-1367`,`CVE-2019-1429`,`CVE-2019-1458`,`CVE-2019-16759`,`CVE-2019-17026`,`CVE-2019-17558`,`CVE-2019-18187`,`CVE-2019-18988`,`CVE-2019-2725`,`CVE-2019-8394`,`CVE-2019-9978`,`CVE-2020-0601`,`CVE-2020-0646`,`CVE-2020-0674`,`CVE-2020-0683`,`CVE-2020-0688`,`CVE-2020-0787`,`CVE-2020-0796`,`CVE-2020-0878`,`CVE-2020-0938`,`CVE-2020-0968`,`CVE-2020-0986`,`CVE-2020-10148`,`CVE-2020-10189`,`CVE-2020-1020`,`CVE-2020-1040`,`CVE-2020-1054`,`CVE-2020-1147`,`CVE-2020-11738`,`CVE-2020-11978`,`CVE-2020-1350`,`CVE-2020-13671`,`CVE-2020-1380`,`CVE-2020-13927`,`CVE-2020-1464`,`CVE-2020-1472`,`CVE-2020-14750`,`CVE-2020-14871`,`CVE-2020-14882`,`CVE-2020-14883`,`CVE-2020-15505`,`CVE-2020-15999`,`CVE-2020-16009`,`CVE-2020-16010`,`CVE-2020-16013`,`CVE-2020-16017`,`CVE-2020-17087`,`CVE-2020-17144`,`CVE-2020-17496`,`CVE-2020-17530`,`CVE-2020-24557`,`CVE-2020-25213`,`CVE-2020-2555`,`CVE-2020-6207`,`CVE-2020-6287`,`CVE-2020-6418`,`CVE-2020-6572`,`CVE-2020-6819`,`CVE-2020-6820`,`CVE-2020-8243`,`CVE-2020-8260`,`CVE-2020-8467`,`CVE-2020-8468`,`CVE-2020-8599`,`CVE-2021-1647`,`CVE-2021-1675`,`CVE-2021-1732`,`CVE-2021-21017`,`CVE-2021-21148`,`CVE-2021-21166`,`CVE-2021-21193`,`CVE-2021-21206`,`CVE-2021-21220`,`CVE-2021-21224`,`CVE-2021-22204`,`CVE-2021-22893`,`CVE-2021-22894`,`CVE-2021-22899`,`CVE-2021-22900`,`CVE-2021-26411`,`CVE-2021-26855`,`CVE-2021-26857`,`CVE-2021-26858`,`CVE-2021-27059`,`CVE-2021-27065`,`CVE-2021-27085`,`CVE-2021-28310`,`CVE-2021-28550`,`CVE-2021-30116`,`CVE-2021-30551`,`CVE-2021-30554`,`CVE-2021-30563`,`CVE-2021-30632`,`CVE-2021-30633`,`CVE-2021-31199`,`CVE-2021-31201`,`CVE-2021-31207`,`CVE-2021-31955`,`CVE-2021-31956`,`CVE-2021-31979`,`CVE-2021-33739`,`CVE-2021-33742`,`CVE-2021-33766`,`CVE-2021-33771`,`CVE-2021-34448`,`CVE-2021-34473`,`CVE-2021-34523`,`CVE-2021-34527`,`CVE-2021-35211`,`CVE-2021-35247`,`CVE-2021-36741`,`CVE-2021-36742`,`CVE-2021-36934`,`CVE-2021-36942`,`CVE-2021-36948`,`CVE-2021-36955`,`CVE-2021-37415`,`CVE-2021-37973`,`CVE-2021-37975`,`CVE-2021-37976`,`CVE-2021-38000`,`CVE-2021-38003`,`CVE-2021-38645`,`CVE-2021-38647`,`CVE-2021-38648`,`CVE-2021-38649`,`CVE-2021-40438`,`CVE-2021-40444`,`CVE-2021-40449`,`CVE-2021-40539`,`CVE-2021-4102`,`CVE-2021-41773`,`CVE-2021-42013`,`CVE-2021-42292`,`CVE-2021-42321`,`CVE-2021-43890`,`CVE-2021-44077`,`CVE-2021-44228`,`CVE-2021-44515`,`CVE-2022-0609`,`CVE-2022-21882`,`CVE-2022-24086`,`CVE-2010-1871`,`CVE-2017-12149`,`CVE-2019-13272` ]\n\n\n\nVulnerabilities can be validated through VMDR and a Patch Job can be configured for vulnerable assets.\n\n\n\n### Federal Enterprises and Agencies Can Act Now\n\nFor federal agencies and enterprises, it\u2019s a race against time to remediate these vulnerabilities across their respective environments and achieve compliance with this binding directive. Qualys solutions can help your organization to achieve compliance with this binding directive. Qualys Cloud Platform is FedRAMP authorized, with [107 FedRAMP authorizations](<https://marketplace.fedramp.gov/#!/product/qualys-cloud-platform?sort=-authorizations>) to our credit.\n\nHere are a few steps Federal entities can take immediately:\n\n * Run vulnerability assessments against all of your assets by leveraging our various sensors such as Qualys agent, scanners, and more\n * Prioritize remediation by due dates\n * Identify all vulnerable assets automatically mapped into the threat feed\n * Use Qualys Patch Management to apply patches and other configuration changes\n * Track remediation progress through our Unified Dashboards\n\n### Summary\n\nUnderstanding just which vulnerabilities exist in your environment is a critical but small part of threat mitigation. Qualys VMDR helps customers discover their exposure, assess threats, assign risk, and remediate threats \u2013 all in a single unified solution. Qualys customers rely on the accuracy of Qualys\u2019 threat intelligence to protect their digital environments and stay current with patch guidance. Using Qualys VMDR can help any size organization efficiently respond to CISA Binding Operational Directive 22-01.\n\n#### Getting Started\n\nLearn how [Qualys VMDR](<https://www.qualys.com/subscriptions/vmdr/>) provides actionable vulnerability guidance and automates remediation in one solution. Ready to get started? Sign up for a 30-day, no-cost [VMDR trial](<https://www.qualys.com/forms/vmdr/>).", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 10.0, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 6.0}, "published": "2022-02-23T05:39:00", "type": "qualysblog", "title": "Managing CISA Known Exploited Vulnerabilities with Qualys VMDR", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2010-1871", "CVE-2010-5326", "CVE-2012-0158", "CVE-2012-0391", "CVE-2012-3152", "CVE-2013-3900", "CVE-2013-3906", "CVE-2014-1761", "CVE-2014-1776", "CVE-2014-1812", "CVE-2015-1635", "CVE-2015-1641", "CVE-2015-4852", "CVE-2016-0167", "CVE-2016-0185", "CVE-2016-3088", "CVE-2016-3235", "CVE-2016-3643", "CVE-2016-3976", "CVE-2016-7255", "CVE-2016-9563", "CVE-2017-0143", "CVE-2017-0144", "CVE-2017-0145", "CVE-2017-0199", "CVE-2017-0262", "CVE-2017-0263", "CVE-2017-10271", "CVE-2017-11774", "CVE-2017-11882", "CVE-2017-12149", "CVE-2017-5638", "CVE-2017-5689", "CVE-2017-6327", "CVE-2017-7269", "CVE-2017-8464", "CVE-2017-8759", "CVE-2017-9791", "CVE-2017-9805", "CVE-2017-9841", "CVE-2018-0798", "CVE-2018-0802", "CVE-2018-1000861", "CVE-2018-11776", "CVE-2018-15961", "CVE-2018-15982", "CVE-2018-2380", "CVE-2018-4878", "CVE-2018-4939", "CVE-2018-6789", "CVE-2018-7600", "CVE-2018-8174", "CVE-2018-8453", "CVE-2018-8653", "CVE-2019-0193", "CVE-2019-0211", "CVE-2019-0541", "CVE-2019-0604", "CVE-2019-0708", "CVE-2019-0752", "CVE-2019-0797", "CVE-2019-0803", "CVE-2019-0808", "CVE-2019-0859", "CVE-2019-0863", "CVE-2019-10149", "CVE-2019-10758", "CVE-2019-11510", "CVE-2019-11539", "CVE-2019-1214", "CVE-2019-1215", "CVE-2019-13272", "CVE-2019-1367", "CVE-2019-1429", "CVE-2019-1458", "CVE-2019-16759", "CVE-2019-17026", "CVE-2019-17558", "CVE-2019-18187", "CVE-2019-18988", "CVE-2019-2725", "CVE-2019-8394", "CVE-2019-9978", "CVE-2020-0601", "CVE-2020-0646", "CVE-2020-0674", "CVE-2020-0683", "CVE-2020-0688", "CVE-2020-0787", "CVE-2020-0796", "CVE-2020-0878", "CVE-2020-0938", "CVE-2020-0968", "CVE-2020-0986", "CVE-2020-10148", "CVE-2020-10189", "CVE-2020-1020", "CVE-2020-1040", "CVE-2020-1054", "CVE-2020-1147", "CVE-2020-11738", "CVE-2020-11978", "CVE-2020-1350", "CVE-2020-13671", "CVE-2020-1380", "CVE-2020-13927", "CVE-2020-1464", "CVE-2020-1472", "CVE-2020-14750", "CVE-2020-14871", "CVE-2020-14882", "CVE-2020-14883", "CVE-2020-15505", "CVE-2020-15999", "CVE-2020-16009", "CVE-2020-16010", "CVE-2020-16013", "CVE-2020-16017", "CVE-2020-17087", "CVE-2020-17144", "CVE-2020-17496", "CVE-2020-17530", "CVE-2020-24557", "CVE-2020-25213", "CVE-2020-2555", "CVE-2020-6207", "CVE-2020-6287", "CVE-2020-6418", "CVE-2020-6572", "CVE-2020-6819", "CVE-2020-6820", "CVE-2020-8243", "CVE-2020-8260", "CVE-2020-8467", "CVE-2020-8468", "CVE-2020-8599", "CVE-2021-1647", "CVE-2021-1675", "CVE-2021-1732", "CVE-2021-21017", "CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-22204", "CVE-2021-22893", "CVE-2021-22894", "CVE-2021-22899", "CVE-2021-22900", "CVE-2021-26411", "CVE-2021-26855", "CVE-2021-26857", "CVE-2021-26858", "CVE-2021-27059", "CVE-2021-27065", "CVE-2021-27085", "CVE-2021-28310", "CVE-2021-28550", "CVE-2021-30116", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31207", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31979", "CVE-2021-33739", "CVE-2021-33742", "CVE-2021-33766", "CVE-2021-33771", "CVE-2021-34448", "CVE-2021-34473", "CVE-2021-34523", "CVE-2021-34527", "CVE-2021-35211", "CVE-2021-35247", "CVE-2021-36741", "CVE-2021-36742", "CVE-2021-36934", "CVE-2021-36942", "CVE-2021-36948", "CVE-2021-36955", "CVE-2021-37415", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976", "CVE-2021-38000", "CVE-2021-38003", "CVE-2021-38645", "CVE-2021-38647", "CVE-2021-38648", "CVE-2021-38649", "CVE-2021-40438", "CVE-2021-40444", "CVE-2021-40449", "CVE-2021-40539", "CVE-2021-4102", "CVE-2021-41773", "CVE-2021-42013", "CVE-2021-42292", "CVE-2021-42321", "CVE-2021-43890", "CVE-2021-44077", "CVE-2021-44228", "CVE-2021-44515", "CVE-2022-0609", "CVE-2022-21882", "CVE-2022-24086"], "modified": "2022-02-23T05:39:00", "id": "QUALYSBLOG:0082A77BD8EFFF48B406D107FEFD0DD3", "href": "https://blog.qualys.com/category/product-tech", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "googleprojectzero": [{"lastseen": "2022-08-16T01:57:26", "description": "A Year in Review of 0-days Used In-the-Wild in 2021\n\nPosted by Maddie Stone, Google Project Zero\n\nThis is our third annual year in review of 0-days exploited in-the-wild [[2020](<https://googleprojectzero.blogspot.com/2021/02/deja-vu-lnerability.html>), [2019](<https://googleprojectzero.blogspot.com/2020/07/detection-deficit-year-in-review-of-0.html>)]. Each year we\u2019ve looked back at all of the detected and disclosed in-the-wild 0-days as a group and synthesized what we think the trends and takeaways are. The goal of this report is not to detail each individual exploit, but instead to analyze the exploits from the year as a group, looking for trends, gaps, lessons learned, successes, etc. If you\u2019re interested in the analysis of individual exploits, please check out our [root cause analysis repository](<https://googleprojectzero.blogspot.com/p/rca.html>).\n\nWe perform and share this analysis in order to make 0-day hard. We want it to be more costly, more resource intensive, and overall more difficult for attackers to use 0-day capabilities. 2021 highlighted just how important it is to stay relentless in our pursuit to make it harder for attackers to exploit users with 0-days. We heard [over](<https://forbiddenstories.org/about-the-pegasus-project/>) and [over](<https://citizenlab.ca/2021/07/hooking-candiru-another-mercenary-spyware-vendor-comes-into-focus/>) and [over](<https://www.amnesty.org/en/latest/research/2021/11/devices-of-palestinian-human-rights-defenders-hacked-with-nso-groups-pegasus-spyware-2/>) about how governments were targeting journalists, minoritized populations, politicians, human rights defenders, and even security researchers around the world. The decisions we make in the security and tech communities can have real impacts on society and our fellow humans\u2019 lives.\n\nWe\u2019ll provide our evidence and process for our conclusions in the body of this post, and then wrap it all up with our thoughts on next steps and hopes for 2022 in the conclusion. If digging into the bits and bytes is not your thing, then feel free to just check-out the Executive Summary and Conclusion.\n\n# Executive Summary\n\n2021 included the detection and disclosure of 58 in-the-wild 0-days, the most ever recorded since Project Zero began tracking in mid-2014. That\u2019s more than double the previous maximum of 28 detected in 2015 and especially stark when you consider that there were only 25 detected in 2020. We\u2019ve tracked publicly known in-the-wild 0-day exploits in [this spreadsheet](<https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=0>) since mid-2014.\n\nWhile we often talk about the number of 0-day exploits used in-the-wild, what we\u2019re actually discussing is the number of 0-day exploits detected and disclosed as in-the-wild. And that leads into our first conclusion: we believe the large uptick in in-the-wild 0-days in 2021 is due to increased detection and disclosure of these 0-days, rather than simply increased usage of 0-day exploits.\n\nWith this record number of in-the-wild 0-days to analyze we saw that attacker methodology hasn\u2019t actually had to change much from previous years. Attackers are having success using the same bug patterns and exploitation techniques and going after the same attack surfaces. Project Zero\u2019s mission is \u201cmake 0day hard\u201d. 0-day will be harder when, overall, attackers are not able to use public methods and techniques for developing their 0-day exploits. When we look over these 58 0-days used in 2021, what we see instead are 0-days that are similar to previous &amp; publicly known vulnerabilities. Only two 0-days stood out as novel: one for the technical sophistication of its exploit and the other for its use of logic bugs to escape the sandbox.\n\nSo while we recognize the industry\u2019s improvement in the detection and disclosure of in-the-wild 0-days, we also acknowledge that there\u2019s a lot more improving to be done. Having access to more \u201cground truth\u201d of how attackers are actually using 0-days shows us that they are able to have success by using previously known techniques and methods rather than having to invest in developing novel techniques. This is a clear area of opportunity for the tech industry.\n\nWe had so many more data points in 2021 to learn about attacker behavior than we\u2019ve had in the past. Having all this data, though, has left us with even more questions than we had before. Unfortunately, attackers who actively use 0-day exploits do not share the 0-days they\u2019re using or what percentage of 0-days we\u2019re missing in our tracking, so we\u2019ll never know exactly what proportion of 0-days are currently being found and disclosed publicly. \n\nBased on our analysis of the 2021 0-days we hope to see the following progress in 2022 in order to continue taking steps towards making 0-day hard:\n\n 1. All vendors agree to disclose the in-the-wild exploitation status of vulnerabilities in their security bulletins.\n 2. Exploit samples or detailed technical descriptions of the exploits are shared more widely.\n 3. Continued concerted efforts on reducing memory corruption vulnerabilities or rendering them unexploitable.Launch mitigations that will significantly impact the exploitability of memory corruption vulnerabilities.\n\n# A Record Year for In-the-Wild 0-days\n\n2021 was a record year for in-the-wild 0-days. So what happened?\n\n[](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjC72HVhQEdwHNIzMiyb18bUFr6hPCWJiKL2Mm43-tW11qc0ucOPI8A9oChEXQe0-QNOBF83SIcfyjcyvPveuWvgipbiBzHWqZTx2-LilJFYIbx6uQeno9f481HJQ0CgylQkh8Ks7AbGC6tjhYDNBcI7jh6ihhzJATA0r_P4bQUBm-1lmHp2DPvWM6I/s1200/image1%287%29.png>)\n\nIs it that software security is getting worse? Or is it that attackers are using 0-day exploits more? Or has our ability to detect and disclose 0-days increased? When looking at the significant uptick from 2020 to 2021, we think it's mostly explained by the latter. While we believe there has been a steady growth in interest and investment in 0-day exploits by attackers in the past several years, and that security still needs to urgently improve, it appears that the security industry's ability to detect and disclose in-the-wild 0-day exploits is the primary explanation for the increase in observed 0-day exploits in 2021.\n\nWhile we often talk about \u201c0-day exploits used in-the-wild\u201d, what we\u2019re actually tracking are \u201c0-day exploits detected and disclosed as used in-the-wild\u201d. There are more factors than just the use that contribute to an increase in that number, most notably: detection and disclosure. Better detection of 0-day exploits and more transparently disclosed exploited 0-day vulnerabilities is a positive indicator for security and progress in the industry. \n\nOverall, we can break down the uptick in the number of in-the-wild 0-days into:\n\n * More detection of in-the-wild 0-day exploits\n * More public disclosure of in-the-wild 0-day exploitation\n\n## More detection\n\nIn the [2019 Year in Review](<https://googleprojectzero.blogspot.com/2020/07/detection-deficit-year-in-review-of-0.html>), we wrote about the \u201cDetection Deficit\u201d. We stated \u201cAs a community, our ability to detect 0-days being used in the wild is severely lacking to the point that we can\u2019t draw significant conclusions due to the lack of (and biases in) the data we have collected.\u201d In the last two years, we believe that there\u2019s been progress on this gap. \n\nAnecdotally, we hear from more people that they\u2019ve begun working more on detection of 0-day exploits. Quantitatively, while a very rough measure, we\u2019re also seeing the number of entities credited with reporting in-the-wild 0-days increasing. It stands to reason that if the number of people working on trying to find 0-day exploits increases, then the number of in-the-wild 0-day exploits detected may increase.\n\n[](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMbFpoEKSSn5AbAzsovaZ0yN6_OFXo9u4hpDCXJBpro8LRUWJlVQ9CSqtzT2V9ohrhOvP3_RnrYsOzFGPK0FZGJmW2713g2vVW82ReJVXpjAZc57BCxtHg8i-6AdR_ThDZB6UKvzAKekbmAkuUBliMyDyWSBW87z4ZZQJC3KX-_ptZIHveotLGoJ9I/s1200/image5%284%29.png>)\n\n[](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRS0t_2Bwvc3U_EIr5h7NcWpQyjzHCPb4OMiDpzPxPs587otAEj8bzwch8UMFlgKchwdSq4L_PXRn1O6KGLHUl4X9voLBdZJNQsgQyJcMCVB4Y8-aRHaXRpOYZw7KVtyNYwdWpwX8ILUV1fyG2kDsXVWORsSPUBGVTON90gWf9POhhxA4edxNe1eoV/s1200/image2%285%29.png>)\n\nWe\u2019ve also seen the number of vendors detecting in-the-wild 0-days in their own products increasing. Whether or not these vendors were previously working on detection, vendors seem to have found ways to be more successful in 2021. Vendors likely have the most telemetry and overall knowledge and visibility into their products so it\u2019s important that they are investing in (and hopefully having success in) detecting 0-days targeting their own products. As shown in the chart above, there was a significant increase in the number of in-the-wild 0-days discovered by vendors in their own products. Google discovered 7 of the in-the-wild 0-days in their own products and Microsoft discovered 10 in their products!\n\n## More disclosure\n\nThe second reason why the number of detected in-the-wild 0-days has increased is due to more disclosure of these vulnerabilities. Apple and Google Android (we differentiate \u201cGoogle Android\u201d rather than just \u201cGoogle\u201d because Google Chrome has been annotating their security bulletins for the last few years) first began labeling vulnerabilities in their security advisories with the information about potential in-the-wild exploitation in November 2020 and January 2021 respectively. When vendors don\u2019t annotate their release notes, the only way we know that a 0-day was exploited in-the-wild is if the researcher who discovered the exploitation comes forward. If Apple and Google Android had not begun annotating their release notes, the public would likely not know about at least 7 of the Apple in-the-wild 0-days and 5 of the Android in-the-wild 0-days. Why? Because these vulnerabilities were reported by \u201cAnonymous\u201d reporters. If the reporters didn\u2019t want credit for the vulnerability, it\u2019s unlikely that they would have gone public to say that there were indications of exploitation. That is 12 0-days that wouldn\u2019t have been included in this year\u2019s list if Apple and Google Android had not begun transparently annotating their security advisories. \n\n[](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPe_J-0Wu9Ap-0n3Yj5BoXiWTnjViyyGasIChhb3juADZosK9nTbyiaWtzuRyjwG3frQNjLsvRMRoQHrFfo1iKa3GjmcuLHqat40GcoechQ16XbhpVGwF7m_TJ0Oucvy3wvm8x0aXbVnJfhkG2FNkxI4cJf5ONBqEYnPxQDUmZChvByLHE8OzSU20N/s1200/image3%287%29.png>)\n\nKudos and thank you to Microsoft, Google Chrome, and Adobe who have been annotating their security bulletins for transparency for multiple years now! And thanks to Apache who also annotated their release notes for [CVE-2021-41773](<https://httpd.apache.org/security/vulnerabilities_24.html>) this past year. \n\nIn-the-wild 0-days in Qualcomm and ARM products were annotated as in-the-wild in Android security bulletins, but not in the vendor\u2019s own security advisories.\n\nIt's highly likely that in 2021, there were other 0-days that were exploited in the wild and detected, but vendors did not mention this in their release notes. In 2022, we hope that more vendors start noting when they patch vulnerabilities that have been exploited in-the-wild. Until we\u2019re confident that all vendors are transparently disclosing in-the-wild status, there\u2019s a big question of how many in-the-wild 0-days are discovered, but not labeled publicly by vendors.\n\n# New Year, Old Techniques\n\nWe had a record number of \u201cdata points\u201d in 2021 to understand how attackers are actually using 0-day exploits. A bit surprising to us though, out of all those data points, there was nothing new amongst all this data. 0-day exploits are considered one of the most advanced attack methods an actor can use, so it would be easy to conclude that attackers must be using special tricks and attack surfaces. But instead, the 0-days we saw in 2021 generally followed the same bug patterns, attack surfaces, and exploit \u201cshapes\u201d previously seen in public research. Once \u201c0-day is hard\u201d, we\u2019d expect that to be successful, attackers would have to find new bug classes of vulnerabilities in new attack surfaces using never before seen exploitation methods. In general, that wasn't what the data showed us this year. With two exceptions (described below in the iOS section) out of the 58, everything we saw was pretty \u201c[meh](<https://www.dictionary.com/browse/meh#:~:text=unimpressive%3B%20boring%3A>)\u201d or standard.\n\nOut of the 58 in-the-wild 0-days for the year, 39, or 67% were memory corruption vulnerabilities. Memory corruption vulnerabilities have been the standard for attacking software for the last few decades and it\u2019s still how attackers are having success. Out of these memory corruption vulnerabilities, the majority also stuck with very popular and well-known bug classes:\n\n * 17 use-after-free\n * 6 out-of-bounds read &amp; write\n * 4 buffer overflow\n * 4 integer overflow\n\nIn the next sections we\u2019ll dive into each major platform that we saw in-the-wild 0-days for this year. We\u2019ll share the trends and explain why what we saw was pretty unexceptional.\n\n## Chromium (Chrome)\n\nChromium had a record high number of 0-days detected and disclosed in 2021 with 14. Out of these 14, 10 were renderer remote code execution bugs, 2 were sandbox escapes, 1 was an infoleak, and 1 was used to open a webpage in Android apps other than Google Chrome.\n\nThe 14 0-day vulnerabilities were in the following components:\n\n * 6 JavaScript Engine - v8 ([CVE-2021-21148](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>), [CVE-2021-30551](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>), [CVE-2021-30563](<https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html>), [CVE-2021-30632](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30632.html>), [CVE-2021-37975](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-37975.html>), [CVE-2021-38003](<https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_28.html>))\n * 2 DOM Engine - Blink ([CVE-2021-21193](<https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html>) &amp; [CVE-2021-21206](<https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html>))\n * 1 WebGL ([CVE-2021-30554](<https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html>))\n * 1 IndexedDB ([CVE-2021-30633](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html>))\n * 1 webaudio ([CVE-2021-21166](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-21166.html>))\n * 1 Portals ([CVE-2021-37973](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html>))\n * 1 Android Intents ([CVE-2021-38000](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-38000.html>))\n * 1 Core ([CVE-2021-37976](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.html>))\n\nWhen we look at the components targeted by these bugs, they\u2019re all attack surfaces seen before in public security research and previous exploits. If anything, there are a few less DOM bugs and more targeting these other components of browsers like IndexedDB and WebGL than previously. 13 out of the 14 Chromium 0-days were memory corruption bugs. Similar to last year, most of those memory corruption bugs are use-after-free vulnerabilities.\n\nA couple of the Chromium bugs were even similar to previous in-the-wild 0-days. [CVE-2021-21166](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-21166.html>) is an issue in ScriptProcessorNode::Process() in webaudio where there\u2019s insufficient locks such that buffers are accessible in both the main thread and the audio rendering thread at the same time. [CVE-2019-13720](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2019/CVE-2019-13720.html>) is an in-the-wild 0-day from 2019. It was a vulnerability in ConvolverHandler::Process() in webaudio where there were also insufficient locks such that a buffer was accessible in both the main thread and the audio rendering thread at the same time.\n\n[CVE-2021-30632](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30632.html>) is another Chromium in-the-wild 0-day from 2021. It\u2019s a type confusion in the TurboFan JIT in Chromium\u2019s JavaScript Engine, v8, where Turbofan fails to deoptimize code after a property map is changed. [CVE-2021-30632](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30632.html>) in particular deals with code that stores global properties. [CVE-2020-16009](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-16009.html>) was also an in-the-wild 0-day that was due to Turbofan failing to deoptimize code after map deprecation.\n\n## WebKit (Safari)\n\nPrior to 2021, Apple had only acknowledged 1 publicly known in-the-wild 0-day targeting WebKit/Safari, and that was due the sharing by an external researcher. In 2021 there were 7. This makes it hard for us to assess trends or changes since we don\u2019t have historical samples to go off of. Instead, we\u2019ll look at 2021\u2019s WebKit bugs in the context of other Safari bugs not known to be in-the-wild and other browser in-the-wild 0-days. \n\nThe 7 in-the-wild 0-days targeted the following components:\n\n * 4 Javascript Engine - JavaScript Core ([CVE-2021-1870](<https://support.apple.com/en-us/HT212146>), [CVE-2021-1871](<https://support.apple.com/en-us/HT212146>), [CVE-2021-30663](<https://support.apple.com/en-us/HT212336>), [CVE-2021-30665](<https://support.apple.com/en-us/HT212336>))\n * 1 IndexedDB ([CVE-2021-30858](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30858.html>))\n * 1 Storage ([CVE-2021-30661](<https://support.apple.com/en-us/HT212317>))\n * 1 Plugins ([CVE-2021-1879](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1879.html>))\n\nThe one semi-surprise is that no DOM bugs were detected and disclosed. In previous years, vulnerabilities in the DOM engine have generally made up 15-20% of the in-the-wild browser 0-days, but none were detected and disclosed for WebKit in 2021. \n\nIt would not be surprising if attackers are beginning to shift to other modules, like third party libraries or things like IndexedDB. The modules may be more promising to attackers going forward because there\u2019s a better chance that the vulnerability may exist in multiple browsers or platforms. For example, the webaudio bug in Chromium, [CVE-2021-21166](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-21166.html>), also existed in WebKit and was fixed as [CVE-2021-1844](<https://support.apple.com/en-us/HT212223>), though there was no evidence it was exploited in-the-wild in WebKit. The IndexedDB in-the-wild 0-day that was used against Safari in 2021, [CVE-2021-30858](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30858.html>), was very, very similar to a [bug fixed in Chromium in January 2020](<https://bugs.chromium.org/p/chromium/issues/detail?id=1032890>).\n\n## Internet Explorer\n\nSince we began tracking in-the-wild 0-days, Internet Explorer has had a pretty consistent number of 0-days each year. 2021 actually tied 2016 for the most in-the-wild Internet Explorer 0-days we\u2019ve ever tracked even though Internet Explorer\u2019s market share of web browser users continues to decrease.\n\n[](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbMTlnGhVLcVL8K20S3s6hSrpyB6kZAA9CWvWNpn1isbEbLFv0c2rs_dPvM0ALT45NtTvyhp8rGehGDRIAEJ6OZYSkk5mezOEoPJOquVXXyHeqrVOvRGEiQHv_J7Je8Itjc5qhwXMCR-E4y79abuxiddCYoeF2VrVakY-L1q82NeMEPjTA0fFC-t8h/s1200/image4%286%29.png>)\n\nSo why are we seeing so little change in the number of in-the-wild 0-days despite the change in market share? Internet Explorer is still a ripe attack surface for initial entry into Windows machines, even if the user doesn\u2019t use Internet Explorer as their Internet browser. While the number of 0-days stayed pretty consistent to what we\u2019ve seen in previous years, the components targeted and the delivery methods of the exploits changed. 3 of the 4 0-days seen in 2021 targeted the MSHTML browser engine and were delivered via methods other than the web. Instead they were delivered to targets via Office documents or other file formats. \n\nThe four 0-days targeted the following components:\n\n * MSHTML browser engine ([CVE-2021-26411](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26411.html>), [CVE-2021-33742](<https://googleprojectzero.github.io/0days-in-the-wild/0day-RCAs/2021/CVE-2021-33742.html>), [CVE-2021-40444](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444>))\n * Javascript Engine - JScript9 ([CVE-2021-34448](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34448>))\n\nFor [CVE-2021-26411](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26411.html>) targets of the campaign initially received a .mht file, which prompted the user to open in Internet Explorer. Once it was opened in Internet Explorer, the exploit was downloaded and run. [CVE-2021-33742](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-33742.html>) and [CVE-2021-40444](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444>) were delivered to targets via malicious Office documents.\n\n[CVE-2021-26411](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26411.html>) and [CVE-2021-33742](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-33742.html>) were two common memory corruption bug patterns: a use-after-free due to a user controlled callback in between two actions using an object and the user frees the object during that callback and a buffer overflow.\n\nThere were a few different vulnerabilities used in the exploit chain that used [CVE-2021-40444](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444>), but the one within MSHTML was that as soon as the Office document was opened the payload would run: a CAB file was downloaded, decompressed, and then a function from within a DLL in that CAB was executed. Unlike the previous two MSHTML bugs, this was a logic error in URL parsing rather than a memory corruption bug.\n\n## Windows\n\nWindows is the platform where we\u2019ve seen the most change in components targeted compared with previous years. However, this shift has generally been in progress for a few years and predicted with the end-of-life of Windows 7 in 2020 and thus why it\u2019s still not especially novel.\n\nIn 2021 there were 10 Windows in-the-wild 0-days targeting 7 different components:\n\n * 2 Enhanced crypto provider ([CVE-2021-31199](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31199>), [CVE-2021-31201](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31201>))\n * 2 NTOS kernel ([CVE-2021-33771](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33771>), [CVE-2021-31979](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31979>))\n * 2 Win32k ([CVE-2021-1732](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1732.html>), [CVE-2021-40449](<https://securelist.com/mysterysnail-attacks-with-windows-zero-day/104509/>))\n * 1 Windows update medic ([CVE-2021-36948](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36948>)) \n * 1 SuperFetch ([CVE-2021-31955](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31955>))\n * 1 dwmcore.dll ([CVE-2021-28310](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-28310>))\n * 1 ntfs.sys ([CVE-2021-31956](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31956>))\n\nThe number of different components targeted is the shift from past years. For example, in 2019 75% of Windows 0-days targeted Win32k while in 2021 Win32k only made up 20% of the Windows 0-days. The reason that this was expected and predicted was that 6 out of 8 of those 0-days that targeted Win32k in 2019 did not target the latest release of Windows 10 at that time; they were targeting older versions. With Windows 10 Microsoft began dedicating more and more resources to locking down the attack surface of Win32k so as those older versions have hit end-of-life, Win32k is a less and less attractive attack surface.\n\nSimilar to the many Win32k vulnerabilities seen over the years, the two 2021 Win32k in-the-wild 0-days are due to custom user callbacks. The user calls functions that change the state of an object during the callback and Win32k does not correctly handle those changes. [CVE-2021-1732](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1732.html>) is a type confusion vulnerability due to a user callback in xxxClientAllocWindowClassExtraBytes which leads to out-of-bounds read and write. If NtUserConsoleControl is called during the callback a flag is set in the window structure to signal that a field is an offset into the kernel heap. xxxClientAllocWindowClassExtraBytes doesn\u2019t check this and writes that field as a user-mode pointer without clearing the flag. The first in-the-wild 0-day detected and disclosed in 2022, [CVE-2022-21882](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2022/CVE-2022-21882.html>), is due to [CVE-2021-1732](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1732.html>) actually not being fixed completely. The attackers found a way to bypass the original patch and still trigger the vulnerability. [CVE-2021-40449](<https://securelist.com/mysterysnail-attacks-with-windows-zero-day/104509/>) is a use-after-free in NtGdiResetDC due to the object being freed during the user callback. \n\n## iOS/macOS\n\nAs discussed in the \u201cMore disclosure\u201d section above, 2021 was the first full year that Apple annotated their release notes with in-the-wild status of vulnerabilities. 5 iOS in-the-wild 0-days were detected and disclosed this year. The first publicly known macOS in-the-wild 0-day ([CVE-2021-30869](<https://blog.google/threat-analysis-group/analyzing-watering-hole-campaign-using-macos-exploits/>)) was also found. In this section we\u2019re going to discuss iOS and macOS together because: 1) the two operating systems include similar components and 2) the sample size for macOS is very small (just this one vulnerability).\n\n[](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhPGaOlQUGIYyvpDY_M0rGh3JekH4mwXHfN459HYcklg74v4Mfp8j6fgh2SM09mjhA4svdgN_TdSN3R5Bb-DJTHnlo63qnRTsvLs1EZgAE3fBpRtsZhxKhyBNTb_khdS6mNT3EtSHnS_R-TshtHx-gSWnEPpHjmSqO_9Y7JxupGcDKZ0-xwsxgbX6zR/s1200/image6%284%29.png>)\n\nFor the 5 total iOS and macOS in-the-wild 0-days, they targeted 3 different attack surfaces:\n\n * IOMobileFrameBuffer ([CVE-2021-30807](<https://support.apple.com/en-us/HT212623>), [CVE-2021-30883](<https://support.apple.com/en-us/HT212846>))\n * XNU Kernel ([CVE-2021-1782](<https://support.apple.com/en-us/HT212146>) &amp; [CVE-2021-30869](<https://blog.google/threat-analysis-group/analyzing-watering-hole-campaign-using-macos-exploits/>))\n * CoreGraphics ([CVE-2021-30860](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>))\n * CommCenter ([FORCEDENTRY sandbox escape](<https://googleprojectzero.blogspot.com/2022/03/forcedentry-sandbox-escape.html>) \\- CVE requested, not yet assigned)\n\nThese 4 attack surfaces are not novel. IOMobileFrameBuffer has been a target of public security research for many years. For example, the Pangu Jailbreak from 2016 used [CVE-2016-4654](<https://www.blackhat.com/docs/us-16/materials/us-16-Wang-Pangu-9-Internals.pdf>), a heap buffer overflow in IOMobileFrameBuffer. IOMobileFrameBuffer manages the screen\u2019s frame buffer. For iPhone 11 (A13) and below, IOMobileFrameBuffer was a kernel driver. Beginning with A14, it runs on a coprocessor, the DCP. It\u2019s a popular attack surface because historically it\u2019s been accessible from sandboxed apps. In 2021 there were two in-the-wild 0-days in IOMobileFrameBuffer. [CVE-2021-30807](<https://support.apple.com/en-us/HT212623>) is an out-of-bounds read and [CVE-2021-30883](<https://support.apple.com/en-us/HT212846>) is an integer overflow, both common memory corruption vulnerabilities. In 2022, we already have another in-the-wild 0-day in IOMobileFrameBuffer, [CVE-2022-22587](<https://support.apple.com/en-us/HT213053>).\n\nOne iOS 0-day and the macOS 0-day both exploited vulnerabilities in the XNU kernel and both vulnerabilities were in code related to XNU\u2019s inter-process communication (IPC) functionality. [CVE-2021-1782](<https://support.apple.com/en-us/HT212146>) exploited a vulnerability in mach vouchers while [CVE-2021-30869](<https://blog.google/threat-analysis-group/analyzing-watering-hole-campaign-using-macos-exploits/>) exploited a vulnerability in mach messages. This is not the first time we\u2019ve seen iOS in-the-wild 0-days, much less public security research, targeting mach vouchers and mach messages. [CVE-2019-6625](<https://support.apple.com/en-us/HT209443>) was exploited as a part of [an exploit chain targeting iOS 11.4.1-12.1.2](<https://googleprojectzero.blogspot.com/2019/08/in-wild-ios-exploit-chain-5.html>) and was also a [vulnerability in mach vouchers](<https://googleprojectzero.blogspot.com/2019/01/voucherswap-exploiting-mig-reference.html>). \n\nMach messages have also been a popular target for public security research. In 2020 there were two in-the-wild 0-days also in mach messages: [CVE-2020-27932](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-27932.html>) &amp; [CVE-2020-27950](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-27950.html>). This year\u2019s [CVE-2021-30869](<https://blog.google/threat-analysis-group/analyzing-watering-hole-campaign-using-macos-exploits/>) is a pretty close variant to 2020\u2019s [CVE-2020-27932](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-27932.html>). Tielei Wang and Xinru Chi actually [presented on this vulnerability at zer0con 2021](<https://github.com/wangtielei/Slides/blob/main/zer0con21.pdf>) in April 2021. In their presentation, they explained that they found it while doing variant analysis on [CVE-2020-27932](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-27932.html>). [TieLei Wang explained via Twitter](<https://twitter.com/WangTielei/status/1486266258152726530>) that they had found the vulnerability in December 2020 and had noticed it was fixed in beta versions of iOS 14.4 and macOS 11.2 which is why they presented it at Zer0Con. The in-the-wild exploit only targeted macOS 10, but used the same exploitation technique as the one presented.\n\nThe two FORCEDENTRY exploits ([CVE-2021-30860](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>) and the [sandbox escape](<https://googleprojectzero.blogspot.com/2022/03/forcedentry-sandbox-escape.html>)) were the only times that made us all go \u201cwow!\u201d this year. For [CVE-2021-30860](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>), the integer overflow in CoreGraphics, it was because: \n\n 1. For years we\u2019ve all heard about how attackers are using 0-click iMessage bugs and finally we have a public example, and\n 2. The exploit was an impressive work of art. \n\nThe sandbox escape (CVE requested, not yet assigned) was impressive because it\u2019s one of the few times we\u2019ve seen a sandbox escape in-the-wild that uses only logic bugs, rather than the standard memory corruption bugs. \n\nFor [CVE-2021-30860](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>), the vulnerability itself wasn\u2019t especially notable: a classic integer overflow within the JBIG2 parser of the CoreGraphics PDF decoder. The exploit, though, was described by Samuel Gro\u00df &amp; Ian Beer as \u201cone of the most technically sophisticated exploits [they]\u2019ve ever seen\u201d. [Their blogpost shares all the details](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>), but the highlight is that the exploit uses the logical operators available in JBIG2 to build NAND gates which are used to build its own computer architecture. The exploit then writes the rest of its exploit using that new custom architecture. From their blogpost:\n\nUsing over 70,000 segment commands defining logical bit operations, they define a small computer architecture with features such as registers and a full 64-bit adder and comparator which they use to search memory and perform arithmetic operations. It's not as fast as Javascript, but it's fundamentally computationally equivalent.\n\nThe bootstrapping operations for the sandbox escape exploit are written to run on this logic circuit and the whole thing runs in this weird, emulated environment created out of a single decompression pass through a JBIG2 stream. It's pretty incredible, and at the same time, pretty terrifying.\n\nThis is an example of what making 0-day exploitation hard could look like: attackers having to develop a new and novel way to exploit a bug and that method requires lots of expertise and/or time to develop. This year, the two FORCEDENTRY exploits were the only 0-days out of the 58 that really impressed us. Hopefully in the future, the bar has been raised such that this will be required for any successful exploitation.\n\n## Android\n\nThere were 7 Android in-the-wild 0-days detected and disclosed this year. Prior to 2021 there had only been 1 and it was in 2019: [CVE-2019-2215](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2019/CVE-2019-2215.html>). Like WebKit, this lack of data makes it hard for us to assess trends and changes. Instead, we\u2019ll compare it to public security research.\n\nFor the 7 Android 0-days they targeted the following components:\n\n * Qualcomm Adreno GPU driver ([CVE-2020-11261](<https://source.android.com/security/bulletin/2021-01-01>), [CVE-2021-1905](<https://googleprojectzero.github.io/0days-in-the-wild/0day-RCAs/2021/CVE-2021-1905.html>), [CVE-2021-1906](<https://source.android.com/security/bulletin/2021-05-01>))\n * ARM Mali GPU driver ([CVE-2021-28663](<https://source.android.com/security/bulletin/2021-05-01>), [CVE-2021-28664](<https://source.android.com/security/bulletin/2021-05-01>))\n * Upstream Linux kernel ([CVE-2021-1048](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1048.html>), [CVE-2021-0920](<https://source.android.com/security/bulletin/2021-11-01#kernel-components>))\n\n5 of the 7 0-days from 2021 targeted GPU drivers. This is actually not that surprising when we consider the evolution of the Android ecosystem as well as recent public security research into Android. The Android ecosystem is quite fragmented: many different kernel versions, different manufacturer customizations, etc. If an attacker wants a capability against \u201cAndroid devices\u201d, they generally need to maintain many different exploits to have a decent percentage of the Android ecosystem covered. However, if the attacker chooses to target the GPU kernel driver instead of another component, they will only need to have two exploits since most Android devices use 1 of 2 GPUs: either the Qualcomm Adreno GPU or the ARM Mali GPU. \n\nPublic security research mirrored this choice in the last couple of years as well. When developing full exploit chains (for defensive purposes) to target Android devices, [Guang Gong](<https://github.com/secmob/TiYunZong-An-Exploit-Chain-to-Remotely-Root-Modern-Android-Devices/blob/master/us-20-Gong-TiYunZong-An-Exploit-Chain-to-Remotely-Root-Modern-Android-Devices-wp.pdf>), [Man Yue Mo](<https://securitylab.github.com/research/one_day_short_of_a_fullchain_android/>), and [Ben Hawkes](<https://googleprojectzero.blogspot.com/2020/09/attacking-qualcomm-adreno-gpu.html>) all chose to attack the GPU kernel driver for local privilege escalation. Seeing the in-the-wild 0-days also target the GPU was more of a confirmation rather than a revelation. Of the 5 0-days targeting GPU drivers, 3 were in the Qualcomm Adreno driver and 2 in the ARM Mali driver. \n\nThe two non-GPU driver 0-days ([CVE-2021-0920](<https://source.android.com/security/bulletin/2021-11-01#kernel-components>) and [CVE-2021-1048](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1048.html>)) targeted the upstream Linux kernel. Unfortunately, these 2 bugs shared a singular characteristic with the Android in-the-wild 0-day seen in 2019: all 3 were previously known upstream before their exploitation in Android. While the sample size is small, it\u2019s still quite striking to see that 100% of the known in-the-wild Android 0-days that target the kernel are bugs that actually were known about before their exploitation.\n\nThe vulnerability now referred to as [CVE-2021-0920](<https://source.android.com/security/bulletin/2021-11-01#kernel-components>) was actually found in September 2016 and [discussed on the Linux kernel mailing lists](<https://lore.kernel.org/lkml/CAOssrKcfncAYsQWkfLGFgoOxAQJVT2hYVWdBA6Cw7hhO8RJ_wQ@mail.gmail.com/>). A [patch was even developed back in 2016](<https://lore.kernel.org/lkml/1475150954-10152-1-git-send-email-mszeredi@redhat.com/>), but it didn\u2019t end up being submitted. The bug was finally [fixed in the Linux kernel in July 2021](<https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cbcf01128d0a92e131bd09f1688fe032480b65ca>) after the detection of the in-the-wild exploit targeting Android. The patch then made it into the [Android security bulletin in November 2021](<https://source.android.com/security/bulletin/2021-11-01#kernel-components>).\n\n[CVE-2021-1048](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1048.html>) remained unpatched in Android for 14 months after it was patched in the Linux kernel. The Linux kernel was actually only vulnerable to the issue for a few weeks, but due to Android patching practices, that few weeks became almost a year for some Android devices. If an Android OEM synced to the upstream kernel, then they likely were patched against the vulnerability at some point. But many devices, such as recent Samsung devices, had not and thus were left vulnerable.\n\n## Microsoft Exchange Server\n\nIn 2021, there were 5 in-the-wild 0-days targeting Microsoft Exchange Server. This is the first time any Exchange Server in-the-wild 0-days have been detected and disclosed since we began tracking in-the-wild 0-days. The first four ([CVE-2021-26855](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26855.html>), [CVE-2021-26857](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26857>), [CVE-2021-26858](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26858>), and [CVE-2021-27065](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27065>)) were all disclosed and patched at the same time and used together in a [single operation](<https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/>). The fifth ([CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>)) was patched on its own in November 2021. [CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>) was demonstrated at Tianfu Cup and then discovered in-the-wild by Microsoft. While no other in-the-wild 0-days were disclosed as part of the chain with [CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>), the attackers would have required at least another 0-day for successful exploitation since [CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>) is a post-authentication bug.\n\nOf the four Exchange in-the-wild 0-days used in the first campaign, [CVE-2021-26855](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26855.html>), which is also known as \u201cProxyLogon\u201d, is the only one that\u2019s pre-auth. [CVE-2021-26855](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26855.html>) is a server side request forgery (SSRF) vulnerability that allows unauthenticated attackers to send arbitrary HTTP requests as the Exchange server. The other three vulnerabilities were post-authentication. For example, [CVE-2021-26858](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26858>) and [CVE-2021-27065](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27065>) allowed attackers to write arbitrary files to the system. [CVE-2021-26857](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26857>) is a remote code execution vulnerability due to a deserialization bug in the Unified Messaging service. This allowed attackers to run code as the privileged SYSTEM user.\n\nFor the second campaign, [CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>), like [CVE-2021-26858](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26858>), is a post-authentication RCE vulnerability due to insecure deserialization. It seems that while attempting to harden Exchange, Microsoft inadvertently introduced another deserialization vulnerability.\n\nWhile there were a significant amount of 0-days in Exchange detected and disclosed in 2021, it\u2019s important to remember that they were all used as 0-day in only two different campaigns. This is an example of why we don\u2019t suggest using the number of 0-days in a product as a metric to assess the security of a product. Requiring the use of four 0-days for attackers to have success is preferable to an attacker only needing one 0-day to successfully gain access.\n\nWhile this is the first time Exchange in-the-wild 0-days have been detected and disclosed since Project Zero began our tracking, this is not unexpected. In 2020 there was [n-day exploitation of Exchange Servers](<https://www.cisa.gov/uscert/ncas/current-activity/2020/03/10/unpatched-microsoft-exchange-servers-vulnerable-cve-2020-0688>). Whether this was the first year that attackers began the 0-day exploitation or if this was the first year that defenders began detecting the 0-day exploitation, this is not an unexpected evolution and we\u2019ll likely see it continue into 2022.\n\n# Outstanding Questions\n\nWhile there has been progress on detection and disclosure, that progress has shown just how much work there still is to do. The more data we gained, the more questions that arose about biases in detection, what we\u2019re missing and why, and the need for more transparency from both vendors and researchers.\n\nUntil the day that attackers decide to happily share all their exploits with us, we can\u2019t fully know what percentage of 0-days are publicly known about. However when we pull together our expertise as security researchers and anecdotes from others in the industry, it paints a picture of some of the data we\u2019re very likely missing. From that, these are some of the key questions we\u2019re asking ourselves as we move into 2022:\n\n## Where are the [x] 0-days?\n\nDespite the number of 0-days found in 2021, there are key targets missing from the 0-days discovered. For example, we know that messaging applications like WhatsApp, Signal, Telegram, etc. are targets of interest to attackers and yet there\u2019s only 1 messaging app, in this case iMessage, 0-day found this past year. Since we began tracking in mid-2014 the total is two: a WhatsApp 0-day in 2019 and this iMessage 0-day found in 2021.\n\nAlong with messaging apps, there are other platforms/targets we\u2019d expect to see 0-days targeting, yet there are no or very few public examples. For example, since mid-2014 there\u2019s only one in-the-wild 0-day each for macOS and Linux. There are no known in-the-wild 0-days targeting cloud, CPU vulnerabilities, or other phone components such as the WiFi chip or the baseband.\n\nThis leads to the question of whether these 0-days are absent due to lack of detection, lack of disclosure, or both?\n\n## Do some vendors have no known in-the-wild 0-days because they\u2019ve never been found or because they don\u2019t publicly disclose?\n\nUnless a vendor has told us that they will publicly disclose exploitation status for all vulnerabilities in their platforms, we, the public, don\u2019t know if the absence of an annotation means that there is no known exploitation of a vulnerability or if there is, but the vendor is just not sharing that information publicly. Thankfully this question is something that has a pretty clear solution: all device and software vendors agreeing to publicly disclose when there is evidence to suggest that a vulnerability in their product is being exploited in-the-wild.\n\n## Are we seeing the same bug patterns because that\u2019s what we know how to detect?\n\nAs we described earlier in this report, all the 0-days we saw in 2021 had similarities to previously seen vulnerabilities. This leads us to wonder whether or not that\u2019s actually representative of what attackers are using. Are attackers actually having success exclusively using vulnerabilities in bug classes and components that are previously public? Or are we detecting all these 0-days with known bug patterns because that\u2019s what we know how to detect? Public security research would suggest that yes, attackers are still able to have success with using vulnerabilities in known components and bug classes the majority of the time. But we\u2019d still expect to see a few novel and unexpected vulnerabilities in the grouping. We posed this question back in the 2019 year-in-review and it still lingers. \n\n## Where are the spl0itz?\n\nTo successfully exploit a vulnerability there are two key pieces that make up that exploit: the vulnerability being exploited, and the exploitation method (how that vulnerability is turned into something useful). \n\nUnfortunately, this report could only really analyze one of these components: the vulnerability. Out of the 58 0-days, only 5 have an exploit sample publicly available. Discovered in-the-wild 0-days are the failure case for attackers and a key opportunity for defenders to learn what attackers are doing and make it harder, more time-intensive, more costly, to do it again. Yet without the exploit sample or a detailed technical write-up based upon the sample, we can only focus on fixing the vulnerability rather than also mitigating the exploitation method. This means that attackers are able to continue to use their existing exploit methods rather than having to go back to the design and development phase to build a new exploitation method. While acknowledging that sharing exploit samples can be challenging (we have that challenge too!), we hope in 2022 there will be more sharing of exploit samples or detailed technical write-ups so that we can come together to use every possible piece of information to make it harder for the attackers to exploit more users.\n\nAs an aside, if you have an exploit sample that you\u2019re willing to share with us, please reach out. Whether it\u2019s sharing with us and having us write a detailed technical description and analysis or having us share it publicly, we\u2019d be happy to work with you.\n\n# Conclusion\n\nLooking back on 2021, what comes to mind is \u201cbaby steps\u201d. We can see clear industry improvement in the detection and disclosure of 0-day exploits. But the better detection and disclosure has highlighted other opportunities for progress. As an industry we\u2019re not making 0-day hard. Attackers are having success using vulnerabilities similar to what we\u2019ve seen previously and in components that have previously been discussed as attack surfaces.The goal is to force attackers to start from scratch each time we detect one of their exploits: they\u2019re forced to discover a whole new vulnerability, they have to invest the time in learning and analyzing a new attack surface, they must develop a brand new exploitation method. And while we made distinct progress in detection and disclosure it has shown us areas where that can continue to improve.\n\nWhile this all may seem daunting, the promising part is that we\u2019ve done it before: we have made clear progress on previously daunting goals. In 2019, we discussed the large detection deficit for 0-day exploits and 2 years later more than double were detected and disclosed. So while there is still plenty more work to do, it\u2019s a tractable problem. There are concrete steps that the tech and security industries can take to make it even more progress: \n\n\n 1. Make it an industry standard behavior for all vendors to publicly disclose when there is evidence to suggest that a vulnerability in their product is being exploited,\n 2. Vendors and security researchers sharing exploit samples or detailed descriptions of the exploit techniques.\n 3. Continued concerted efforts on reducing memory corruption vulnerabilities or rendering them unexploitable.\n\nThrough 2021 we continually saw the real world impacts of the use of 0-day exploits against users and entities. Amnesty International, the Citizen Lab, and others highlighted [over](<https://citizenlab.ca/2021/10/breaking-news-new-york-times-journalist-ben-hubbard-pegasus/>) and [over](<https://www.amnesty.org/en/documents/doc10/4491/2021/en/>) how governments were using commercial surveillance products against [journalists](<https://forbiddenstories.org/pegasus-the-new-global-weapon-for-silencing-journalists/>), [human rights defenders](<https://www.amnesty.org/en/latest/research/2021/11/devices-of-palestinian-human-rights-defenders-hacked-with-nso-groups-pegasus-spyware-2/>), and [government officials](<https://www.reuters.com/technology/exclusive-us-state-department-phones-hacked-with-israeli-company-spyware-sources-2021-12-03/>). We saw many enterprises scrambling to remediate and protect themselves from the [Exchange Server 0-days](<https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/>). And we even learned of peer [security researchers being targeted by ](<https://blog.google/threat-analysis-group/update-campaign-targeting-security-researchers/>)[North Korean government hackers](<https://blog.google/threat-analysis-group/update-campaign-targeting-security-researchers/>). While the majority of people on the planet do not need to worry about their own personal risk of being targeted with 0-days, 0-day exploitation still affects us all. These 0-days tend to have an outsized impact on society so we need to continue doing whatever we can to make it harder for attackers to be successful in these attacks.\n\n2021 showed us we\u2019re on the right track and making progress, but there\u2019s plenty more to be done to make 0-day hard.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-04-19T00:00:00", "type": "googleprojectzero", "title": "\nThe More You Know, The More You Know You Don\u2019t Know\n", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2016-4654", "CVE-2019-13720", "CVE-2019-2215", "CVE-2019-6625", "CVE-2020-0688", "CVE-2020-11261", "CVE-2020-16009", "CVE-2020-27932", "CVE-2020-27950", "CVE-2021-0920", "CVE-2021-1048", "CVE-2021-1732", "CVE-2021-1782", "CVE-2021-1844", "CVE-2021-1870", "CVE-2021-1871", "CVE-2021-1879", "CVE-2021-1905", "CVE-2021-1906", "CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-26411", "CVE-2021-26855", "CVE-2021-26857", "CVE-2021-26858", "CVE-2021-27065", "CVE-2021-28310", "CVE-2021-28663", "CVE-2021-28664", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-30661", "CVE-2021-30663", "CVE-2021-30665", "CVE-2021-30737", "CVE-2021-30807", "CVE-2021-30858", "CVE-2021-30860", "CVE-2021-30869", "CVE-2021-30883", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31979", "CVE-2021-33742", "CVE-2021-33771", "CVE-2021-34448", "CVE-2021-36948", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976", "CVE-2021-38000", "CVE-2021-38003", "CVE-2021-40444", "CVE-2021-40449", "CVE-2021-41773", "CVE-2021-42321", "CVE-2022-21882", "CVE-2022-22587"], "modified": "2022-04-19T00:00:00", "id": "GOOGLEPROJECTZERO:CA925EE6A931620550EF819815B14156", "href": "https://googleprojectzero.blogspot.com/2022/04/the-more-you-know-more-you-know-you.html", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}]}