DATABASE RESOURCES PRICING ABOUT US

{"id": "QUALYSBLOG:0F0ACCA731E84F3B1067935E483FC950", "type": "qualysblog", "bulletinFamily": "blog", "title": "Microsoft and Adobe Patch Tuesday (August 2021) \u2013 Microsoft 51 Vulnerabilities with 7 Critical, Adobe 29 Vulnerabilities", "description": "### Microsoft Patch Tuesday \u2013 August 2021\n\nMicrosoft patched 51 vulnerabilities in their August 2021 Patch Tuesday release, and 7 of them are rated as critical severity. Three 0-day vulnerability patches were included in the release.\n\n#### Critical Microsoft Vulnerabilities Patched\n\n[CVE-2021-36942](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36942>) - Windows LSA Spoofing Vulnerability\n\nAn unauthenticated attacker could call a method on the LSARPC interface and coerce the domain controller to authenticate against another server using NTLM. A malicious user can use this attack to take complete control over windows domain Per Microsoft, this vulnerability affects all servers, but domain controllers should be prioritized in terms of applying security updates.\n\n[CVE-2021-34481](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34481>) \u2013 Windows Print Spooler Remote Code Execution Vulnerability\n\nA remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. This Patch Tuesday Microsoft released security updates to address this vulnerability and should be prioritized.\n\n#### Three 0-Day Vulnerabilities Patched\n\n * [CVE-2021-36936](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36936>) - Windows Print Spooler Remote Code Execution Vulnerability\n * [CVE-2021-36942](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36942>) - Windows LSA Spoofing Vulnerability\n * [CVE-2021-36948](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36948>) - Windows Update Medic Service Elevation of Privilege Vulnerability - This has been actively exploited, per Microsoft.\n\n#### Qualys QIDs Providing Coverage\n\n**QID**| **Title**| **Severity**| **CVE ID** \n---|---|---|--- \n110388| Microsoft SharePoint Enterprise Server Multiple Vulnerabilities August 2021| Medium| [_CVE-2021-36940_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36940>) \n110389| Microsoft Office and Microsoft Office Services and Web Apps Security Update August 2021 | High| [_CVE-2021-34478_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34478>), [_CVE-2021-36941_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36941>) \n375798| Microsoft Azure CycleCloud Elevation of Privilege Vulnerability August 2021 | Medium| [_CVE-2021-33762_](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33762>), [_CVE-2021-36943_](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36943>), [_KB3142345_](<https://www.microsoft.com/en-us/download/details.aspx?id=103313>) \n91801| Microsoft Dynamics Business Central Cross-Site (XSS) Scripting Vulnerability August 2021 | Medium | [_CVE-2021-36946_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36946>) \n91802| Microsoft Windows Security Update for August 2021 \n \n | High| CVE-2021-26424, [_CVE-2021-26425_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26425>), [_CVE-2021-26426_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26426>), [_CVE-2021-26431_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26431>), [_CVE-2021-26432_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26432>), [_CVE-2021-26433_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26433>), [_CVE-2021-34480_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34480>), [_CVE-2021-34483_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34483>), [_CVE-2021-34484_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34484>), [_CVE-2021-34486_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34486>), [_CVE-2021-34487_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34487>), [_CVE-2021-34530_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34530>), [_CVE-2021-34533_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34533>), [_CVE-2021-34534_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34534>), [_CVE-2021-34535_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34535>), [_CVE-2021-34536_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34536>), [_CVE-2021-34537_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34537>), [_CVE-2021-36926_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36926>), [_CVE-2021-36927_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36927>), [_CVE-2021-36932_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36932>), [_CVE-2021-36933_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36933>), [_CVE-2021-36936_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36936>), [_CVE-2021-36937_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36937>), [_CVE-2021-36938_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36938>), [_CVE-2021-36947_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36947>), [_CVE-2021-36948_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36948>) \n91803| Microsoft Windows Local Security Authority (LSA) Spoofing Vulnerability August 2021 | High| [_CVE-2021-36942_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36942>) \n91804| Microsoft Windows Defender Elevation of Privilege Vulnerability August 2021 | Medium| [_CVE-2021-34471_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34471>) \n91805| Microsoft Windows 10 Update Assistant Elevation of Privilege Vulnerability August 2021 | Medium | [_CVE-2021-36945_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36945>) \n91806| Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability August 2021 | Medium| [_CVE-2021-36949_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36949>) \n91774| Microsoft .NET Core and ASP.NET Core Security Update for August 2021 | High| [_CVE-2021-26423_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26423>), [_CVE-2021-34485_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34485>), [_CVE-2021-34532_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34532>) \n91809| Microsoft Visual Studio Security Update for August 2021 | Medium| [_CVE-2021-26423_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26423>), [_CVE-2021-34485_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34485>), [_CVE-2021-34532_](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34532>) \n \n### Adobe Patch Tuesday \u2013 August 2021\n\nAdobe addressed 29 CVEs this Patch Tuesday impacting Adobe Connect and Magento product. The patches for Magento are labeled as [Priority 2](<https://helpx.adobe.com/security/severity-ratings.html>), while the remaining patches are set to [Priority 3](<https://helpx.adobe.com/security/severity-ratings.html>).\n\n**Adobe Security Bulletin**| **QID**| **Severity**| **CVE ID** \n---|---|---|--- \nAdobe Connect Multiple Vulnerabilities (APSB21-66) | 730152| Medium| [CVE-2021-36061](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36061>), [CVE-2021-36062](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36062>), [CVE-2021-36063](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36063>) \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:`91774` OR qid:`91801` OR qid:`91802` OR qid:`91803` OR qid:`91804` OR qid:`91805` OR qid:`91806` OR qid:`91809` OR qid:`375798` OR qid:`110389` OR qid:`110388` OR qid:`730152`)`\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:`91774` OR qid:`91801` OR qid:`91802` OR qid:`91803` OR qid:`91804` OR qid:`91805` OR qid:`91806` OR qid:`91809` OR qid:`375798` OR qid:`110389` OR qid:`110388` OR qid:`730152`)`\n\n\n\n### Patch Tuesday Dashboard\n\nThe current updated Patch Tuesday dashboards are available in [Dashboard Toolbox: 2021 Patch Tuesday Dashboard](<https://success.qualys.com/discussions/s/article/000006505>).\n\n### Webinar Series: This Month in Vulnerabilities and 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 Vulnerabilities and Patches_](<https://www.brighttalk.com/webcast/11673/502309>).\n\nWe discuss some of the key vulnerabilities disclosed in the past month and how to patch them:\n\n * Microsoft Patch Tuesday, August 2021\n * Adobe Patch Tuesday, August 2021\n\n[Join us live or watch on demand!](<https://www.brighttalk.com/webcast/11673/502309>)\n\n[Webinar August 12, 2021 or on demand](<https://www.brighttalk.com/webcast/11673/502309>).\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>).", "published": "2021-08-10T19:58:49", "modified": "2021-08-10T19:58:49", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}, "cvss2": {"acInsufInfo": false, "cvssV2": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "MEDIUM", "userInteractionRequired": false}, "cvss3": {"cvssV3": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9}, "href": "https://blog.qualys.com/category/vulnerabilities-threat-research", "reporter": "Anand Paturi", "references": [], "cvelist": ["CVE-2021-26423", "CVE-2021-26424", "CVE-2021-26425", "CVE-2021-26426", "CVE-2021-26431", "CVE-2021-26432", "CVE-2021-26433", "CVE-2021-33762", "CVE-2021-34471", "CVE-2021-34478", "CVE-2021-34480", "CVE-2021-34481", "CVE-2021-34483", "CVE-2021-34484", "CVE-2021-34485", "CVE-2021-34486", "CVE-2021-34487", "CVE-2021-34530", "CVE-2021-34532", "CVE-2021-34533", "CVE-2021-34534", "CVE-2021-34535", "CVE-2021-34536", "CVE-2021-34537", "CVE-2021-36061", "CVE-2021-36062", "CVE-2021-36063", "CVE-2021-36926", "CVE-2021-36927", "CVE-2021-36932", "CVE-2021-36933", "CVE-2021-36936", "CVE-2021-36937", "CVE-2021-36938", "CVE-2021-36940", "CVE-2021-36941", "CVE-2021-36942", "CVE-2021-36943", "CVE-2021-36945", "CVE-2021-36946", "CVE-2021-36947", "CVE-2021-36948", "CVE-2021-36949"], "immutableFields": [], "lastseen": "2021-08-21T10:10:11", "viewCount": 80, "enchantments": {"dependencies": {"references": [{"type": "adobe", "idList": ["APSB21-66"]}, {"type": "almalinux", "idList": ["ALSA-2021:3142", "ALSA-2021:3145", "ALSA-2021:3148"]}, {"type": "altlinux", "idList": ["496B1C7F0A74889045035F35CB337521", "4CF1199DC1B5199B0BA33D69C92BF3C2", "5DDAD108F7FE5924C7BE3CF05512D135", "604DE0AF069AEA01CE31BF242C89ECD5", "64E9AF1E618EFA516550AF4FCE57DF85", "8C1741E72029ACF9033C718697E03763", "A541A1A1DC74F8223284BDEF29F3115E", "DB1C665A65A49B13890CBEA64F1D67A1"]}, {"type": "attackerkb", "idList": ["AKB:008B7980-D9F8-4D56-A194-F83ACBEEC5D4", "AKB:1196BAF9-A467-480D-A40C-F3E93D5888D6", "AKB:20A31239-28EC-43E3-854A-6CA8B1F44AB8", "AKB:2A1BFBBE-FD48-497E-8F3E-BB65670A94FA", "AKB:5ABBD3E2-AA30-41CB-96DA-34B5E76D030C", "AKB:C32E9872-B8A4-43F3-A8CC-05532AA65E51", "AKB:D92D1688-7724-40C4-AD86-DF44F4611D40"]}, {"type": "avleonov", "idList": ["AVLEONOV:3530747E605445686B7211B2B0853579", "AVLEONOV:535BC5E36A5D2C8F60753A2CD4676692", "AVLEONOV:8FE7F4C2B563A2A88EB2DA8822A13824"]}, {"type": "cert", "idList": ["VU:405600"]}, {"type": "checkpoint_advisories", "idList": ["CPAI-2021-0487", "CPAI-2021-0490", "CPAI-2021-0491", "CPAI-2021-0493", "CPAI-2021-0508"]}, {"type": "cisa", "idList": ["CISA:1AD0E0C2A1CB165DDD5F6A0F4C21101D"]}, {"type": "cve", "idList": ["CVE-2021-26423", "CVE-2021-26424", "CVE-2021-26425", "CVE-2021-26426", "CVE-2021-26431", "CVE-2021-26432", "CVE-2021-26433", "CVE-2021-33762", "CVE-2021-34471", "CVE-2021-34478", "CVE-2021-34480", "CVE-2021-34481", "CVE-2021-34483", "CVE-2021-34484", "CVE-2021-34485", "CVE-2021-34486", "CVE-2021-34487", "CVE-2021-34530", "CVE-2021-34532", "CVE-2021-34533", "CVE-2021-34534", "CVE-2021-34535", "CVE-2021-34536", "CVE-2021-34537", "CVE-2021-36061", "CVE-2021-36062", "CVE-2021-36063", "CVE-2021-36926", "CVE-2021-36927", "CVE-2021-36932", "CVE-2021-36933", "CVE-2021-36936", "CVE-2021-36937", "CVE-2021-36938", "CVE-2021-36940", "CVE-2021-36941", "CVE-2021-36942", "CVE-2021-36943", "CVE-2021-36945", "CVE-2021-36946", "CVE-2021-36947", "CVE-2021-36948", "CVE-2021-36949", "CVE-2021-36958"]}, {"type": "github", "idList": ["GHSA-Q7CG-43MG-QP69"]}, {"type": "githubexploit", "idList": ["2EECD021-D542-5268-A01E-89D736F540B6", "5E52E412-B5BA-54D6-92C1-F70C151A8199", "C9364BDE-48F8-5D2B-8852-D23E7FB2CDDC"]}, {"type": "googleprojectzero", "idList": ["GOOGLEPROJECTZERO:3A510C521DE8145372456D2B0FE8C8E5", "GOOGLEPROJECTZERO:3B4F7E79DDCD0AFF3B9BB86429182DCA", "GOOGLEPROJECTZERO:C8077AF60F0E22ECAD33F23194C38BB6", "GOOGLEPROJECTZERO:CA925EE6A931620550EF819815B14156"]}, {"type": "hivepro", "idList": ["HIVEPRO:1BBAC0CD5F3681EC49D06BE85DC90A92", "HIVEPRO:1C413EFAC97AED19F9E35574668008F9", "HIVEPRO:98B56CB60C0C2B248824B5ECAE47E387", "HIVEPRO:C0B03D521C5882F1BE07ECF1550A5F74", "HIVEPRO:E7F36EC1E4DCF018F94ECD22747B7093"]}, {"type": "ibm", "idList": ["AE395445C7C7240CD17B06CE58A20D98731AA33DE1AAF047F3A02C424CBD3F87"]}, {"type": "kaspersky", "idList": ["KLA12231", "KLA12246", "KLA12250", "KLA12255", "KLA12256", "KLA12257", "KLA12258", "KLA12259", "KLA12260"]}, {"type": "kitploit", "idList": ["KITPLOIT:1358590931647264988"]}, {"type": "krebs", "idList": ["KREBS:5FA70C019AB463F5E02A97C6891685D8", "KREBS:AE87E964E683A56CFE4E51E96F3530AD"]}, {"type": "malwarebytes", "idList": ["MALWAREBYTES:9F3181D8BD5EF0E44A305AF69898B9E0"]}, {"type": "metasploit", "idList": ["MSF:EXPLOIT-WINDOWS-LOCAL-CVE_2022_26904_SUPERPROFILE-"]}, {"type": "mmpc", "idList": ["MMPC:85647D37E79AFEF2BFF74B4682648C5E"]}, {"type": "mscve", "idList": ["MS:CVE-2021-26423", "MS:CVE-2021-26424", "MS:CVE-2021-26425", "MS:CVE-2021-26426", "MS:CVE-2021-26431", "MS:CVE-2021-26432", "MS:CVE-2021-26433", "MS:CVE-2021-33762", "MS:CVE-2021-34471", "MS:CVE-2021-34478", "MS:CVE-2021-34480", "MS:CVE-2021-34481", "MS:CVE-2021-34483", "MS:CVE-2021-34484", "MS:CVE-2021-34485", "MS:CVE-2021-34486", "MS:CVE-2021-34487", "MS:CVE-2021-34530", "MS:CVE-2021-34532", "MS:CVE-2021-34533", "MS:CVE-2021-34534", "MS:CVE-2021-34535", "MS:CVE-2021-34536", "MS:CVE-2021-34537", "MS:CVE-2021-36926", "MS:CVE-2021-36927", "MS:CVE-2021-36932", "MS:CVE-2021-36933", "MS:CVE-2021-36936", "MS:CVE-2021-36937", "MS:CVE-2021-36938", "MS:CVE-2021-36940", "MS:CVE-2021-36941", "MS:CVE-2021-36942", "MS:CVE-2021-36943", "MS:CVE-2021-36945", "MS:CVE-2021-36946", "MS:CVE-2021-36947", "MS:CVE-2021-36948", "MS:CVE-2021-36949"]}, {"type": "mskb", "idList": ["KB4011600", "KB4023814", "KB5002000", "KB5002002", "KB5005030", "KB5005031", "KB5005033", "KB5005036", "KB5005040", "KB5005043", "KB5005076", "KB5005088", "KB5005089", "KB5005090", "KB5005094", "KB5005095", "KB5005099", "KB5005106", "KB5005368", "KB5005369", "KB5005370", "KB5005373", "KB5005374", "KB5005606", "KB5005607", "KB5005613", "KB5005615", "KB5005618", "KB5005623", "KB5005627", "KB5005633"]}, {"type": "mssecure", "idList": ["MSSECURE:85647D37E79AFEF2BFF74B4682648C5E"]}, {"type": "nessus", "idList": ["ADOBE_CONNECT_APSB21-66.NASL", "AZURE_CYCLECLOUD_CVE-2021-33762.NASL", "AZURE_CYCLECLOUD_CVE-2021-36943.NASL", "CENTOS8_RHSA-2021-3142.NASL", "CENTOS8_RHSA-2021-3145.NASL", "CENTOS8_RHSA-2021-3148.NASL", "MACOSX_MS21_AUG_VISUAL_STUDIO.NASL", "MACOS_MS21_AUG_DOTNET_CORE.NASL", "MACOS_MS21_AUG_OFFICE.NASL", "ORACLELINUX_ELSA-2021-3142.NASL", "ORACLELINUX_ELSA-2021-3145.NASL", "ORACLELINUX_ELSA-2021-3148.NASL", "REDHAT-RHSA-2021-3142.NASL", "REDHAT-RHSA-2021-3143.NASL", "REDHAT-RHSA-2021-3144.NASL", "REDHAT-RHSA-2021-3145.NASL", "REDHAT-RHSA-2021-3147.NASL", "REDHAT-RHSA-2021-3148.NASL", "ROCKY_LINUX_RLSA-2021-3142.NASL", "ROCKY_LINUX_RLSA-2021-3145.NASL", "ROCKY_LINUX_RLSA-2021-3148.NASL", "SMB_NT_MS21_AUG_5005030.NASL", "SMB_NT_MS21_AUG_5005031.NASL", "SMB_NT_MS21_AUG_5005033.NASL", "SMB_NT_MS21_AUG_5005040.NASL", "SMB_NT_MS21_AUG_5005043.NASL", "SMB_NT_MS21_AUG_5005089.NASL", "SMB_NT_MS21_AUG_5005094.NASL", "SMB_NT_MS21_AUG_5005095.NASL", "SMB_NT_MS21_AUG_5005106.NASL", "SMB_NT_MS21_AUG_ASPDOTNET_CORE.NASL", "SMB_NT_MS21_AUG_AZURE_AD_CONNECT.NASL", "SMB_NT_MS21_AUG_DOTNET_CORE.NASL", "SMB_NT_MS21_AUG_INTERNET_EXPLORER.NASL", "SMB_NT_MS21_AUG_MICROSOFT_DYNAMICS.NASL", "SMB_NT_MS21_AUG_MICROSOFT_DYNAMICS_365_BC.NASL", 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"AKB:D92D1688-7724-40C4-AD86-DF44F4611D40"]}, {"type": "avleonov", "idList": ["AVLEONOV:3530747E605445686B7211B2B0853579"]}, {"type": "cert", "idList": ["VU:405600"]}, {"type": "checkpoint_advisories", "idList": ["CPAI-2021-0487", "CPAI-2021-0490", "CPAI-2021-0491", "CPAI-2021-0493", "CPAI-2021-0508"]}, {"type": "cisa", "idList": ["CISA:1AD0E0C2A1CB165DDD5F6A0F4C21101D"]}, {"type": "cve", "idList": ["CVE-2021-26423", "CVE-2021-26424", "CVE-2021-26425", "CVE-2021-26426", "CVE-2021-26431", "CVE-2021-26432", "CVE-2021-26433", "CVE-2021-33762", "CVE-2021-34471", "CVE-2021-34478", "CVE-2021-34480", "CVE-2021-34481", "CVE-2021-34483", "CVE-2021-34484", "CVE-2021-34485", "CVE-2021-34486", "CVE-2021-34487", "CVE-2021-34530", "CVE-2021-34532", "CVE-2021-34533", "CVE-2021-34534", "CVE-2021-34535", "CVE-2021-34536", "CVE-2021-34537", "CVE-2021-36926", "CVE-2021-36927", "CVE-2021-36932", "CVE-2021-36933", "CVE-2021-36936", "CVE-2021-36937", "CVE-2021-36938", "CVE-2021-36940", "CVE-2021-36941", "CVE-2021-36942", "CVE-2021-36943", "CVE-2021-36945", "CVE-2021-36946", "CVE-2021-36947", "CVE-2021-36948", "CVE-2021-36949"]}, {"type": "github", "idList": ["GHSA-Q7CG-43MG-QP69"]}, {"type": "githubexploit", "idList": ["2EECD021-D542-5268-A01E-89D736F540B6", "5E52E412-B5BA-54D6-92C1-F70C151A8199", "C9364BDE-48F8-5D2B-8852-D23E7FB2CDDC"]}, {"type": "googleprojectzero", "idList": ["GOOGLEPROJECTZERO:C8077AF60F0E22ECAD33F23194C38BB6"]}, {"type": "hivepro", "idList": ["HIVEPRO:1BBAC0CD5F3681EC49D06BE85DC90A92", "HIVEPRO:1C413EFAC97AED19F9E35574668008F9", "HIVEPRO:C0B03D521C5882F1BE07ECF1550A5F74"]}, {"type": "kaspersky", "idList": ["KLA12231", "KLA12246", "KLA12250", "KLA12255", "KLA12256", "KLA12257", "KLA12258", "KLA12259", "KLA12260"]}, {"type": "kitploit", "idList": ["KITPLOIT:1358590931647264988"]}, {"type": "krebs", "idList": ["KREBS:AE87E964E683A56CFE4E51E96F3530AD"]}, {"type": "malwarebytes", "idList": ["MALWAREBYTES:9F3181D8BD5EF0E44A305AF69898B9E0"]}, {"type": "mscve", "idList": ["MS:CVE-2021-26423", "MS:CVE-2021-26424", "MS:CVE-2021-26425", "MS:CVE-2021-26426", "MS:CVE-2021-26431", "MS:CVE-2021-26432", "MS:CVE-2021-26433", "MS:CVE-2021-33762", "MS:CVE-2021-34471", "MS:CVE-2021-34478", "MS:CVE-2021-34480", "MS:CVE-2021-34481", "MS:CVE-2021-34483", "MS:CVE-2021-34484", "MS:CVE-2021-34485", "MS:CVE-2021-34486", "MS:CVE-2021-34487", "MS:CVE-2021-34530", "MS:CVE-2021-34532", "MS:CVE-2021-34533", "MS:CVE-2021-34534", "MS:CVE-2021-34535", "MS:CVE-2021-34536", "MS:CVE-2021-34537", "MS:CVE-2021-36926", "MS:CVE-2021-36927", "MS:CVE-2021-36932", "MS:CVE-2021-36933", "MS:CVE-2021-36936", "MS:CVE-2021-36937", "MS:CVE-2021-36938", "MS:CVE-2021-36940", "MS:CVE-2021-36941", "MS:CVE-2021-36942", "MS:CVE-2021-36943", "MS:CVE-2021-36945", "MS:CVE-2021-36946", "MS:CVE-2021-36947", "MS:CVE-2021-36948", "MS:CVE-2021-36949"]}, {"type": "mskb", "idList": ["KB4023814", "KB5005033", "KB5005369", "KB5005370"]}, {"type": "nessus", "idList": ["ADOBE_CONNECT_APSB21-66.NASL", 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["ELSA-2021-3142", "ELSA-2021-3145", "ELSA-2021-3148"]}, {"type": "qualysblog", "idList": ["QUALYSBLOG:BC22CE22A3E70823D5F0E944CBD5CE4A"]}, {"type": "rapid7blog", "idList": ["RAPID7BLOG:03B1EB65D8A7CFE486943E2472225BA1", "RAPID7BLOG:5CDF95FB2AC31414FD390E0E0A47E057", "RAPID7BLOG:D9E3C0B84D67BD0A26DEAD5F6F4EAAC4", "RAPID7BLOG:DE426F8A59CA497BB6C0B90C0F1849CD"]}, {"type": "redhat", "idList": ["RHSA-2021:3143", "RHSA-2021:3147"]}, {"type": "redhatcve", "idList": ["RH:CVE-2021-26423", "RH:CVE-2021-34485", "RH:CVE-2021-34532"]}, {"type": "rocky", "idList": ["RLSA-2021:3142", "RLSA-2021:3145", "RLSA-2021:3148"]}, {"type": "securelist", "idList": ["SECURELIST:C540EBB7FD8B7FB9E54E119E88DB5C48"]}, {"type": "thn", "idList": ["THN:3F83D0C001F2A9046C61A56F5ABE7695", "THN:6428957E9DED493169A2E63839F98667", "THN:C2D8045AAD8E4BA5A9168782138B6D52", "THN:CF5E93184467C7B8F56A517CE724ABCF", "THN:F601EBBE359B3547B8E79F0217562FEF"]}, {"type": "threatpost", "idList": ["THREATPOST:8D4EA8B0593FD44763915E703BC9AB72", "THREATPOST:A8242348917526090B7A1B23735D5C6C", "THREATPOST:ADA9E95C8FD42722E783C74443148525"]}, {"type": "zdi", "idList": ["ZDI-21-1024", "ZDI-21-962", "ZDI-21-963", "ZDI-21-964", "ZDI-21-965", "ZDI-21-966", "ZDI-21-967", "ZDI-21-968"]}]}, "exploitation": null, "epss": [{"cve": "CVE-2021-26423", "epss": "0.001270000", "percentile": "0.457470000", "modified": "2023-03-17"}, {"cve": "CVE-2021-26424", "epss": "0.012610000", "percentile": "0.834980000", "modified": "2023-03-17"}, {"cve": "CVE-2021-26425", "epss": "0.000440000", "percentile": "0.105180000", "modified": "2023-03-17"}, {"cve": "CVE-2021-26426", "epss": "0.000440000", "percentile": "0.105180000", "modified": "2023-03-17"}, {"cve": "CVE-2021-26431", "epss": "0.000530000", "percentile": "0.191840000", "modified": "2023-03-17"}, {"cve": "CVE-2021-26432", "epss": "0.012610000", "percentile": "0.834980000", "modified": "2023-03-17"}, {"cve": "CVE-2021-26433", "epss": "0.002840000", "percentile": "0.637270000", "modified": "2023-03-17"}, {"cve": "CVE-2021-33762", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34471", "epss": "0.000430000", "percentile": "0.075560000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34478", "epss": "0.002260000", "percentile": "0.591070000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34480", "epss": "0.813640000", "percentile": "0.977710000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34481", "epss": "0.001190000", "percentile": "0.443290000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34483", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34484", "epss": "0.001340000", "percentile": "0.468400000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34485", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34486", "epss": "0.015930000", "percentile": "0.853730000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34487", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34530", "epss": "0.003670000", "percentile": "0.681480000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34532", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34533", "epss": "0.003670000", "percentile": "0.681480000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34534", "epss": "0.005240000", "percentile": "0.733450000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34535", "epss": "0.014450000", "percentile": "0.845950000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34536", "epss": "0.000430000", "percentile": "0.075560000", "modified": "2023-03-17"}, {"cve": "CVE-2021-34537", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36061", "epss": "0.000900000", "percentile": "0.367240000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36062", "epss": "0.000690000", "percentile": "0.279630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36063", "epss": "0.000690000", "percentile": "0.279630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36926", "epss": "0.002840000", "percentile": "0.637270000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36927", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36932", "epss": "0.002840000", "percentile": "0.637270000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36933", "epss": "0.002840000", "percentile": "0.637270000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36936", "epss": "0.012610000", "percentile": "0.834980000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36937", "epss": "0.003670000", "percentile": "0.681480000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36938", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36940", "epss": "0.000610000", "percentile": "0.237470000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36941", "epss": "0.003670000", "percentile": "0.681480000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36942", "epss": "0.903690000", "percentile": "0.982070000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36943", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36945", "epss": "0.000550000", "percentile": "0.208730000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36946", "epss": "0.000520000", "percentile": "0.180990000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36947", "epss": "0.016670000", "percentile": "0.856900000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36948", "epss": "0.001340000", "percentile": "0.467840000", "modified": "2023-03-17"}, {"cve": "CVE-2021-36949", "epss": "0.000430000", "percentile": "0.073630000", "modified": "2023-03-17"}], "vulnersScore": -0.1}, "_state": {"dependencies": 1660004461, "score": 1684008354, "epss": 1679107841}, "_internal": {"score_hash": 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*Description*:\nMultiple vulnerabilities were found in Microsoft Windows. Malicious users can exploit these vulnerabilities to execute arbitrary code, gain privileges, spoof user interface, cause denial of service, obtain sensitive information.\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 10 Version 1607 for 32-bit Systems \nWindows 10 Version 20H2 for x64-based Systems \nWindows 10 Version 1909 for ARM64-based Systems \nWindows Server 2008 R2 for x64-based Systems Service Pack 1 \nWindows Server 2008 for 32-bit Systems Service Pack 2 \nWindows 8.1 for 32-bit systems \nWindows Server 2019 (Server Core installation) \nWindows 10 Version 1809 for 32-bit Systems \nWindows Server 2016 (Server Core installation) \nWindows 10 for x64-based Systems \nWindows Server 2012 (Server Core installation) \nWindows 7 for 32-bit Systems Service Pack 1 \nWindows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) \nWindows 10 Version 2004 for ARM64-based Systems \nWindows 10 Version 1909 for 32-bit Systems \nWindows Server 2019 \nWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) \nWindows 10 Version 1607 for x64-based Systems \nWindows Server 2008 for x64-based Systems Service Pack 2 \nWindows 10 Version 1809 for x64-based Systems \nWindows 10 for 32-bit Systems \nWindows 10 Version 20H2 for 32-bit Systems \nWindows Server, version 20H2 (Server Core Installation) \nWindows 10 Version 2004 for x64-based Systems \nWindows Server 2012 R2 \nWindows 10 Version 21H1 for 32-bit Systems \nWindows Server 2016 \nWindows RT 8.1 \nWindows 10 Version 21H1 for ARM64-based Systems \nWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) \nWindows 10 Version 20H2 for ARM64-based Systems \nWindows Server 2012 \nWindows 8.1 for x64-based systems \nRemote Desktop client for Windows Desktop \nWindows 7 for x64-based Systems Service Pack 1 \nWindows 10 Version 1909 for x64-based Systems \nWindows 10 Version 2004 for 32-bit Systems \nWindows 10 Version 1809 for ARM64-based Systems \nWindows 10 Version 21H1 for x64-based Systems \nWindows Server 2012 R2 (Server Core installation) \nWindows Server, version 2004 (Server Core installation)\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-2021-36948](<https://nvd.nist.gov/vuln/detail/CVE-2021-36948>) \n[CVE-2021-26424](<https://nvd.nist.gov/vuln/detail/CVE-2021-26424>) \n[CVE-2021-26433](<https://nvd.nist.gov/vuln/detail/CVE-2021-26433>) \n[CVE-2021-36945](<https://nvd.nist.gov/vuln/detail/CVE-2021-36945>) \n[CVE-2021-26432](<https://nvd.nist.gov/vuln/detail/CVE-2021-26432>) \n[CVE-2021-36926](<https://nvd.nist.gov/vuln/detail/CVE-2021-36926>) \n[CVE-2021-36942](<https://nvd.nist.gov/vuln/detail/CVE-2021-36942>) \n[CVE-2021-36947](<https://nvd.nist.gov/vuln/detail/CVE-2021-36947>) \n[CVE-2021-34487](<https://nvd.nist.gov/vuln/detail/CVE-2021-34487>) \n[CVE-2021-34530](<https://nvd.nist.gov/vuln/detail/CVE-2021-34530>) \n[CVE-2021-34480](<https://nvd.nist.gov/vuln/detail/CVE-2021-34480>) \n[CVE-2021-34534](<https://nvd.nist.gov/vuln/detail/CVE-2021-34534>) \n[CVE-2021-36927](<https://nvd.nist.gov/vuln/detail/CVE-2021-36927>) \n[CVE-2021-34486](<https://nvd.nist.gov/vuln/detail/CVE-2021-34486>) \n[CVE-2021-36932](<https://nvd.nist.gov/vuln/detail/CVE-2021-36932>) \n[CVE-2021-34533](<https://nvd.nist.gov/vuln/detail/CVE-2021-34533>) \n[CVE-2021-34537](<https://nvd.nist.gov/vuln/detail/CVE-2021-34537>) \n[CVE-2021-36937](<https://nvd.nist.gov/vuln/detail/CVE-2021-36937>) \n[CVE-2021-36936](<https://nvd.nist.gov/vuln/detail/CVE-2021-36936>) \n[CVE-2021-26425](<https://nvd.nist.gov/vuln/detail/CVE-2021-26425>) \n[CVE-2021-34483](<https://nvd.nist.gov/vuln/detail/CVE-2021-34483>) \n[CVE-2021-26431](<https://nvd.nist.gov/vuln/detail/CVE-2021-26431>) \n[CVE-2021-26426](<https://nvd.nist.gov/vuln/detail/CVE-2021-26426>) \n[CVE-2021-34536](<https://nvd.nist.gov/vuln/detail/CVE-2021-34536>) \n[CVE-2021-34484](<https://nvd.nist.gov/vuln/detail/CVE-2021-34484>) \n[CVE-2021-34535](<https://nvd.nist.gov/vuln/detail/CVE-2021-34535>) \n[CVE-2021-36933](<https://nvd.nist.gov/vuln/detail/CVE-2021-36933>) \n[CVE-2021-36938](<https://nvd.nist.gov/vuln/detail/CVE-2021-36938>) \n\n\n### *Impacts*:\nACE \n\n### *Related products*:\n[Microsoft Windows](<https://threats.kaspersky.com/en/product/Microsoft-Windows/>)\n\n### *KB list*:\n[4023814](<http://support.microsoft.com/kb/4023814>) \n[5005036](<http://support.microsoft.com/kb/5005036>) \n[5005031](<http://support.microsoft.com/kb/5005031>) \n[5005033](<http://support.microsoft.com/kb/5005033>) \n[5005030](<http://support.microsoft.com/kb/5005030>) \n[5005106](<http://support.microsoft.com/kb/5005106>) \n[5005040](<http://support.microsoft.com/kb/5005040>) \n[5005099](<http://support.microsoft.com/kb/5005099>) \n[5005043](<http://support.microsoft.com/kb/5005043>) \n[5005076](<http://support.microsoft.com/kb/5005076>) \n[5005094](<http://support.microsoft.com/kb/5005094>) \n[5011535](<http://support.microsoft.com/kb/5011535>) \n[5011564](<http://support.microsoft.com/kb/5011564>) \n[5011560](<http://support.microsoft.com/kb/5011560>) \n[5011527](<http://support.microsoft.com/kb/5011527>)\n\n### *Microsoft official advisories*:", "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": "2021-08-10T00:00:00", "type": "kaspersky", "title": "KLA12259 Multiple vulnerabilities in Microsoft Windows", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26424", "CVE-2021-26425", "CVE-2021-26426", "CVE-2021-26431", "CVE-2021-26432", "CVE-2021-26433", "CVE-2021-34480", "CVE-2021-34483", "CVE-2021-34484", "CVE-2021-34486", "CVE-2021-34487", "CVE-2021-34530", "CVE-2021-34533", "CVE-2021-34534", "CVE-2021-34535", "CVE-2021-34536", "CVE-2021-34537", "CVE-2021-36926", "CVE-2021-36927", "CVE-2021-36932", "CVE-2021-36933", "CVE-2021-36936", "CVE-2021-36937", "CVE-2021-36938", "CVE-2021-36942", "CVE-2021-36945", "CVE-2021-36947", "CVE-2021-36948"], "modified": "2022-10-18T00:00:00", "id": "KLA12259", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12259/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-27T14:58:15", "description": "### *Detect date*:\n08/10/2021\n\n### *Severity*:\nCritical\n\n### *Description*:\nMultiple vulnerabilities were found in Microsoft Products (Extended Security Update). Malicious users can exploit these vulnerabilities to execute arbitrary code, gain privileges, spoof user interface, 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 10 Version 1607 for 32-bit Systems \nWindows 10 Version 20H2 for x64-based Systems \nWindows Server 2008 R2 for x64-based Systems Service Pack 1 \nWindows Server 2008 for 32-bit Systems Service Pack 2 \nWindows 8.1 for 32-bit systems \nWindows Server 2016 (Server Core installation) \nWindows 10 Version 1909 for ARM64-based Systems \nWindows Server 2019 (Server Core installation) \nWindows 10 Version 1809 for 32-bit Systems \nWindows 10 for x64-based Systems \nWindows Server 2012 (Server Core installation) \nWindows 7 for 32-bit Systems Service Pack 1 \nWindows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) \nWindows 10 Version 2004 for ARM64-based Systems \nWindows 10 Version 1909 for 32-bit Systems \nWindows Server 2019 \nWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) \nWindows 10 Version 1607 for x64-based Systems \nWindows Server 2008 for x64-based Systems Service Pack 2 \nWindows 10 Version 1809 for x64-based Systems \nWindows 10 for 32-bit Systems \nWindows 10 Version 20H2 for 32-bit Systems \nWindows Server, version 20H2 (Server Core Installation) \nWindows Server 2012 R2 \nWindows 10 Version 2004 for x64-based Systems \nWindows 10 Version 21H1 for 32-bit Systems \nWindows Server 2016 \nWindows RT 8.1 \nWindows 10 Version 21H1 for ARM64-based Systems \nWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) \nWindows 10 Version 20H2 for ARM64-based Systems \nWindows Server 2012 \nWindows 8.1 for x64-based systems \nRemote Desktop client for Windows Desktop \nWindows 7 for x64-based Systems Service Pack 1 \nWindows 10 Version 1909 for x64-based Systems \nWindows 10 Version 2004 for 32-bit Systems \nWindows 10 Version 1809 for ARM64-based Systems \nWindows 10 Version 21H1 for x64-based Systems \nWindows Server 2012 R2 (Server Core installation) \nWindows Server, version 2004 (Server Core installation)\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-2021-34533](<https://nvd.nist.gov/vuln/detail/CVE-2021-34533>) \n[CVE-2021-26424](<https://nvd.nist.gov/vuln/detail/CVE-2021-26424>) \n[CVE-2021-34537](<https://nvd.nist.gov/vuln/detail/CVE-2021-34537>) \n[CVE-2021-26425](<https://nvd.nist.gov/vuln/detail/CVE-2021-26425>) \n[CVE-2021-36936](<https://nvd.nist.gov/vuln/detail/CVE-2021-36936>) \n[CVE-2021-34483](<https://nvd.nist.gov/vuln/detail/CVE-2021-34483>) \n[CVE-2021-36937](<https://nvd.nist.gov/vuln/detail/CVE-2021-36937>) \n[CVE-2021-36942](<https://nvd.nist.gov/vuln/detail/CVE-2021-36942>) \n[CVE-2021-36947](<https://nvd.nist.gov/vuln/detail/CVE-2021-36947>) \n[CVE-2021-34484](<https://nvd.nist.gov/vuln/detail/CVE-2021-34484>) \n[CVE-2021-34535](<https://nvd.nist.gov/vuln/detail/CVE-2021-34535>) \n[CVE-2021-36927](<https://nvd.nist.gov/vuln/detail/CVE-2021-36927>) \n[CVE-2021-34480](<https://nvd.nist.gov/vuln/detail/CVE-2021-34480>) \n\n\n### *Impacts*:\nACE \n\n### *Related products*:\n[Microsoft Windows](<https://threats.kaspersky.com/en/product/Microsoft-Windows/>)\n\n### *KB list*:\n[5005090](<http://support.microsoft.com/kb/5005090>) \n[5005089](<http://support.microsoft.com/kb/5005089>) \n[5005036](<http://support.microsoft.com/kb/5005036>) \n[5005095](<http://support.microsoft.com/kb/5005095>) \n[5005088](<http://support.microsoft.com/kb/5005088>) \n[5011525](<http://support.microsoft.com/kb/5011525>) \n[5011534](<http://support.microsoft.com/kb/5011534>) \n[5011552](<http://support.microsoft.com/kb/5011552>) \n[5011529](<http://support.microsoft.com/kb/5011529>)\n\n### *Microsoft official advisories*:", "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": "2021-08-10T00:00:00", "type": "kaspersky", "title": "KLA12250 Multiple vulnerabilities in Microsoft Products (ESU)", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26424", "CVE-2021-26425", "CVE-2021-34480", "CVE-2021-34483", "CVE-2021-34484", "CVE-2021-34533", "CVE-2021-34535", "CVE-2021-34537", "CVE-2021-36927", "CVE-2021-36936", "CVE-2021-36937", "CVE-2021-36942", "CVE-2021-36947"], "modified": "2022-03-09T00:00:00", "id": "KLA12250", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12250/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:30:59", "description": "### *Detect date*:\n08/10/2021\n\n### *Severity*:\nWarning\n\n### *Description*:\nMultiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to spoof user interface, execute arbitrary code.\n\n### *Affected products*:\nMicrosoft Word 2016 (64-bit edition) \nMicrosoft Office 2013 RT Service Pack 1 \nMicrosoft SharePoint Foundation 2013 Service Pack 1 \nMicrosoft SharePoint Server 2019 \nMicrosoft SharePoint Enterprise Server 2016 \nMicrosoft Word 2016 (32-bit edition) \nMicrosoft Office 2019 for 64-bit editions \nMicrosoft Office 2013 Service Pack 1 (64-bit editions) \nMicrosoft Office 2016 (64-bit edition) \nMicrosoft 365 Apps for Enterprise for 64-bit Systems \nMicrosoft Office 2019 for Mac \nMicrosoft Office Online Server \nMicrosoft SharePoint Enterprise Server 2013 Service Pack 1 \nMicrosoft Excel 2013 Service Pack 1 (64-bit editions) \nMicrosoft Excel 2013 RT Service Pack 1 \nMicrosoft Office 2019 for 32-bit editions \nMicrosoft Office 2013 Service Pack 1 (32-bit editions) \nMicrosoft Excel 2013 Service Pack 1 (32-bit editions) \nMicrosoft Excel 2016 (32-bit edition) \nMicrosoft Excel 2016 (64-bit edition) \nMicrosoft Office 2016 (32-bit edition) \nMicrosoft 365 Apps for Enterprise for 32-bit Systems \nMicrosoft Office Web Apps Server 2013 Service Pack 1\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-2021-36940](<https://nvd.nist.gov/vuln/detail/CVE-2021-36940>) \n[CVE-2021-34478](<https://nvd.nist.gov/vuln/detail/CVE-2021-34478>) \n[CVE-2021-36941](<https://nvd.nist.gov/vuln/detail/CVE-2021-36941>) \n\n\n### *Impacts*:\nACE \n\n### *Related products*:\n[Microsoft Office PowerPoint](<https://threats.kaspersky.com/en/product/Microsoft-Office-PowerPoint/>)\n\n### *KB list*:\n[4011600](<http://support.microsoft.com/kb/4011600>) \n[5002000](<http://support.microsoft.com/kb/5002000>) \n[5002002](<http://support.microsoft.com/kb/5002002>)", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-08-10T00:00:00", "type": "kaspersky", "title": "KLA12255 Multiple vulnerabilities in Microsoft Office", "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-2021-34478", "CVE-2021-36940", "CVE-2021-36941"], "modified": "2021-08-12T00:00:00", "id": "KLA12255", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12255/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-27T14:58:02", "description": "### *Detect date*:\n08/10/2021\n\n### *Severity*:\nHigh\n\n### *Description*:\nMultiple vulnerabilities were found in Microsoft Developer Tools. Malicious users can exploit these vulnerabilities to obtain sensitive information, cause denial of service.\n\n### *Affected products*:\n.NET 5.0 \n.NET Core 2.1 \n.NET Core 3.1\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-2021-34485](<https://nvd.nist.gov/vuln/detail/CVE-2021-34485>) \n[CVE-2021-34532](<https://nvd.nist.gov/vuln/detail/CVE-2021-34532>) \n[CVE-2021-26423](<https://nvd.nist.gov/vuln/detail/CVE-2021-26423>) \n\n\n### *Impacts*:\nOSI \n\n### *Related products*:\n[Microsoft .NET Framework](<https://threats.kaspersky.com/en/product/Microsoft-.NET-Framework/>)", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-08-10T00:00:00", "type": "kaspersky", "title": "KLA12257 Multiple vulnerabilities in Microsoft Developer Tools", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-12T00:00:00", "id": "KLA12257", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12257/", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T14:58:01", "description": "### *Detect date*:\n08/10/2021\n\n### *Severity*:\nHigh\n\n### *Description*:\nMultiple vulnerabilities were found in Microsoft Azure. Malicious users can exploit these vulnerabilities to bypass security restrictions, obtain sensitive information, gain privileges, cause denial of service.\n\n### *Affected products*:\nMicrosoft Azure Active Directory Connect 2.0.X.Y \nAzure Active Directory Connect Provisioning Agent \nAzure Sphere \nAzure CycleCloud 8.2.0\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-2021-36949](<https://nvd.nist.gov/vuln/detail/CVE-2021-36949>) \n[CVE-2021-26428](<https://nvd.nist.gov/vuln/detail/CVE-2021-26428>) \n[CVE-2021-26429](<https://nvd.nist.gov/vuln/detail/CVE-2021-26429>) \n[CVE-2021-36943](<https://nvd.nist.gov/vuln/detail/CVE-2021-36943>) \n[CVE-2021-33762](<https://nvd.nist.gov/vuln/detail/CVE-2021-33762>) \n[CVE-2021-26430](<https://nvd.nist.gov/vuln/detail/CVE-2021-26430>) \n\n\n### *Impacts*:\nOSI \n\n### *Related products*:\n[Microsoft Active Directory](<https://threats.kaspersky.com/en/product/Microsoft-Active-Directory/>)", "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": "2021-08-10T00:00:00", "type": "kaspersky", "title": "KLA12258 Multiple vulnerabilities in Microsoft Azure", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 4.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.9, "vectorString": "AV:A/AC:M/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "ADJACENT_NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26428", "CVE-2021-26429", "CVE-2021-26430", "CVE-2021-33762", "CVE-2021-36943", "CVE-2021-36949"], "modified": "2021-08-12T00:00:00", "id": "KLA12258", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12258/", "cvss": {"score": 4.9, "vector": "AV:A/AC:M/Au:S/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:30:58", "description": "### *Detect date*:\n08/10/2021\n\n### *Severity*:\nWarning\n\n### *Description*:\nAn elevation of privilege vulnerability was found in Microsoft System Center. Malicious users can exploit this vulnerability to gain privileges.\n\n### *Affected products*:\nSystem Center 2019 Operations Manager \nMicrosoft Endpoint Protection \nMicrosoft System Center 2012 R2 Endpoint Protection \nMicrosoft Security Essentials \nMicrosoft System Center 2012 Endpoint Protection \nWindows Defender \nMicrosoft System Center Endpoint Protection\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-2021-34471](<https://nvd.nist.gov/vuln/detail/CVE-2021-34471>) \n\n\n### *Impacts*:\nPE \n\n### *Related products*:\n[Microsoft System Center Operations Manager](<https://threats.kaspersky.com/en/product/Microsoft-System-Center-Operations-Manager/>)", "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": "2021-08-10T00:00:00", "type": "kaspersky", "title": "KLA12256 PE vulnerability in Microsoft System Center", "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-2021-34471"], "modified": "2021-08-12T00:00:00", "id": "KLA12256", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12256/", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}], "hivepro": [{"lastseen": "2021-08-23T15:19:10", "description": "#### THREAT LEVEL: Red.\n\nFor a detailed advisory, [download the pdf file here.](<https://www.hivepro.com/wp-content/uploads/2021/08/TA202129.pdf>)\n\nMultiple vulnerabilities have been patched by Microsoft in August 2021 Patch Tuesday. Three of them have been labeled as zero-day vulnerabilities (CVE-2021-36936, CVE-2021-36942, and CVE-2021-36948). One of them (CVE-2021-36948) has already been exploited in the wild. The attacker is yet to be identified. Microsoft has classified six vulnerabilities as critical, and patches for all of them are now available.\n\n#### Vulnerability Details\n\n \n\n#### Patch Links\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36948>\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34530>\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34534>\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36936>\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26432>\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34480>\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34535>\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26424>\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36942>\n\n#### References\n\n<https://www.bleepingcomputer.com/news/microsoft/microsoft-august-2021-patch-tuesday-fixes-3-zero-days-44-flaws/>", "cvss3": {}, "published": "2021-08-11T13:25:48", "type": "hivepro", "title": "Critical Vulnerabilities revealed in Microsoft\u2019s Patch Tuesday", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-26424", "CVE-2021-26432", "CVE-2021-34480", "CVE-2021-34530", "CVE-2021-34534", "CVE-2021-34535", "CVE-2021-36936", "CVE-2021-36942", "CVE-2021-36948"], "modified": "2021-08-11T13:25:48", "id": "HIVEPRO:1BBAC0CD5F3681EC49D06BE85DC90A92", "href": "https://www.hivepro.com/critical-vulnerabilities-revealed-in-microsofts-patch-tuesday/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "rapid7blog": [{"lastseen": "2021-08-21T10:49:33", "description": "\n\nHot off the press, it\u2019s another issue of the Patch Tuesday blog! While the number of vulnerabilities is low this month, there are a number of high risk items administrators will want to patch right away including a few that will require additional remediation steps. This Patch Tuesday also includes updates for three vulnerabilities that were publicly disclosed earlier this month. Let\u2019s jump in.\n\n## Windows Elevation of Privilege Vulnerability aka HiveNightmare/SeriousSAM\n\n<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36934> \nWith a public proof-of-concept having been available for some time, administrators should prioritize taking action on CVE-2021-36934. Remediation for this vulnerability requires volume shadow copies for system files to be deleted. This is due to the nature of the vulnerability, as the files with the vulnerable permissions could be restored from a backup and accessed even after the patch is installed. Microsoft indicates they took caution not to delete users' backups, but the trade-off is that customers will need to do the chore themselves. We've updated [our blog post](<https://www.rapid7.com/blog/post/2021/07/21/microsoft-sam-file-readability-cve-2021-36934-what-you-need-to-know/>) with this additional information.\n\n## Windows LSA Spoofing Vulnerability aka ADV210003\n\n<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942> \nAnother high priority action for patching teams is CVE-2021-36942. This update patches one of the vectors used in the PetitPotam attack. After applying this update there are additional configurations required in order to protect systems from other attack vectors using registry keys. The InsightVM team has included detection for the registry keys needed to enable EPA and SMB Signing in addition to the normal update. Please see [our blog post](<https://www.rapid7.com/blog/post/2021/08/03/petitpotam-novel-attack-chain-can-fully-compromise-windows-domains-running-ad-cs/>) for more information.\n\n## Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26432> \nWhile Microsoft has not offered up any details for this vulnerability we can glean some info from the CVSS information. This remote code execution vulnerability is reachable from the network service with no authentication or user action required. There may not be an exploit available for this yet, but Microsoft indicates that \u201cExploitation [is] more likely\u201d. Put this update near the top of your TODO list.\n\n## Windows TCP/IP Remote Code Execution Vulnerability\n\n<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26424> \nLast on our list is a vulnerability that can result in remote execution on a Hyper-V host via the IPv6 networking stack. If Hyper-V is used in your environment this should be first on your list this month. \n\n## Summary Graphs\n\n\n\n## Summary Tables\n\n## Azure Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-36949](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36949>) | Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability | No | No | 7.1 | Yes \n[CVE-2021-26428](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26428>) | Azure Sphere Information Disclosure Vulnerability | No | No | 4.4 | Yes \n[CVE-2021-26429](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26429>) | Azure Sphere Elevation of Privilege Vulnerability | No | No | 7.7 | Yes \n[CVE-2021-26430](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26430>) | Azure Sphere Denial of Service Vulnerability | No | No | 6 | Yes \n[CVE-2021-33762](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33762>) | Azure CycleCloud Elevation of Privilege Vulnerability | No | No | 7 | No \n[CVE-2021-36943](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36943>) | Azure CycleCloud Elevation of Privilege Vulnerability | No | No | 4 | No \n \n## Browser Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-30597](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30597>) | Chromium: CVE-2021-30597 Use after free in Browser UI | No | No | | Yes \n[CVE-2021-30596](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30596>) | Chromium: CVE-2021-30596 Incorrect security UI in Navigation | No | No | | Yes \n[CVE-2021-30594](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30594>) | Chromium: CVE-2021-30594 Use after free in Page Info UI | No | No | | Yes \n[CVE-2021-30593](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30593>) | Chromium: CVE-2021-30593 Out of bounds read in Tab Strip | No | No | | Yes \n[CVE-2021-30592](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30592>) | Chromium: CVE-2021-30592 Out of bounds write in Tab Groups | No | No | | Yes \n[CVE-2021-30591](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30591>) | Chromium: CVE-2021-30591 Use after free in File System API | No | No | | Yes \n[CVE-2021-30590](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30590>) | Chromium: CVE-2021-30590 Heap buffer overflow in Bookmarks | No | No | | Yes \n \n## Developer Tools Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-34532](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34532>) | ASP.NET Core and Visual Studio Information Disclosure Vulnerability | No | No | 5.5 | Yes \n[CVE-2021-34485](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34485>) | .NET Core and Visual Studio Information Disclosure Vulnerability | No | No | 5 | Yes \n[CVE-2021-26423](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26423>) | .NET Core and Visual Studio Denial of Service Vulnerability | No | No | 7.5 | No \n \n## Microsoft Dynamics Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-36946](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36946>) | Microsoft Dynamics Business Central Cross-site Scripting Vulnerability | No | No | 5.4 | No \n[CVE-2021-34524](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34524>) | Microsoft Dynamics 365 (on-premises) Remote Code Execution Vulnerability | No | No | 8.1 | No \n[CVE-2021-36950](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36950>) | Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability | No | No | 5.4 | No \n \n## Microsoft Office Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-36941](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36941>) | Microsoft Word Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-36940](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36940>) | Microsoft SharePoint Server Spoofing Vulnerability | No | No | 7.6 | No \n[CVE-2021-34478](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34478>) | Microsoft Office Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n \n## System Center Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-34471](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34471>) | Microsoft Windows Defender Elevation of Privilege Vulnerability | No | No | 7.8 | Yes \n \n## Windows Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-26426](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26426>) | Windows User Account Profile Picture Elevation of Privilege Vulnerability | No | No | 7 | No \n[CVE-2021-36948](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36948>) | Windows Update Medic Service Elevation of Privilege Vulnerability | Yes | No | 7.8 | No \n[CVE-2021-26432](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26432>) | Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability | No | No | 9.8 | No \n[CVE-2021-26433](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26433>) | Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability | No | No | 7.5 | Yes \n[CVE-2021-36926](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36926>) | Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability | No | No | 7.5 | Yes \n[CVE-2021-36932](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36932>) | Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability | No | No | 7.5 | Yes \n[CVE-2021-36933](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36933>) | Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability | No | No | 7.5 | Yes \n[CVE-2021-26431](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26431>) | Windows Recovery Environment Agent Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-34534](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34534>) | Windows MSHTML Platform Remote Code Execution Vulnerability | No | No | 6.8 | Yes \n[CVE-2021-34530](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34530>) | Windows Graphics Component Remote Code Execution Vulnerability | No | No | 7.8 | No \n[CVE-2021-34486](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34486>) | Windows Event Tracing Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-34487](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34487>) | Windows Event Tracing Elevation of Privilege Vulnerability | No | No | 7 | No \n[CVE-2021-36938](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36938>) | Windows Cryptographic Primitives Library Information Disclosure Vulnerability | No | No | 5.5 | No \n[CVE-2021-36945](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36945>) | Windows 10 Update Assistant Elevation of Privilege Vulnerability | No | No | 7.3 | No \n[CVE-2021-34536](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34536>) | Storage Spaces Controller Elevation of Privilege Vulnerability | No | No | 7.8 | No \n \n## Windows ESU Vulnerabilities\n\nCVE | Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-34484](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34484>) | Windows User Profile Service Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-26424](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26424>) | Windows TCP/IP Remote Code Execution Vulnerability | No | No | 9.9 | Yes \n[CVE-2021-36936](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36936>) | Windows Print Spooler Remote Code Execution Vulnerability | No | Yes | 8.8 | No \n[CVE-2021-36947](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36947>) | Windows Print Spooler Remote Code Execution Vulnerability | No | No | 8.8 | No \n[CVE-2021-34483](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34483>) | Windows Print Spooler Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-36937](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36937>) | Windows Media MPEG-4 Video Decoder Remote Code Execution Vulnerability | No | No | 7.8 | No \n[CVE-2021-36942](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36942>) | Windows LSA Spoofing Vulnerability | No | Yes | 7.5 | Yes \n[CVE-2021-34533](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34533>) | Windows Graphics Component Font Parsing Remote Code Execution Vulnerability | No | No | 7.8 | No \n[CVE-2021-26425](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26425>) | Windows Event Tracing Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-36927](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36927>) | Windows Digital TV Tuner device registration application Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-34537](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34537>) | Windows Bluetooth Driver Elevation of Privilege Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-34480](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34480>) | Scripting Engine Memory Corruption Vulnerability | No | No | 6.8 | Yes \n[CVE-2021-34535](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34535>) | Remote Desktop Client Remote Code Execution Vulnerability | No | No | 8.8 | Yes", "cvss3": {}, "published": "2021-08-11T03:19:33", "type": "rapid7blog", "title": "Patch Tuesday - August 2021", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-26423", "CVE-2021-26424", "CVE-2021-26425", "CVE-2021-26426", "CVE-2021-26428", "CVE-2021-26429", "CVE-2021-26430", "CVE-2021-26431", "CVE-2021-26432", "CVE-2021-26433", "CVE-2021-30590", "CVE-2021-30591", "CVE-2021-30592", "CVE-2021-30593", "CVE-2021-30594", "CVE-2021-30596", "CVE-2021-30597", "CVE-2021-33762", "CVE-2021-34471", "CVE-2021-34478", "CVE-2021-34480", "CVE-2021-34483", "CVE-2021-34484", "CVE-2021-34485", "CVE-2021-34486", "CVE-2021-34487", "CVE-2021-34524", "CVE-2021-34530", "CVE-2021-34532", "CVE-2021-34533", "CVE-2021-34534", "CVE-2021-34535", "CVE-2021-34536", "CVE-2021-34537", "CVE-2021-36926", "CVE-2021-36927", "CVE-2021-36932", "CVE-2021-36933", "CVE-2021-36934", "CVE-2021-36936", "CVE-2021-36937", "CVE-2021-36938", "CVE-2021-36940", "CVE-2021-36941", "CVE-2021-36942", "CVE-2021-36943", "CVE-2021-36945", "CVE-2021-36946", "CVE-2021-36947", "CVE-2021-36948", "CVE-2021-36949", "CVE-2021-36950"], "modified": "2021-08-11T03:19:33", "id": "RAPID7BLOG:DE426F8A59CA497BB6C0B90C0F1849CD", "href": "https://blog.rapid7.com/2021/08/11/patch-tuesday-august-2021/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "avleonov": [{"lastseen": "2021-11-26T18:43:30", "description": "Hello everyone! Yet another news episode.\n\n## Microsoft&#x27;s August Patch Tuesday\n\nLet&#x27;s start with Microsoft&#x27;s August Patch Tuesday. I think the most interesting thing is that it contains a fix for the PetitPotam vulnerability. I talked about this vulnerability two weeks ago. At the time, Microsoft had no plans to release a patch because PetitPotam was a &quot;classic NTLM Relay Attack&quot;. But the patch was actually released as part of August Patch Tuesday.\n\nA [quote from Rapid7](<https://www.rapid7.com/blog/post/2021/08/03/petitpotam-novel-attack-chain-can-fully-compromise-windows-domains-running-ad-cs/>): _&quot;Tracked as CVE-2021-36942, the August 2021 Patch Tuesday security update blocks the affected API calls OpenEncryptedFileRawA and OpenEncryptedFileRawW through the LSARPC interface&quot;_. \n\nThere are no formal signs that this vulnerability is critical other than comments from the vendors. My Vulristics tool has flagged this &quot;Windows LSA Spoofing&quot; as a Medium level Vulnerability. But this fix seems to be the most important thing in this Patch Tuesday. So install this patch first.\n\nSpeaking of other vulnerabilities. There was nothing critical. No vulnerabilities with public exploits. Only one vulnerability that has been exploited in the wild, CVE-2021-36948 \u2013 Windows Update Medic Service Elevation of Privilege. But this is EoP and there are no public exploits yet, so I think you can patch it as planned without hurry.\n\nSeveral potentially dangerous RCEs:\n\n * Windows Print Spooler (CVE-2021-36936, CVE-2021-36947). They look similar to PrintNightmare, but there are no details yet.\n * Windows TCP/IP (CVE-2021-26424) and Remote Desktop Client (CVE-2021-34535). Such vulnerabilities rarely get public exploits.\n * NFS ONCRPC XDR Driver (CVE-2021-26432). Nothing is clear at all.\n\nIn general, it looks like a ptetty calm Patch Tuesday. If you&#x27;re interested, a link to the Vulristics report: In general, it looks like a ptetty calm Patch Tuesday. If you&#x27;re interested, a link to the Vulristics report: [ms_patch_tuesday_august2021](<https://avleonov.com/vulristics_reports/ms_patch_tuesday_august2021_report_avleonov_comments.html>)\n\n## Phishers started using reCAPTCHA\n\nFunny news that I really liked. [Phishers started using reCAPTCHA](<https://threatpost.com/cyberattackers-captchas-phishing-malware/168684/>) to bypass the automatic detection of phishing sites. The script only sees the safe page with a CAPTCHA and can&#x27;t solve it. But a real person just solves it without thinking, because people used to seeing and solving such CAPTCHAs, and see the complete phishing site. It&#x27;s very simple and ingenious! \n\n## Scan one IP and go to the prison\n\nAnd the last will be [a local news from Russia](<https://www.rbc.ru/technology_and_media/17/08/2021/611a95059a7947e9bf954a8f>). But the case is interesting. One guy worked in the tech support of some internet provider. And he decided to scan the network of this provider, detect misconfigured routers of the clients and inform them about the found vulnerabilities. His boss knew about it. Unfortunatelly, these clients included some government scientific research-to-production facility with a mail server available on the scanned IP. This facility is a \u201ccritical infrastructure\u201d object and the actions of a support technician are classified as an attack on critical infrastructure. He can spend up to 7 years in prison. Why he personally and not his employer? That guy worked remotelly from home and scanned from his personal IP address.\n\nA pretty crazy story, but it shows the cirumstances of &quot;penetration testing&quot; or &quot;bughunting&quot; without getting all necessery formal permissions. It also shows how, in theory, a person could be easily framed as an attacker if that person&#x27;s personal device is compromised. Also, I don&#x27;t think port scanning or banner grabbing is actually an attack, IMHO this is normal network activity. And I don&#x27;t think that checking the default passwords is always an attack, but it is a topic for discussion. In fact it doesn&#x27;t matter what I or we think, it&#x27;s only law enforcement practice that matters, and that practice can be pretty harsh. So keep that in mind and don&#x27;t scan the unknown hosts that don&#x27;t belong to you unless you want sudden problems.", "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": "2021-08-19T21:38:46", "type": "avleonov", "title": "Security News: Microsoft Patch Tuesday August 2021, Phishers Started Using reCAPTCHA, Scan 1 IP and Go to Jail", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26424", "CVE-2021-26432", "CVE-2021-34535", "CVE-2021-36936", "CVE-2021-36942", "CVE-2021-36947", "CVE-2021-36948"], "modified": "2021-08-19T21:38:46", "id": "AVLEONOV:3530747E605445686B7211B2B0853579", "href": "https://avleonov.com/2021/08/20/security-news-microsoft-patch-tuesday-august-2021-phishers-started-using-recaptcha-scan-1-ip-and-go-to-jail/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "threatpost": [{"lastseen": "2021-08-11T19:56:07", "description": "Microsoft has patched 51 security vulnerabilities in its scheduled August Patch Tuesday update, including seven critical bugs, two issues that were publicly disclosed but unpatched until now, and one that\u2019s listed as a zero-day that has been exploited in the wild.\n\nOf note, there are 17 elevation-of-privilege (EoP) vulnerabilities, 13 remote code-execution (RCE) issues, eight information-disclosure flaws and two denial-of-service (DoS) bugs.\n\nThe update also includes patches for three more Print Spooler bugs, familiar from the PrintNightmare saga.\n\n[](<https://threatpost.com/infosec-insider-subscription-page/>)\n\n\u201cFortunately, it was a lighter month than usual,\u201d said Eric Feldman, senior product marketing manager at Automox, in a [Patch Tuesday analysis](<https://blog.automox.com/automox-experts-weigh-in-august-patch-tuesday-2021>) from the vendor. \u201cThis represents a 56 percent reduction in overall vulnerabilities from July, and 33 percent fewer vulnerabilities on average for each month so far this year. We have also seen a similar reduction in critical vulnerabilities this month, with 30 percent less compared to the monthly average.\u201d\n\n## **Windows Critical Security Vulnerabilities**\n\nThe seven critical bugs [addressed in August](<https://msrc.microsoft.com/update-guide/>) are as follows:\n\n * CVE-2021-26424 \u2013 Windows TCP/IP RCE Vulnerability\n * CVE-2021-26432 \u2013 Windows Services for NFS ONCRPC XDR Driver RCE Vulnerability\n * CVE-2021-34480 \u2013 Scripting Engine Memory Corruption Vulnerability\n * CVE-2021-34530 \u2013 Windows Graphics Component RCE Vulnerability\n * CVE-2021-34534 \u2013 Windows MSHTML Platform RCE Vulnerability\n * CVE-2021-34535 \u2013 Remote Desktop Client RCE Vulnerability\n * CVE-2021-36936 \u2013 Windows Print Spooler RCE Vulnerability\n\nThe bug tracked as **CVE-2021-26424** exists in the TCP/IP protocol stack identified in Windows 7 and newer Microsoft operating systems, including servers.\n\n\u201cDespite its CVSS rating of 9.9, this may prove to be a trivial bug, but it\u2019s still fascinating,\u201d said Dustin Childs of Trend Micro\u2019s Zero Day Initiative (ZDI) in his [Tuesday analysis](<https://www.zerodayinitiative.com/blog/2021/8/10/the-august-2021-security-update-review>). \u201cAn attacker on a guest Hyper-V OS could execute code on the host Hyper-V server by sending a specially crafted IPv6 ping. This keeps it out of the wormable category. Still, a successful attack would allow the guest OS to completely take over the Hyper-V host. While not wormable, it\u2019s still cool to see new bugs in new scenarios being found in protocols that have been around for years.\u201d\n\nThe next bug, **CVE-2021-26432** in Windows Services, is more likely to be exploited given its low complexity status, according to Microsoft\u2019s advisory; it doesn\u2019t require privileges or user interaction to exploit, but Microsoft offered no further details.\n\n\u201cThis may fall into the \u2018wormable\u2019 category, at least between servers with NFS installed, especially since the open network computing remote procedure call (ONCRPC) consists of an External Data Representation (XDR) runtime built on the Winsock Kernel (WSK) interface,\u201d Childs said. \u201cThat certainly sounds like elevated code on a listening network service. Don\u2019t ignore this patch.\u201d\n\nAleks Haugom, product marketing manager at Automox, added, \u201cExploitation results in total loss of confidentiality across all devices managed by the same security authority. Furthermore, attackers can utilize it for denial-of-service attacks or to maliciously modify files. So far, no further details have been divulged by Microsoft or the security researcher (Liubenjin from Codesafe Team of Legendsec at Qi\u2019anxin Group) that discovered this vulnerability. Given the broad potential impact, its label \u2018Exploitation More Likely\u2019 and apparent secrecy, patching should be completed ASAP.\u201d\n\nMeanwhile, the memory-corruption bug (**CVE-2021-34480**) arises from how the scripting engine handles objects in memory, and it also allows RCE. Using a web-based attack or a malicious file, such as a malicious landing page or phishing email, attackers can use this vulnerability to take control of an affected system, install programs, view or change data, or create new user accounts with full user rights.\n\n\u201cCVE-2021-34480 should also be a priority,\u201d Kevin Breen, director of cyber-threat research at Immersive Labs, told Threatpost. \u201cIt is a low score in terms of CVSS, coming in at 6.8, but has been marked by Microsoft as \u2018Exploitation More Likely\u2019 because it is the type of attack commonly used to increase the success rate of spear phishing attacks to gain network access. Simple, but effective.\u201d\n\nThe Windows Graphic Component bug (**CVE-2021-34530**) allows attackers to remotely execute malicious code in the context of the current user, according to Microsoft \u2013 if they can social-engineer a target into opening a specially crafted file.\n\nAnother bug exists in the Windows MSHTML platform, also known as Trident (**CVE-2021-34534**). Trident is the rendering engine (mshtml.dll) used by Internet Explorer. The bug affects many Windows 10 versions (1607, 1809,1909, 2004, 20H2, 21H1) as well as Windows Server 2016 and 2019.\n\nBut while it potentially affects a large number of users, exploitation is not trivial.\n\n\u201cTo exploit, a threat actor would need to pull off a highly complex attack with user interaction \u2013 still entirely possible with the sophisticated attackers of today,\u201d said Peter Pflaster, technical product marketing manager at Automox.\n\nThe bug tracked as **CVE-2021-34535** impacts the Microsoft Remote Desktop Client, Microsoft\u2019s nearly ubiquitous utility for connecting to remote PCs.\n\n\u201cWith today\u2019s highly dispersed workforce, CVE-2021-34535, an RCE vulnerability in Remote Desktop Clients, should be a priority patch,\u201d said Breen. \u201cAttackers increasingly use RDP access as the tip of the spear to gain network access, often combining it with privilege escalation to move laterally. These can be powerful as, depending on the method, it may allow the attacker to authenticate in the network in the same way a user would, making detection difficult.\u201d\n\nIt\u2019s not as dangerous of a bug [as BlueKeep,](<https://threatpost.com/one-million-devices-open-to-wormable-microsoft-bluekeep-flaw/145113/>) according to Childs, which also affected RDP.\n\n\u201cBefore you start having flashbacks to BlueKeep, this bug affects the RDP client and not the RDP server,\u201d he said. \u201cHowever, the CVSS 9.9 bug is nothing to ignore. An attacker can take over a system if they can convince an affected RDP client to connect to an RDP server they control. On Hyper-V servers, a malicious program running in a guest VM could trigger guest-to-host RCE by exploiting this vulnerability in the Hyper-V Viewer. This is the more likely scenario and the reason you should test and deploy this patch quickly.\u201d\n\n## **Windows Print Spooler Bugs \u2013 Again**\n\nThe final critical bug is **CVE-2021-36936**, a Windows Print Spooler RCE bug that\u2019s listed as publicly known.\n\nPrint Spooler made headlines last month, when Microsoft patched what it thought was a minor elevation-of-privilege vulnerability in the service (CVE-2021-1675). But the listing was updated later in the week, after researchers from Tencent and NSFOCUS TIANJI Lab figured out it could be used for RCE \u2013 [requiring a new patch](<https://threatpost.com/microsoft-emergency-patch-printnightmare/167578/>).\n\nIt also disclosed a second bug, similar to PrintNightmare (CVE-2021-34527); and a third, [an EoP issue](<https://threatpost.com/microsoft-unpatched-bug-windows-print-spooler/167855/>) ([CVE-2021-34481](<https://support.microsoft.com/en-us/topic/kb5005652-manage-new-point-and-print-default-driver-installation-behavior-cve-2021-34481-873642bf-2634-49c5-a23b-6d8e9a302872>)).\n\n\u201cAnother month, another remote code-execution bug in the Print Spooler,\u201d said ZDI\u2019s Childs. \u201cThis bug is listed as publicly known, but it\u2019s not clear if this bug is a variant of PrintNightmare or a unique vulnerability all on its own. There are quite a few print-spooler bugs to keep track of. Either way, attackers can use this to execute code on affected systems. Microsoft does state low privileges are required, so that should put this in the non-wormable category, but you should still prioritize testing and deployment of this critical-rated bug.\u201d\n\nThe critical vulnerability is just one of three Print Spooler issues in the August Patch Tuesday release.\n\n\u201cThe specter of the PrintNightmare continues to haunt this patch Tuesday with three more print spooler vulnerabilities, CVE-2021-36947, CVE-2021-36936 and CVE-2021-34481,\u201d said Breen. \u201cAll three are listed as RCE over the network, requiring a low level of access, similar to PrintNightmare. Microsoft has marked these as \u2018Exploitation More Likely\u2019 which, if the previous speed of POC code being published is anything to go by, is certainly true.\u201d\n\n## **RCE Zero-Day in Windows Update Medic Service **\n\nThe actively exploited bug is tracked as **CVE-2021-36948** and is rated as important; it could pave the way for RCE via the Windows Update Medic Service in Windows 10 and Server 2019 and newer operating systems.\n\n\u201cUpdate Medic is a new service that allows users to repair Windows Update components from a damaged state such that the device can continue to receive updates,\u201d Automox\u2019 Jay Goodman explained. \u201cThe exploit is both low complexity and can be exploited without user interaction, making this an easy vulnerability to include in an adversary\u2019s toolbox.\u201d\n\nImmersive\u2019s Breen added, \u201cCVE-2021-36948 is a privilege-escalation vulnerability \u2013 the cornerstone of modern intrusions as they allow attackers the level of access to do things like hide their tracks and create user accounts. In the case of ransomware attacks, they have also been used to ensure maximum damage.\u201d\n\nThough the bug is being reported as being exploited in the wild by Microsoft, activity appears to remain limited or targeted: \u201cWe have seen no evidence of it at Kenna Security at this time,\u201d Jerry Gamblin, director of security research at Kenna Security (now part of Cisco) told Threatpost.\n\n## **Publicly Known Windows LSA Spoofing Bug**\n\nThe second publicly known bug (after the Print Spooler issue covered earlier) is tracked as **CVE-2021-36942**, and it\u2019s an important-rated Windows LSA (Local Security Authority) spoofing vulnerability.\n\n\u201cIt fixes a flaw that could be used to steal NTLM hashes from a domain controller or other vulnerable host,\u201d Immersive\u2019s Breen said. \u201cThese types of attacks are well known for lateral movement and privilege escalation, as has been demonstrated recently by a [new exploit called PetitPotam](<https://threatpost.com/microsoft-petitpotam-poc/168163/>). It is a post-intrusion exploit \u2013 further down the attack chain \u2013 but still a useful tool for attackers.\u201d\n\nChilds offered a bit of context around the bug.\n\n\u201cMicrosoft released this patch to further protect against NTLM relay attacks by issuing this update to block the LSARPC interface,\u201d he said. \u201cThis will impact some systems, notably Windows Server 2008 SP2, that use the EFS API OpenEncryptedFileRawA function. You should apply this to your Domain Controllers first and follow the additional guidance in [ADV210003](<https://msrc.microsoft.com/update-guide/vulnerability/ADV210003>) and [KB5005413](<https://support.microsoft.com/en-us/topic/kb5005413-mitigating-ntlm-relay-attacks-on-active-directory-certificate-services-ad-cs-3612b773-4043-4aa9-b23d-b87910cd3429>). This has been an ongoing issue since 2009, and, likely, this isn\u2019t the last we\u2019ll hear of this persistent issue.\u201d\n\nMicrosoft\u2019s next Patch Tuesday will fall on September 14.\n\nWorried about where the next attack is coming from? We\u2019ve got your back. **[REGISTER NOW](<https://threatpost.com/webinars/how-to-think-like-a-threat-actor/?utm_source=ART&utm_medium=ART&utm_campaign=August_Uptycs_Webinar>)** for our upcoming live webinar, How to **Think Like a Threat Actor**, in partnership with Uptycs on Aug. 17 at 11 AM EST and find out precisely where attackers are targeting you and how to get there first. Join host Becky Bracken and Uptycs researchers Amit Malik and Ashwin Vamshi on **[Aug. 17 at 11AM EST for this LIVE discussion](<https://threatpost.com/webinars/how-to-think-like-a-threat-actor/?utm_source=ART&utm_medium=ART&utm_campaign=August_Uptycs_Webinar>)**.\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": "2021-08-10T21:17:58", "type": "threatpost", "title": "Actively Exploited Windows Zero-Day Gets a Patch", "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"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-1675", "CVE-2021-26424", "CVE-2021-26432", "CVE-2021-34480", "CVE-2021-34481", "CVE-2021-34527", "CVE-2021-34530", "CVE-2021-34534", "CVE-2021-34535", "CVE-2021-36936", "CVE-2021-36942", "CVE-2021-36947", "CVE-2021-36948"], "modified": "2021-08-10T21:17:58", "id": "THREATPOST:8D4EA8B0593FD44763915E703BC9AB72", "href": "https://threatpost.com/exploited-windows-zero-day-patch/168539/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "thn": [{"lastseen": "2022-05-09T12:39:15", "description": "[](<https://thehackernews.com/images/-KFVbzvrTdtw/YRNbSwawxnI/AAAAAAAADfg/bEuoCVHmHHw4ycTXfnhAqcyuUoWDf2W7gCLcBGAsYHQ/s0/windows-update-download.jpg>)\n\nMicrosoft on Tuesday rolled out [security updates](<https://msrc.microsoft.com/update-guide/releaseNote/2021-Aug>) to address a total of 44 security issues affecting its software products and services, one of which it says is an actively exploited zero-day in the wild.\n\nThe update, which is the smallest release since December 2019, squashes seven Critical and 37 Important bugs in Windows, .NET Core &amp; Visual Studio, Azure, Microsoft Graphics Component, Microsoft Office, Microsoft Scripting Engine, Microsoft Windows Codecs Library, Remote Desktop Client, among others. This is in addition to [seven security flaws](<https://docs.microsoft.com/en-us/deployedge/microsoft-edge-relnotes-security>) it patched in the Microsoft Edge browser on August 5.\n\nChief among the patched issues is [CVE-2021-36948](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36948>) (CVSS score: 7.8), an elevation of privilege flaw affecting Windows Update Medic Service \u2014 a service that enables remediation and protection of Windows Update components \u2014 which could be abused to run malicious programs with escalated permissions.\n\nMicrosoft's Threat Intelligence Center has been credited with reporting the flaw, although the company refrained from sharing additional specifics or detail on how widespread those attacks were in light of active exploitation attempts.\n\nTwo of the security vulnerabilities are publicly known at the time of release -\n\n * [CVE-2021-36942](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942>) (CVSS score: 9.8) - Windows LSA Spoofing Vulnerability\n * [CVE-2021-36936](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36936>) (CVSS score: 8.8) - Windows Print Spooler Remote Code Execution Vulnerability\n\nWhile CVE-2021-36942 contains fixes to secure systems against NTLM relay attacks like [PetitPotam](<https://thehackernews.com/2021/07/new-petitpotam-ntlm-relay-attack-lets.html>) by blocking the LSARPC interface, CVE-2021-36936 resolves yet another remote code execution flaw in the Windows Print Spooler component.\n\n\"An unauthenticated attacker could call a method on the LSARPC interface and coerce the domain controller to authenticate against another server using NTLM,\" Microsoft said in its advisory for CVE-2021-36942; adding the \"security update blocks the affected API calls OpenEncryptedFileRawA and OpenEncryptedFileRawW through LSARPC interface.\"\n\nCVE-2021-36936 is also one among the three flaws in the Print Spooler service that Microsoft has fixed this month, with the two other vulnerabilities being [CVE-2021-36947](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36947>) and (CVSS score: 8.2) and [CVE-2021-34483](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34483>) (CVSS score: 7.8), the latter of which concerns an elevation of privilege vulnerability.\n\nIn addition, Microsoft has released [security updates](<https://support.microsoft.com/en-us/topic/kb5005652-manage-new-point-and-print-default-driver-installation-behavior-cve-2021-34481-873642bf-2634-49c5-a23b-6d8e9a302872>) to resolve a previously disclosed remote code execution in the Print Spooler service tracked as [CVE-2021-34481](<https://thehackernews.com/2021/07/microsoft-warns-of-new-unpatched.html>) (CVSS score: 8.8). This changes the default behavior of the \"[Point and Print](<https://docs.microsoft.com/en-us/windows-hardware/drivers/print/introduction-to-point-and-print>)\" feature, effectively preventing non-administrator users from installing or updating new and existing printer drivers using drivers from a remote computer or server without first elevating themselves to an administrator.\n\nAnother critical flaw remediated as part of Patch Tuesday updates is [CVE-2021-26424](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26424>) (CVSS score: 9.9), a remote code execution vulnerability in Windows TCP/IP, which Microsoft notes \"is remotely triggerable by a malicious Hyper-V guest sending an ipv6 ping to the Hyper-V host. An attacker could send a specially crafted TCP/IP packet to its host utilizing the TCP/IP Protocol Stack (tcpip.sys) to process packets.\"\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\nBesides Microsoft, patches have also been released by a number of other vendors to address several vulnerabilities, including -\n\n * [Adobe](<https://helpx.adobe.com/security.html/security/security-bulletin.ug.html>)\n * [Android](<https://source.android.com/security/bulletin/2021-08-01>)\n * [Cisco](<https://tools.cisco.com/security/center/publicationListing.x>)\n * [Citrix](<https://support.citrix.com/search/#/All%20Products?ct=Software%20Updates,Security%20Bulletins&searchText=&sortBy=Modified%20date&pageIndex=1>)\n * [Juniper Networks](<https://kb.juniper.net/InfoCenter/index?page=content&channel=SECURITY_ADVISORIES>)\n * Linux distributions [SUSE](<https://lists.suse.com/pipermail/sle-security-updates/2021-August/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=582222806>)\n * [Schneider Electric](<https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp>)\n * [Siemens](<https://new.siemens.com/global/en/products/services/cert.html#SecurityPublications>), and\n * [VMware](<https://www.vmware.com/security/advisories.html>)\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": 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": "2021-08-11T05:31:00", "type": "thn", "title": "Microsoft Releases Windows Updates to Patch Actively Exploited Vulnerability", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26424", "CVE-2021-34481", "CVE-2021-34483", "CVE-2021-36936", "CVE-2021-36942", "CVE-2021-36947", "CVE-2021-36948"], "modified": "2021-08-11T05:31:39", "id": "THN:F601EBBE359B3547B8E79F0217562FEF", "href": "https://thehackernews.com/2021/08/microsoft-releases-windows-updates-to.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:39:14", "description": "[](<https://thehackernews.com/images/-YB6xMmNkBp0/YRYuIvxMidI/AAAAAAAADhg/a2Ee5QkoQZw6JlnYhCIdg3Nk-HM2yu2wwCLcBGAsYHQ/s0/ransomware.jpg>)\n\nRansomware operators such as Magniber and Vice Society are actively exploiting vulnerabilities in Windows Print Spooler to compromise victims and spread laterally across a victim's network to deploy file-encrypting payloads on targeted systems.\n\n\"Multiple, distinct threat actors view this vulnerability as attractive to use during their attacks and may indicate that this vulnerability will continue to see more widespread adoption and incorporation by various adversaries moving forward,\" Cisco Talos [said](<https://blog.talosintelligence.com/2021/08/vice-society-ransomware-printnightmare.html>) in a report published Thursday, corroborating an [independent analysis](<https://www.crowdstrike.com/blog/magniber-ransomware-caught-using-printnightmare-vulnerability/>) from CrowdStrike, which observed instances of Magniber ransomware infections targeting entities in South Korea.\n\nWhile Magniber ransomware was first spotted in late 2017 singling out victims in South Korea through malvertising campaigns, Vice Society is a new entrant that emerged on the ransomware landscape in mid-2021, primarily targeting public school districts and other educational institutions. The attacks are said to have taken place since at least July 13.\n\nSince June, a series of \"PrintNightmare\" issues affecting the Windows print spooler service has come to light that could enable remote code execution when the component performs privileged file operations -\n\n * [**CVE-2021-1675**](<https://thehackernews.com/2021/06/researchers-leak-poc-exploit-for.html>) \\- Windows Print Spooler Remote Code Execution Vulnerability (Patched on June 8)\n * [**CVE-2021-34527**](<https://thehackernews.com/2021/07/microsofts-emergency-patch-fails-to.html>) \\- Windows Print Spooler Remote Code Execution Vulnerability (Patched on July 6-7)\n * [**CVE-2021-34481**](<https://thehackernews.com/2021/07/microsoft-warns-of-new-unpatched.html>) \\- Windows Print Spooler Remote Code Execution Vulnerability (Patched on August 10)\n * [**CVE-2021-36936**](<https://thehackernews.com/2021/08/microsoft-releases-windows-updates-to.html>) \\- Windows Print Spooler Remote Code Execution Vulnerability (Patched on August 10) \n * [**CVE-2021-36947**](<https://thehackernews.com/2021/08/microsoft-releases-windows-updates-to.html>) \\- Windows Print Spooler Remote Code Execution Vulnerability (Patched on August 10)\n * [**CVE-2021-34483**](<https://thehackernews.com/2021/08/microsoft-releases-windows-updates-to.html>) \\- Windows Print Spooler Elevation of Privilege Vulnerability (Patched on August 10)\n * [**CVE-2021-36958**](<https://thehackernews.com/2021/08/microsoft-security-bulletin-warns-of.html>) \\- Windows Print Spooler Remote Code Execution Vulnerability (Unpatched)\n\nCrowdStrike noted it was able to successfully prevent attempts made by the Magniber ransomware gang at exploiting the PrintNightmare vulnerability.\n\nVice Society, on the other hand, leveraged a variety of techniques to conduct post-compromise discovery and reconnaissance prior to bypassing native Windows protections for credential theft and privilege escalation.\n\n[](<https://thehackernews.com/images/-JlsTWIHVgX4/YRYltMOGBKI/AAAAAAAADhQ/pzUFIcW6y0ABjOe3PuUQE5cPSnEOvGP9ACLcBGAsYHQ/s0/ransomware.jpg>)\n\nSpecifically, the attacker is believed to have used a malicious library associated with the PrintNightmare flaw (CVE-2021-34527) to pivot to multiple systems across the environment and extract credentials from the victim.\n\n\"Adversaries are constantly refining their approach to the ransomware attack lifecycle as they strive to operate more effectively, efficiently, and evasively,\" the researchers said. \"The use of the vulnerability known as PrintNightmare shows that adversaries are paying close attention and will quickly incorporate new tools that they find useful for various purposes during their attacks.\"\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": 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": "2021-08-13T08:29:00", "type": "thn", "title": "Ransomware Gangs Exploiting Windows Print Spooler Vulnerabilities", "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-2021-34481", "CVE-2021-34483", "CVE-2021-34527", "CVE-2021-36936", "CVE-2021-36947", "CVE-2021-36958"], "modified": "2021-08-13T08:32:51", "id": "THN:6428957E9DED493169A2E63839F98667", "href": "https://thehackernews.com/2021/08/ransomware-gangs-exploiting-windows.html", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "krebs": [{"lastseen": "2021-08-21T10:08:03", "description": "**Microsoft** today released software updates to plug at least 44 security vulnerabilities in its **Windows** operating systems and related products. The software giant warned that attackers already are pouncing on one of the flaws, which ironically enough involves an easy-to-exploit bug in the software component responsible for patching **Windows 10** PCs and **Windows Server 2019** machines.\n\n\n\nMicrosoft said attackers have seized upon [CVE-2021-36948](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36948>), which is a weakness in the **Windows Update Medic** service. Update Medic is a new service that lets users repair Windows Update components from a damaged state so that the device can continue to receive updates.\n\nRedmond says while CVE-2021-36948 is being actively exploited, it is not aware of exploit code publicly available. The flaw is an &quot;elevation of privilege&quot; vulnerability that affects Windows 10 and **Windows Server 2019**, meaning it can be leveraged in combination with another vulnerability to let attackers run code of their choice as administrator on a vulnerable system.\n\n&quot;CVE-2021-36948 is a privilege escalation vulnerability - the cornerstone of modern intrusions as they allow attackers the level of access to do things like hide their tracks and create user accounts,&quot; said **Kevin Breen** of [Immersive Labs](<https://www.immersivelabs.com>). &quot;In the case of ransomware attacks, they have also been used to ensure maximum damage.&quot;\n\nAccording to Microsoft, critical flaws are those that can be exploited remotely by malware or malcontents to take complete control over a vulnerable Windows computer -- and with little to no help from users. Top of the heap again this month: Microsoft also took another stab at fixing a broad class of weaknesses in its printing software.\n\nLast month, the company rushed out an emergency update to patch &quot;[PrintNightmare](<https://krebsonsecurity.com/2021/07/microsoft-issues-emergency-patch-for-windows-flaw/>)&quot; -- a critical hole in its Windows Print Spooler software that was being attacked in the wild. Since then, a number of researchers have discovered holes in that patch, allowing them to circumvent its protections.\n\nToday&#x27;s Patch Tuesday fixes another critical Print Spooler flaw ([CVE-2021-36936](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36936>)), but it&#x27;s not clear if this bug is a variant of PrintNightmare or a unique vulnerability all on its own, said **Dustin Childs** at **Trend Micro&#x27;s Zero Day Initiative**.\n\n&quot;Microsoft does state low privileges are required, so that should put this in the non-wormable category, but you should still prioritize testing and deployment of this Critical-rated bug,&quot; Childs said.\n\nMicrosoft said the Print Spooler patch it is pushing today should address all publicly documented security problems with the service.\n\n&quot;Today we are addressing this risk by changing the default Point and Print driver installation and update behavior to require administrator privileges,&quot; Microsoft said in a blog post. &quot;This change may impact Windows print clients in scenarios where non-elevated users were previously able to add or update printers. However, we strongly believe that the security risk justifies the change. This change will take effect with the installation of the security updates released on August 10, 2021 for all versions of Windows, and is documented as [CVE-2021-34481](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34481>).&quot;\n\nAugust brings yet another critical patch ([CVE-2021-34535](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34535>)) for the **Windows Remote Desktop** service, and this time the flaw is in the Remote Desktop client instead of the server.\n\n[CVE-2021-26424](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26424>) -- a scary, critical bug in the **Windows TCP/IP** component -- earned a CVSS score of 9.9 (10 is the worst), and is present in **Windows 7** through **Windows 10**, and Windows Server 2008 through 2019 (Windows 7 is no longer being supported with security updates).\n\nMicrosoft said it was not aware of anyone exploiting this bug yet, although the company assigned it the label &quot;exploitation more likely,&quot; meaning it may not be difficult for attackers to figure out. CVE-2021-26424 could be exploited by sending a single malicious data packet to a vulnerable system.\n\nFor a complete rundown of all patches released today and indexed by severity, check out the [always-useful Patch Tuesday roundup](<https://isc.sans.edu/forums/diary/Microsoft+August+2021+Patch+Tuesday/27736/>) from the **SANS Internet Storm Center**. And it&#x27;s not a bad idea to hold off updating for a few days until Microsoft works out any kinks in the updates: [AskWoody.com](<https://www.askwoody.com/2021/defcon-2-august-updates-include-print-spooler-fixes/>) usually has the lowdown on any patches that are causing problems for Windows users.\n\nOn that note, before you update _please_ make sure you have backed up your system and/or important files. It\u2019s not uncommon for a Windows update package to hose one\u2019s system or prevent it from booting properly, and some updates 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\nIf you experience glitches or problems installing any of these patches this month, please consider leaving a comment about it below; there\u2019s a decent chance other readers have experienced the same and may chime in here with useful tips.", "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": "2021-08-10T21:12:58", "type": "krebs", "title": "Microsoft Patch Tuesday, August 2021 Edition", "bulletinFamily": "blog", "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-2021-26424", "CVE-2021-34481", "CVE-2021-34535", "CVE-2021-36936", "CVE-2021-36948"], "modified": "2021-08-10T21:12:58", "id": "KREBS:AE87E964E683A56CFE4E51E96F3530AD", "href": "https://krebsonsecurity.com/2021/08/microsoft-patch-tuesday-august-2021-edition/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "cve": [{"lastseen": "2023-05-23T15:35:37", "description": "Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability This CVE ID is unique from CVE-2021-26433, CVE-2021-36926, CVE-2021-36932.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-08-12T18:15:00", "type": "cve", "title": "CVE-2021-36933", "cwe": ["NVD-CWE-noinfo"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26433", "CVE-2021-36926", "CVE-2021-36932", "CVE-2021-36933"], "modified": "2021-08-20T19:04:00", "cpe": ["cpe:/o:microsoft:windows_10:2004", "cpe:/o:microsoft:windows_server_2016:20h2", "cpe:/o:microsoft:windows_server_2012:r2", "cpe:/o:microsoft:windows_10:1809", "cpe:/o:microsoft:windows_server_2019:-", "cpe:/o:microsoft:windows_10:21h1", "cpe:/o:microsoft:windows_rt_8.1:-", "cpe:/o:microsoft:windows_10:1607", "cpe:/o:microsoft:windows_10:20h2", 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"Adobe Connect version 11.2.2 (and earlier) is affected by a Reflected Cross-site Scripting vulnerability that could be abused by an attacker to inject malicious scripts into vulnerable form fields. 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"obtainUserPrivilege": false}, "cvelist": ["CVE-2021-33762", "CVE-2021-36943"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-36943", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36943", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:35:57", "description": "Azure CycleCloud Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-36943.", "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": "2021-08-10T07:00:00", "type": "mscve", "title": "Azure CycleCloud Elevation of Privilege Vulnerability", "bulletinFamily": "microsoft", "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-2021-33762", "CVE-2021-36943"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-33762", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33762", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:35:55", "description": "Windows Print Spooler Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-36947, CVE-2021-36958.", "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": "2021-08-10T07:00:00", "type": "mscve", "title": "Windows Print Spooler Remote Code Execution Vulnerability", "bulletinFamily": "microsoft", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-36936", "CVE-2021-36947", "CVE-2021-36958"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-36936", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36936", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:35:54", "description": "Windows Print Spooler Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-36936, CVE-2021-36958.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-08-10T07:00:00", "type": "mscve", "title": "Windows Print Spooler Remote Code Execution Vulnerability", "bulletinFamily": "microsoft", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-36936", "CVE-2021-36947", "CVE-2021-36958"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-36947", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36947", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:35:54", "description": "Windows 10 Update Assistant Elevation of Privilege Vulnerability", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-08-10T07:00:00", "type": "mscve", "title": "Windows 10 Update Assistant 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-2021-36945"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-36945", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36945", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:35:55", "description": "Microsoft Word Remote Code Execution Vulnerability", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-08-10T07:00:00", "type": "mscve", "title": "Microsoft Word Remote Code Execution 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-2021-36941"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-36941", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36941", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:35:54", "description": "Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability", "cvss3": {"exploitabilityScore": 1.2, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-08-10T07:00:00", "type": "mscve", "title": "Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability", "bulletinFamily": "microsoft", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 4.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.9, "vectorString": "AV:A/AC:M/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "ADJACENT_NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-36949"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-36949", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36949", "cvss": {"score": 4.9, "vector": "AV:A/AC:M/Au:S/C:P/I:P/A:P"}}, {"lastseen": "2023-05-27T14:46:35", "description": "Windows Recovery Environment Agent Elevation of Privilege Vulnerability", "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": "2021-08-10T07:00:00", "type": "mscve", "title": "Windows Recovery Environment Agent Elevation of Privilege Vulnerability", "bulletinFamily": "microsoft", "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-2021-26431"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-26431", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26431", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:35:55", "description": "Windows Cryptographic Primitives Library Information Disclosure Vulnerability", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-08-10T07:00:00", "type": "mscve", "title": "Windows Cryptographic Primitives Library Information Disclosure Vulnerability", "bulletinFamily": "microsoft", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-36938"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-36938", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36938", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}, {"lastseen": "2023-05-23T16:35:55", "description": "Microsoft SharePoint Server Spoofing Vulnerability", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "baseScore": 4.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2021-08-10T07:00:00", "type": "mscve", "title": "Microsoft SharePoint Server Spoofing Vulnerability", "bulletinFamily": "microsoft", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-36940"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-36940", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36940", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:P/A:N"}}, {"lastseen": "2023-05-23T16:35:57", "description": "Windows MSHTML Platform Remote Code Execution Vulnerability", "cvss3": {"exploitabilityScore": 1.6, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-08-10T07:00:00", "type": "mscve", "title": "Windows MSHTML Platform Remote Code Execution Vulnerability", "bulletinFamily": "microsoft", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 4.9, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "HIGH", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 5.1, "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-34534"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-34534", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34534", "cvss": {"score": 5.1, "vector": 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"vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T16:35:57", "description": "Scripting Engine Memory Corruption Vulnerability", "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": "2021-08-10T07:00:00", "type": "mscve", "title": "Scripting Engine Memory Corruption 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-2021-34480"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-34480", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34480", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-27T14:46:39", "description": ".NET Core and Visual Studio Denial of Service Vulnerability", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-08-10T07:00:00", "type": "mscve", "title": ".NET Core and Visual Studio Denial of Service Vulnerability", "bulletinFamily": "microsoft", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423"], "modified": "2021-08-19T07:00:00", "id": "MS:CVE-2021-26423", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26423", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-23T16:35:53", "description": "Windows Print Spooler Elevation of Privilege Vulnerability", "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": "2021-08-10T07:00:00", "type": "mscve", "title": "Windows Print Spooler Elevation of Privilege Vulnerability", "bulletinFamily": "microsoft", "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-2021-34483"], "modified": "2021-08-10T07:00:00", "id": "MS:CVE-2021-34483", "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34483", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}], "malwarebytes": [{"lastseen": "2021-08-11T14:38:54", "description": "The sheer number of patches (44 security vulnerabilities) should be enough to scare us, but unfortunately we have gotten used to those numbers. In fact, 44 is a low number compared to what we have seen on recent Patch Tuesdays. So what are the most notable vulnerabilities that were patched.\n\n * One actively exploited vulnerability\n * One vulnerability that has a CVSS score of 9.9 out of 10\n * And yet another attempt to fix PrintNightmare\n\nLet\u2019s go over these worst cases to get an idea of what we are up against.\n\n### CVEs\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).\n\n### Actively exploited\n\n[CVE-2021-36948](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36948>) is an [elevation of privilege (EoP)](<https://blog.malwarebytes.com/glossary/privilege-escalation/>) vulnerability in the Windows Update Medic Service. The Windows Update Medic Service is a background service that was introduced with Windows 10 and handles the updating process. Its only purpose is to repair the Windows Update service so that your PC can continue to receive updates unhindered. Besides on Windows 10 it also runs on Windows Server 2019. According to Microsoft CVE-2021-36948 is being actively exploited, but it is not aware of exploit code publicly available. [Reportedly](<https://blog.automox.com/automox-experts-weigh-in-august-patch-tuesday-2021>), the exploit is both low complexity and can be exploited without user interaction, making this an easy vulnerability to include in an adversaries toolbox. The bug is only locally exploitable, but local elevation of privilege is exactly what ransomware gangs will be looking to do after breaching a network, for example.\n\n### 9.9 out of 10\n\n[CVE-2021-34535](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34535>) is a [Remote Code Execution (RCE)](<https://blog.malwarebytes.com/glossary/remote-code-execution-rce-attack/>) vulnerability in Windows TCP/IP. This is remotely exploitable by a malicious Hyper-V guest sending an ipv6 ping to the Hyper-V host. An attacker could send a specially crafted TCPIP packet to its host. This vulnerability exists in the TCP/IP protocol stack identified in Windows 7 and newer Microsoft operating systems, including servers.\n\nThis vulnerability received a CVSS score of 9.9 out of 10. The CVSS standards are used to help security researchers, software users, and vulnerability tracking organizations measure and report on the severity of vulnerabilities. CVSS can also help security teams and developers prioritize threats and allocate resources effectively.\n\n### 9.8 out of 10\n\nAnother high scorer is [CVE-2021-26432](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26432>), an RCE in the Windows Services for NFS ONCRPC XDR Driver. Open Network Computing (ONC) Remote Procedure Call (RPC) is a remote procedure call system. ONC was originally developed by Sun Microsystems. The NFS protocol is independent of the type of operating system, network architecture, and transport protocols. The Windows service for the driver makes sure that Windows computers can use this protocol. This vulnerability got a high score because it is known to be easy to exploit and can be initiated remotely.\n\n### More RDP\n\n[CVE-2021-34535](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34535>) is an RCE in the Remote Desktop Client. Microsoft lists two exploit scenarios for this vulnerability:\n\n * In the case of a Remote Desktop connection, an attacker with control of a Remote Desktop Server could trigger a remote code execution (RCE) on the machine when a victim connects to the attacking server with the vulnerable Remote Desktop Client.\n * In the case of Hyper-V, a malicious program running in a guest VM could trigger guest-to-host RCE by exploiting this vulnerability in the Hyper-V Viewer when a victim running on the host connects to the attacking Hyper-V guest.\n\nSince this is a client-side vulnerability, an attacker would have to convince a user to authenticate to a malicious RDP server, where the server could then trigger the bug on the client side. Combined with other RDP weaknesses however, this vulnerability would be easy to chain into a full system take-over.\n\n### Never-ending nightmare of PrintNightmare\n\nThe Print Spooler service was subject to yet more patching. The researchers behind PrintNightmare predicted that it would be a fertile ground for further discoveries, and they seem to be right. I\u2019d be tempted to advise Microsoft to start from scratch instead of patching patches on a very old chunk of code.\n\n[CVE-2021-36936](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36936>) an RCE vulnerability in Windows Print Spooler. A vulnerability that was publicly disclosed, which may be related to several bugs in Print Spooler that were identified by researchers over the past few months (presumably PrintNightmare).\n\n[CVE-2021-34481](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34481>) and [CVE-2021-34527](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34527>) are RCE vulnerabilities that could allow attackers to run arbitrary code with SYSTEM privileges.\n\nMicrosoft said the Print Spooler patch it pushed this time should address all publicly documented security problems with the service. In an unusual step, it has made a breaking change: \u201cToday we are addressing this risk by changing the default Point and Print driver installation and update behavior to require administrator privileges.\u201d\n\nTo be continued, we suspect.\n\nThe post [PrintNightmare and RDP RCE among major issues tackled by Patch Tuesday](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/08/printnightmare-and-rdp-rce-among-major-issues-tackled-by-patch-tuesday/>) appeared first on [Malwarebytes Labs](<https://blog.malwarebytes.com>).", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-08-11T12:16:17", "type": "malwarebytes", "title": "PrintNightmare and RDP RCE among major issues tackled by Patch Tuesday", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.0, "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26432", "CVE-2021-34481", "CVE-2021-34527", "CVE-2021-34535", "CVE-2021-36936", "CVE-2021-36948"], "modified": "2021-08-11T12:16:17", "id": "MALWAREBYTES:9F3181D8BD5EF0E44A305AF69898B9E0", "href": "https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/08/printnightmare-and-rdp-rce-among-major-issues-tackled-by-patch-tuesday/", "cvss": {"score": 9.0, "vector": "AV:N/AC:L/Au:S/C:C/I:C/A:C"}}], "adobe": [{"lastseen": "2023-05-23T15:57:21", "description": "Adobe has released a security update for Adobe Connect. This update resolves multiple [important]() vulnerabilities. Successful exploitation could lead to arbitrary code execution. \n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "baseScore": 6.1, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 2.7}, "published": "2021-08-10T00:00:00", "type": "adobe", "title": "APSB21-66 Security update available for Adobe Connect", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-36061", "CVE-2021-36062", "CVE-2021-36063"], "modified": "2021-08-10T00:00:00", "id": "APSB21-66", "href": "https://helpx.adobe.com/security/products/connect/apsb21-66.html", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:P/A:N"}}], "attackerkb": [{"lastseen": "2023-06-05T23:15:46", "description": "Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26425, CVE-2021-34486.\n\n \n**Recent assessments:** \n \nAssessed Attacker Value: 0 \nAssessed Attacker Value: 0Assessed Attacker Value: 0\n", "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": "2021-08-12T00:00:00", "type": "attackerkb", "title": "CVE-2021-34487", "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-2021-26425", "CVE-2021-34486", "CVE-2021-34487"], "modified": "2021-08-24T00:00:00", "id": "AKB:20A31239-28EC-43E3-854A-6CA8B1F44AB8", "href": "https://attackerkb.com/topics/1vFJjaxNUo/cve-2021-34487", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-06-09T20:20:02", "description": "Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26425, CVE-2021-34487.\n\n \n**Recent assessments:** \n \nAssessed Attacker Value: 0 \nAssessed Attacker Value: 0Assessed Attacker Value: 0\n", "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": "2021-08-12T00:00:00", "type": "attackerkb", "title": "CVE-2021-34486", "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-2021-26425", "CVE-2021-34486", "CVE-2021-34487"], "modified": "2021-08-24T00:00:00", "id": "AKB:008B7980-D9F8-4D56-A194-F83ACBEEC5D4", "href": "https://attackerkb.com/topics/vYxZAvfLJA/cve-2021-34486", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-23T17:21:14", "description": "Windows Update Medic Service Elevation of Privilege Vulnerability\n\n \n**Recent assessments:** \n \nAssessed Attacker Value: 0 \nAssessed Attacker Value: 0Assessed Attacker Value: 0\n", "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": "2021-08-12T00:00:00", "type": "attackerkb", "title": "CVE-2021-36948", "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-2021-36948"], "modified": "2021-08-21T00:00:00", "id": "AKB:D92D1688-7724-40C4-AD86-DF44F4611D40", "href": "https://attackerkb.com/topics/aTP6m1u6PE/cve-2021-36948", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}], "oraclelinux": [{"lastseen": "2021-11-26T18:27:50", "description": "[5.0.206-1.0.1]\n- Add support for new Oracle release\n[5.0.206-1]\n- Update to .NET SDK 5.0.206 and Runtime 5.0.9\n- Resolves: RHBZ#1990965", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-08-13T00:00:00", "type": "oraclelinux", "title": ".NET 5.0 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-13T00:00:00", "id": "ELSA-2021-3148", "href": "http://linux.oracle.com/errata/ELSA-2021-3148.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2021-11-26T18:28:16", "description": "[3.1.118-1.0.1]\n- Update patch to support 8.3 (alexander.burmashev@oracle.com)\n- support OL release scheme (alexander.burmashev@oracle.com)\n[3.1.118-1]\n- Update to .NET SDK 3.1.118 and Runtime 3.1.18\n- Resolves: RHBZ#1990189", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-08-13T00:00:00", "type": "oraclelinux", "title": ".NET Core 3.1 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-13T00:00:00", "id": "ELSA-2021-3142", "href": "http://linux.oracle.com/errata/ELSA-2021-3142.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2021-11-26T18:27:49", "description": "[2.1.525-1]\n- Update to .NET SDK 2.1.525 and Runtime 2.1.29\n- Resolves: RHBZ#1988581\n[2.1.524-1]\n- Update to .NET SDK 2.1.524 and Runtime 2.1.28\n- Resolves: RHBZ#1953766", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.5, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-08-12T00:00:00", "type": "oraclelinux", "title": ".NET Core 2.1 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-34485"], "modified": "2021-08-12T00:00:00", "id": "ELSA-2021-3145", "href": "http://linux.oracle.com/errata/ELSA-2021-3145.html", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}], "rocky": [{"lastseen": "2022-03-02T15:15:06", "description": "An update for .NET Core 3.1 is now available for Rocky Linux 8.\nRocky Linux Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.\n.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\nNew versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 3.1.118 and .NET Runtime 3.1.18.\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-08-12T20:59:59", "type": "rocky", "title": ".NET Core 3.1 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-12T20:59:59", "id": "RLSA-2021:3142", "href": "https://errata.rockylinux.org/RLSA-2021:3142", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-03-02T15:15:06", "description": "An update for .NET 5.0 is now available for Rocky Linux 8.\nRocky Linux Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.\n.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\nNew versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 5.0.206 and .NET Runtime 5.0.9.\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-08-12T21:05:09", "type": "rocky", "title": ".NET 5.0 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-12T21:05:09", "id": "RLSA-2021:3148", "href": "https://errata.rockylinux.org/RLSA-2021:3148", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-03-02T15:15:06", "description": "An update for .NET Core 2.1 is now available for Rocky Linux 8.\nRocky Linux Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.\n.NET Core is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\nNew versions of .NET Core that address a security vulnerability are now available. The updated versions are .NET Core SDK 2.1.525 and .NET Core Runtime 2.1.29.\nDefault inclusions for applications built with .NET Core have been updated to reference the newest versions and their security fixes.\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.5, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-08-12T20:54:48", "type": "rocky", "title": ".NET Core 2.1 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-34485"], "modified": "2021-08-12T20:54:48", "id": "RLSA-2021:3145", "href": "https://errata.rockylinux.org/RLSA-2021:3145", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}], "almalinux": [{"lastseen": "2021-08-20T12:39:14", "description": ".NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\n\nNew versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 3.1.118 and .NET Runtime 3.1.18.\n\nSecurity Fix(es):\n\n* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)\n\n* dotnet: Dump file created world-readable (CVE-2021-34485)\n\n* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {}, "published": "2021-08-11T18:21:49", "type": "almalinux", "title": "Important: .NET Core 3.1 security and bugfix update", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-13T09:34:09", "id": "ALSA-2021:3142", "href": "https://errata.almalinux.org/8/ALSA-2021-3142.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2021-08-20T12:39:14", "description": ".NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\n\nNew versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 5.0.206 and .NET Runtime 5.0.9.\n\nSecurity Fix(es):\n\n* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)\n\n* dotnet: Dump file created world-readable (CVE-2021-34485)\n\n* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {}, "published": "2021-08-12T06:29:43", "type": "almalinux", "title": "Important: .NET 5.0 security and bugfix update", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-13T15:18:40", "id": "ALSA-2021:3148", "href": "https://errata.almalinux.org/8/ALSA-2021-3148.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "redhat": [{"lastseen": "2023-05-27T14:34:17", "description": ".NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\n\nNew versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 3.1.118 and .NET Runtime 3.1.18.\n\nSecurity Fix(es):\n\n* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)\n\n* dotnet: Dump file created world-readable (CVE-2021-34485)\n\n* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-08-11T18:24:19", "type": "redhat", "title": "(RHSA-2021:3143) Important: .NET Core 3.1 on RHEL 7 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-11T18:30:57", "id": "RHSA-2021:3143", "href": "https://access.redhat.com/errata/RHSA-2021:3143", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T14:34:17", "description": ".NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\n\nNew versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 3.1.118 and .NET Runtime 3.1.18.\n\nSecurity Fix(es):\n\n* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)\n\n* dotnet: Dump file created world-readable (CVE-2021-34485)\n\n* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-08-11T18:21:49", "type": "redhat", "title": "(RHSA-2021:3142) Important: .NET Core 3.1 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-11T18:29:34", "id": "RHSA-2021:3142", "href": "https://access.redhat.com/errata/RHSA-2021:3142", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T14:34:17", "description": ".NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\n\nNew versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 5.0.206 and .NET Runtime 5.0.9.\n\nSecurity Fix(es):\n\n* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)\n\n* dotnet: Dump file created world-readable (CVE-2021-34485)\n\n* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-08-12T06:29:43", "type": "redhat", "title": "(RHSA-2021:3148) Important: .NET 5.0 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-12T06:38:47", "id": "RHSA-2021:3148", "href": "https://access.redhat.com/errata/RHSA-2021:3148", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T14:34:17", "description": ".NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\n\nNew versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 5.0.206 and .NET Runtime 5.0.9.\n\nSecurity Fix(es):\n\n* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)\n\n* dotnet: Dump file created world-readable (CVE-2021-34485)\n\n* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-08-12T06:29:38", "type": "redhat", "title": "(RHSA-2021:3147) Important: .NET 5.0 on RHEL 7 security and bugfix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-26423", "CVE-2021-34485", "CVE-2021-34532"], "modified": "2021-08-12T06:38:40", "id": "RHSA-2021:3147", "href": "https://access.redhat.com/errata/RHSA-2021:3147", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "mskb": [{"lastseen": "2023-05-19T10:52:18", "description": "None\n**12/8/20** \nFor information about Windows update terminology, see the article about the [types of Windows updates](<https://docs.microsoft.com/en-us/troubleshoot/windows-client/deployment/standard-terminology-software-updates>) and the [monthly quality update types](<https://techcommunity.microsoft.com/t5/windows-it-pro-blog/windows-quality-updates-primer/ba-p/2569385>). To view other notes and messages, see the Windows 10, version 1507 update history home page.\n\n## Highlights\n\n * Updates the default installation privilege requirement so that you must be an administrator to install drivers when using [Point and Print](<https://docs.microsoft.com/en-us/windows-hardware/drivers/print/introduction-to-point-and-print>). \n\n## Improvements and fixes\n\nThis security update includes quality improvements. Key changes include:\n\n * Changes the default privilege requirement for installing drivers when using Point and Print. After installing this update, you must have administrative privileges to install drivers. If you use Point and Print, see [KB5005652](<https://support.microsoft.com/topic/873642bf-2634-49c5-a23b-6d8e9a302872>), [Point and Print Default Behavior Change](<https://aka.ms/PointPrintMSRCBlog>), and [CVE-2021-34481](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481>) for more information.\nIf you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.For more information about the resolved security vulnerabilities, please refer to the new [Security Update Guide](<https://msrc.microsoft.com/update-guide>) website.\n\n**Windows Update Improvements**Microsoft has released an update directly to the Windows Update client to improve reliability. Any device running Windows 10 configured to receive updates automatically from Windows Update, including Enterprise and Pro editions, will be offered the latest Windows 10 feature update based on device compatibility and Windows Update for Business deferral policy. This doesn't apply to long-term servicing editions.\n\n## Known issues in this update\n\n**Symptom**| **Workaround** \n---|--- \nAfter installing this update, the Encrypted File System (EFS) API [OpenEncryptedFileRaw(A/W)](<https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-openencryptedfilerawa>), often used in backup software, will not work when you back up to or from a Windows Server 2008 SP2 device. OpenEncryptedFileRaw will continue to work on all other versions of Windows (local and remote).| This behavior is expected because we addressed the issue in CVE-2021-36942.**Note** If you cannot use backup software on Windows 7 SP1 and Server 2008 R2 SP1 or later after installing this update, contact the manufacturer of your backup software for updates and support. \n \n## How to get this update\n\n**Before installing this update**Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security fixes. For general information about SSUs, see [Servicing stack updates](<https://docs.microsoft.com/en-us/windows/deployment/update/servicing-stack-updates>) and Servicing Stack Updates (SSU): Frequently Asked Questions. If you are using Windows Update, the latest SSU (KB5001399) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the [Microsoft Update Catalog](<http://www.catalog.update.microsoft.com/home.aspx>).**Install this update****Release Channel**| **Available**| **Next Step** \n---|---|--- \nWindows Update and Microsoft Update| Yes| None. This update will be downloaded and installed automatically from Windows Update. \nWindows Update for Business| Yes| None. This update will be downloaded and installed automatically from Windows Update in accordance with configured policies. \nMicrosoft Update Catalog| Yes| To get the standalone package for this update, go to the [Microsoft Update Catalog](<https://www.catalog.update.microsoft.com/Search.aspx?q=KB5005040>) website. \nWindows Server Update Services (WSUS)| Yes| This update will automatically sync with WSUS if you configure **Products and Classifications** as follows:**Product**: Windows 10**Classification**: Security Updates \n**File information**For a list of the files that are provided in this update, download the [file information for cumulative update 5005040](<https://download.microsoft.com/download/5/2/5/5258a9c1-9a52-4572-820f-3cf7336f0291/5005040.csv>). \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": "2021-08-10T07:00:00", "type": "mskb", "title": "August 10, 2021\u2014KB5005040 (OS Build 10240.19022)", "bulletinFamily": "microsoft", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-34481", "CVE-2021-36938", "CVE-2021-36942"], "modified": "2021-08-10T07:00:00", "id": "KB5005040", "href": "https://support.microsoft.com/en-us/help/5005040", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-19T10:52:19", "description": "None\n**7/13/21 \nIMPORTANT **This release includes the Flash Removal Package. Taking this update will remove Adobe Flash from the machine. For more information, see the [Update on Adobe Flash Player End of Support](<https://blogs.windows.com/msedgedev/2020/09/04/update-adobe-flash-end-support/>). \n\n**11/19/20** \nFor information about Windows update terminology, see the article about the [types of Windows updates](<https://docs.microsoft.com/en-us/troubleshoot/windows-client/deployment/standard-terminology-software-updates>) and the [monthly quality update types](<https://techcommunity.microsoft.com/t5/windows-it-pro-blog/windows-quality-updates-primer/ba-p/2569385>). To view other notes and messages, see the Windows 10, version 1607 update history home page. \n\n## Highlights\n\n * Updates an issue that renders some Yu Gothic and Yu Mincho characters incorrectly in vertical writing mode. \n * Updates an issue with zoom that occurs when you use Microsoft Edge IE Mode on devices that use multiple high-DPI monitors.\n * Updates the default installation privilege requirement so that you must be an administrator to install drivers when using [Point and Print](<https://docs.microsoft.com/en-us/windows-hardware/drivers/print/introduction-to-point-and-print>). \n\n## Improvements and fixes\n\nThis security update includes quality improvements. Key changes include:\n\n * Addresses an issue that renders some Yu Gothic and Yu Mincho characters incorrectly in vertical writing mode.\n * Addresses an issue with zoom that occurs when using Microsoft Edge IE Mode on devices that use multiple high-DPI monitors.\n * Addresses an issue that causes Windows to stop working when it uses AppLocker to validate a file that has multiple signatures. The error is 0x3B.\n * Changes the default privilege requirement for installing drivers when using Point and Print. After installing this update, you must have administrative privileges to install drivers. If you use Point and Print, see [KB5005652](<https://support.microsoft.com/topic/873642bf-2634-49c5-a23b-6d8e9a302872>), [Point and Print Default Behavior Change](<https://aka.ms/PointPrintMSRCBlog>), and [CVE-2021-34481](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481>) for more information.\n * Addresses an issue with Administrative Template settings you configure using a Group Policy Object (GPO). When you change the value of the policy settings to NOT CONFIGURED, the system continues to apply the previous settings instead of removing them. This issue occurs after installing the June 2020 or later updates and is most noticeable with roaming user profiles.\n * Addresses an issue in which an extra dereference against a sign in session causes **lsass.exe** to stop working after the user signs out.\nIf you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.For more information about the resolved security vulnerabilities, please refer to the new [Security Update Guide](<https://msrc.microsoft.com/update-guide>) website.\n\n**Windows Update Improvements**Microsoft has released an update directly to the Windows Update client to improve reliability. Any device running Windows 10 configured to receive updates automatically from Windows Update, including Enterprise and Pro editions, will be offered the latest Windows 10 feature update based on device compatibility and Windows Update for Business deferral policy. This doesn't apply to long-term servicing editions.\n\n## Known issues in this update\n\n### \n\n__\n\nClick or tap to view the known issues\n\n**Symptom**| **Workaround** \n---|--- \nAfter installing this update, the Encrypted File System (EFS) API [OpenEncryptedFileRaw(A/W)](<https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-openencryptedfilerawa>), often used in backup software, will not work when you back up to or from a Windows Server 2008 SP2 device. OpenEncryptedFileRaw will continue to work on all other versions of Windows (local and remote).| This behavior is expected because we addressed the issue in CVE-2021-36942.**Note** If you cannot use backup software on Windows 7 SP1 and Server 2008 R2 SP1 or later after installing this update, contact the manufacturer of your backup software for updates and support. \nAfter installing updates released April 22, 2021 or later, an issue occurs that affects versions of Windows Server that are in use as a Key Management Services (KMS) host. Client devices running Windows 10 Enterprise LTSC 2019 and Windows 10 Enterprise LTSC 2016 might fail to activate. This issue only occurs when using a new Customer Support Volume License Key (CSVLK). **Note** This does not affect activation of any other version or edition of Windows. Client devices that are attempting to activate and are affected by this issue might receive the error, \"Error: 0xC004F074. The Software Licensing Service reported that the computer could not be activated. No Key Management Service (KMS) could be contacted. Please see the Application Event Log for additional information.\"Event Log entries related to activation are another way to tell that you might be affected by this issue. Open **Event Viewer **on the client device that failed activation and go to **Windows Logs **&gt; **Application**. If you see only event ID 12288 without a corresponding event ID 12289, this means one of the following:\n\n * The KMS client could not reach the KMS host.\n * The KMS host did not respond.\n * The client did not receive the response.\nFor more information on these event IDs, see [Useful KMS client events - Event ID 12288 and Event ID 12289](<https://docs.microsoft.com/windows-server/get-started/activation-troubleshoot-kms-general#event-id-12288-and-event-id-12289>).| This issue is resolved in KB5010359. \n \n## How to get this update\n\n**Before installing this update**Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security fixes. For general information about SSUs, see [Servicing stack updates](<https://docs.microsoft.com/en-us/windows/deployment/update/servicing-stack-updates>) and Servicing Stack Updates (SSU): Frequently Asked Questions.If you are using Windows Update, the latest SSU (KB5001402) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the [Microsoft Update Catalog](<http://www.catalog.update.microsoft.com/home.aspx>). **Install this update****Release Channel**| **Available**| **Next Step** \n---|---|--- \nWindows Update and Microsoft Update| Yes| None. This update will be downloaded and installed automatically from Windows Update. \nWindows Update for Business| Yes| None. This update will be downloaded and installed automatically from Windows Update in accordance with configured policies. \nMicrosoft Update Catalog| Yes| To get the standalone package for this update, go to the [Microsoft Update Catalog](<https://www.catalog.update.microsoft.com/Search.aspx?q=KB5005043>) website. \nWindows Server Update Services (WSUS)| Yes| This update will automatically sync with WSUS if you configure **Products and Classifications** as follows:**Product**: Windows 10**Classification**: Security Updates \n**File information**For a list of the files that are provided in this update, download the [file information for cumulative update 5005043](<https://download.microsoft.com/download/c/8/4/c84ac030-6839-4436-9f81-8090e3f21e79/5005043.csv>).\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": "2021-08-10T07:00:00", "type": "mskb", "title": "August 10, 2021\u2014KB5005043 (OS Build 14393.4583)", "bulletinFamily": "microsoft", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-34481", "CVE-2021-36938", "CVE-2021-36942"], "modified": "2021-08-10T07:00:00", "id": "KB5005043", "href": "https://support.microsoft.com/en-us/help/5005043", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-19T10:52:20", "description": "None\n**Important: **Windows Server 2008 Service Pack 2 (SP2) has reached the end of mainstream support and are now in extended support. Starting in July 2020, there will no longer be optional, non-security releases (known as \"C\" releases) for this operating system. Operating systems in extended support have only cumulative monthly security updates (known as the \"B\" or Update Tuesday release). \n \nVerify that** **you have installed the required updates listed in the **How to get this update** section before installing this update. \n \nWSUS scan cab files will continue to be available for Windows Server 2008 SP2. If you have a subset of devices running this operating system without ESU, they might show as non-compliant in your patch management and compliance toolsets.\n\n## **Improvements and fixes**\n\nThis security update includes quality improvements. Key changes include:\n\n * Changes the default privilege requirement for installing drivers when using Point and Print. After installing this update, you must have administrative privileges to install drivers. If you use Point and Print, see [KB5005652](<https://support.microsoft.com/topic/873642bf-2634-49c5-a23b-6d8e9a302872>), [Point and Print Default Behavior Change](<https://aka.ms/PointPrintMSRCBlog>), and [CVE-2021-34481](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481>) for more information.\n * Addresses an issue in which Smart Card Authentication (PIV) fails on non-RFC compliant printers and scanners requiring smartcard authentication. For more information, see [KB5005391](<https://support.microsoft.com/help/5005390>).\n * This update also contains miscellaneous security improvements to internal OS functionality.\nFor more information about the resolved security vulnerabilities, please refer to the new [Security Update Guide](<https://msrc.microsoft.com/update-guide>) website.\n\n## **Known issues in this update**\n\n**Symptom**| **Workaround** \n---|--- \nAfter installing this update, the Encrypted File System (EFS) API **[OpenEncryptedFileRaw(A/W)](<https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-openencryptedfilerawa>)**, often used in backup software, will not work when you back up to or from a Windows Server 2008 SP2 device. **OpenEncryptedFileRaw** will continue to work on all other versions of Windows (local and remote).| This behavior is expected because we addressed the issue in [CVE-2021-36942](<https://portal.msrc.microsoft.com/security-guidance/advisory/CVE-2021-36942>).**Note** If you cannot use backup software on Windows 7 SP1 and Server 2008 R2 SP1 or later after installing this update, contact the manufacturer of your backup software for updates and support. \nAfter installing this update and restarting your device, you might receive the error, \u201cFailure to configure Windows updates. Reverting Changes. Do not turn off your computer\u201d, and the update might show as **Failed** in **Update History**.| This is expected in the following circumstances:\n\n * If you are installing this update on a device that is running an edition that is not supported for ESU. For a complete list of which editions are supported, see [KB4497181](<https://support.microsoft.com/help/4497181>).\n * If you do not have an ESU MAK add-on key installed and activated.\nIf you have purchased an ESU key and have encountered this issue, please verify you have applied all prerequisites and that your key is activated. For information on activation, please see this [blog](<https://aka.ms/Windows7ESU>) post. For information on the prerequisites, see the \"How to get this update\" section of this article. \nCertain operations, such as **rename**, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, \u201cSTATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)\u201d. This occurs when you perform the operation on a CSV owner node from a process that doesn\u2019t have administrator privilege.| Do one of the following:\n\n * Perform the operation from a process that has administrator privilege.\n * Perform the operation from a node that doesn\u2019t have CSV ownership.\nMicrosoft is working on a resolution and will provide an update in an upcoming release. \n \n## **How to get this update**\n\n**Before installing this update****IMPORTANT** Customers who have purchased the [Extended Security Update (ESU)](<https://www.microsoft.com/en-us/cloud-platform/extended-security-updates>) for on-premises versions of this OS must follow the procedures in [KB4522133](<https://support.microsoft.com/help/4522133>) to continue receiving security updates after extended support ends on January 14, 2020.For more information on ESU and which editions are supported, see [KB4497181](<https://support.microsoft.com/help/4497181>).**Prerequisite:**You must install the updates listed below and **restart your device** before installing the latest Rollup. Installing these updates improves the reliability of the update process and mitigates potential issues while installing the Rollup and applying Microsoft security fixes.\n\n 1. The April 9, 2019 servicing stack update (SSU) ([KB4493730](<https://support.microsoft.com/help/4493730>)). To get the standalone package for this SSU, search for it in the [Microsoft Update Catalog](<http://www.catalog.update.microsoft.com/home.aspx>). This update is required to install updates that are only SHA-2 signed.\n 2. The latest SHA-2 update ([KB4474419](<https://support.microsoft.com/help/4474419>)) released October 8, 2019. If you are using Windows Update, the latest SHA-2 update will be offered to you automatically. This update is required to install updates that are only SHA-2 signed. For more information on SHA-2 updates, see [2019 SHA-2 Code Signing Support requirement for Windows and WSUS](<https://support.microsoft.com/help/4472027>).\n 3. The Extended Security Updates (ESU) Licensing Preparation Package ([KB4538484](<https://support.microsoft.com/help/4538484>)) or the Update for the Extended Security Updates (ESU) Licensing Preparation Package ([KB4575904](<https://support.microsoft.com/help/4575904>)). The ESU licensing preparation package will be offered to you from WSUS. To get the standalone package for ESU licensing preparation package, search for it in the [Microsoft Update Catalog](<http://www.catalog.update.microsoft.com/home.aspx>).\nAfter installing the items above, we strongly recommend that you install the latest SSU ([KB4580971](<https://support.microsoft.com/help/4580971>)). If you are using Windows Update, the latest SSU will be offered to you automatically if you are an ESU customer. To get the standalone package for the latest SSU, search for it in the [Microsoft Update Catalog](<http://www.catalog.update.microsoft.com/home.aspx>). For general information about SSUs, see [Servicing stack updates](<https://docs.microsoft.com/en-us/windows/deployment/update/servicing-stack-updates>) and [Servicing Stack Updates (SSU): Frequently Asked Questions](<https://support.microsoft.com/help/4535697>).**REMINDER** If you are using Security-only updates, you will also need to install all previous Security-only updates and the latest cumulative update for Internet Explorer ([KB5005036](<https://support.microsoft.com/help/5005036>)).**Install this update****Release Channel**| **Available**| **Next Step** \n---|---|--- \nWindows Update and Microsoft Update| No| See the other options below. \nMicrosoft Update Catalog| Yes| To get the standalone package for this update, go to the [Microsoft Update Catalog](<https://www.catalog.update.microsoft.com/Search.aspx?q=KBNNNNNNN>) website. \nWindows Server Update Services (WSUS)| Yes| This update will automatically sync with WSUS if you configure **Products and Classifications** as follows:**Product**: Windows Server 2008 Service Pack 2**Classification**: Security Updates \n \n## **File information**\n\nFor a list of the files that are provided in this update, download the [file information for update 5005095](<https://download.microsoft.com/download/2/f/9/2f99a9fc-08b2-4463-9199-43e8f557ead0/5005095.csv>).\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": "2021-08-10T07:00:00", "type": "mskb", "title": "August 10, 2021\u2014KB5005095 (Security-only update)", "bulletinFamily": "microsoft", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-34481", "CVE-2021-36937", "CVE-2021-36942"], "modified": "2021-08-10T07:00:00", "id": "KB5005095", "href": "https://support.microsoft.com/en-us/help/5005095", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-05-19T10:52:19", "description": "None\n**Important: **Windows 7 and Windows Server 2008 R2 have reached the end of mainstream support and are now in extended support. Starting in July 2020, there will no longer be optional, non-security releases (known as \"C\" releases) for this operating system. Operating systems in extended support have only cumulative monthly security updates (known as the \"B\" or Update Tuesday release). \n \nVerify that** **you have installed the required updates listed in the **How to get this update** section before installing this update. \n \nFor information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, please see the following [article](<https://support.microsoft.com/help/824684>). To view other notes and messages, see the Windows 7 and Windows Server 2008 R2 update history [home page](<https://support.microsoft.com/help/4009469>).\n\n## **Improvements and fixes**\n\nThis security update includes quality improvements. Key changes include:\n\n * Changes the default privilege requirement for installing drivers when using Point and Print. After installing this update, you must have administrative privileges to install drivers. If you use Point and Print, see [KB5005652](<https://support.microsoft.com/topic/873642bf-2634-49c5-a23b-6d8e9a302872>), [Point and Print Default Behavior Change](<https://aka.ms/PointPrintMSRCBlog>), and [CVE-2021-34481](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481>) for more information.\n * Addresses an issue in which Smart Card Authentication (PIV) fails on non-RFC compliant printers and scanners requiring smartcard authentication. For more information, see [KB5005392](<https://support.microsoft.com/help/5005392>).\n * This update also contains miscellaneous security improvements to internal OS functionality.\nFor more information about the resolved security vulnerabilities, please refer to the new [Security Update Guide](<https://msrc.microsoft.com/update-guide>) website.\n\n## **Known issues in this update**\n\n**Symptom**| **Workaround** \n---|--- \nAfter installing this update, the Encrypted File System (EFS) API **[OpenEncryptedFileRaw(A/W)](<https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-openencryptedfilerawa>)**, often used in backup software, will not work when you back up to or from a Windows Server 2008 SP2 device. **OpenEncryptedFileRaw** will continue to work on all other versions of Windows (local and remote).| This behavior is expected because we addressed the issue in [CVE-2021-36942](<https://portal.msrc.microsoft.com/security-guidance/advisory/CVE-2021-36942>).**Note** If you cannot use backup software on Windows 7 SP1 and Server 2008 R2 SP1 or later after installing this update, contact the manufacturer of your backup software for updates