This vulnerability allows local attackers to disclose sensitive information on affected installations of Symantec Endpoint Protection Manager. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the secars.dll module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the semwebsrv user.
{"id": "ZDI-20-222", "vendorId": null, "type": "zdi", "bulletinFamily": "info", "title": "Symantec Endpoint Protection Manager secars Out-Of-Bounds Read Information Disclosure Vulnerability", "description": "This vulnerability allows local attackers to disclose sensitive information on affected installations of Symantec Endpoint Protection Manager. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the secars.dll module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the semwebsrv user.", "published": "2020-02-11T00:00:00", "modified": "2020-02-11T00:00:00", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}, "cvss2": {"acInsufInfo": false, "cvssV2": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "LOW", "userInteractionRequired": false}, "cvss3": {"cvssV3": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4}, "href": "https://www.zerodayinitiative.com/advisories/ZDI-20-222/", "reporter": "KPC", "references": ["https://support.symantec.com/us/en/article.SYMSA1505.html"], "cvelist": ["CVE-2020-5828"], "immutableFields": [], "lastseen": "2022-02-10T00:00:00", "viewCount": 4, "enchantments": {"dependencies": {"references": [{"type": "cve", "idList": ["CVE-2020-5828"]}, {"type": "nessus", "idList": ["SYMANTEC_ENDPOINT_PROT_MGR_SYMSA1505.NASL"]}, {"type": "symantec", "idList": ["SMNTC-1505"]}], "rev": 4}, "score": {"value": 3.6, "vector": "NONE"}, "backreferences": {"references": [{"type": "cve", "idList": ["CVE-2020-5828"]}, {"type": "symantec", "idList": ["SMNTC-1505"]}]}, "exploitation": null, "epss": [{"cve": "CVE-2020-5828", "epss": "0.000450000", "percentile": "0.126130000", "modified": "2023-03-15"}], "vulnersScore": 3.6}, "_state": {"dependencies": 1647589307, "score": 1659743467, "epss": 1678948994}}
{"cve": [{"lastseen": "2023-02-09T15:26:10", "description": "Symantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "LOW", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 3.3, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2020-02-11T18:15:00", "type": "cve", "title": "CVE-2020-5828", "cwe": ["CWE-125"], "bulletinFamily": "NVD", "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-2020-5828"], "modified": "2020-02-13T21:34:00", "cpe": ["cpe:/a:symantec:endpoint_protection_manager:14.2"], "id": "CVE-2020-5828", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-5828", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}, "cpe23": ["cpe:2.3:a:symantec:endpoint_protection_manager:14.2:ru2:*:*:*:*:*:*", "cpe:2.3:a:symantec:endpoint_protection_manager:14.2:ru1-mp1:*:*:*:*:*:*", "cpe:2.3:a:symantec:endpoint_protection_manager:14.2:mp1:*:*:*:*:*:*", "cpe:2.3:a:symantec:endpoint_protection_manager:14.2:ru1:*:*:*:*:*:*", "cpe:2.3:a:symantec:endpoint_protection_manager:14.2:-:*:*:*:*:*:*"]}], "nessus": [{"lastseen": "2023-01-11T15:06:56", "description": "The version of Symantec Endpoint Protection Manager (SEPM) installed on the remote host is 14.x prior to 14.2 RU2 MP1. 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At this time, Symantec is not aware of any exploitations or adverse customer impact from these issues.\n\nSymantec has also created additional detections and protections, which are in place, and is continuing to monitor any attempts of this exploit against our products. At this time, there is no evidence of any attempts at this exploit in the wild.\n\n** **\n\n## **Affected Product(s)**\n\n \n\n**Symantec Endpoint Protection (SEP) **\n\n**& Symantec Endpoint Protection Small Business Edition (SEP SBE)** \n \n--- \n \n**CVE**\n\n| \n\n**Affected Version(s)**\n\n| \n\n**Remediation** \n \nCVE-2020-5820\n\nCVE-2020-5821\n\nCVE-2020-5822\n\nCVE-2020-5823\n\nCVE-2020-5824\n\nCVE-2020-5825\n\nCVE-2020-5826\n\n| \n\nPrior to 14.2 RU2 MP1 (14.2.5569.2100)\n\n| \n\nUpgrade to 14.2 RU2 MP1 (14.2.5569.2100) \n \n \n\n \n\n**Symantec Endpoint Protection Manager (SEPM)** \n \n--- \n \n**CVE**\n\n| \n\n**Affected Version(s)**\n\n| \n\n**Remediation** \n \nCVE-2020-5827\n\nCVE-2020-5828\n\nCVE-2020-5829\n\nCVE-2020-5830\n\nCVE-2020-5831\n\n| \n\nPrior to 14.2 RU2 MP1\n\n| \n\nUpgrade to 14.2 RU2 MP1 \n \n** **\n\n## **Issue Details**\n\n \n\n**CVE-2020-5820** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nHigh / 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111773 / NVD: [CVE-2020-5820](<https://nvd.nist.gov/vuln/detail/CVE-2020-5820>)\n\nPrivilege Escalation \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to a privilege escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user. \n \n** **\n\n \n\n**CVE-2020-5821 ** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nHigh / 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111771 / NVD: [CVE-2020-5821](<https://nvd.nist.gov/vuln/detail/CVE-2020-5821>)\n\nDLL Injection \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to a DLL injection vulnerability, which is a type of issue whereby an individual attempts to execute their own code in place of legitimate code as a means to perform an exploit. \n \n** **\n\n \n\n**CVE-2020-5822 ** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nHigh / 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111774 / NVD: [CVE-2020-5822](<https://nvd.nist.gov/vuln/detail/CVE-2020-5822>)\n\nPrivilege Escalation \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to a privilege escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user. \n \n** **\n\n \n\n**CVE-2020-5823** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nHigh / 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111775 / NVD: [CVE-2020-5823](<https://nvd.nist.gov/vuln/detail/CVE-2020-5823>)\n\nPrivilege Escalation \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to a privilege escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user. \n \n** **\n\n \n\n**CVE-2020-5824** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nMedium / 5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111776 / NVD: [CVE-2020-5824](<https://nvd.nist.gov/vuln/detail/CVE-2020-5824>)\n\nDenial of Service \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to a denial of service vulnerability, which is a type of issue whereby a threat actor attempts to tie up the resources of a resident application, thereby making certain functions unavailable. \n \n** **\n\n \n\n**CVE-2020-5825** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nMedium / 6.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111778 / NVD: [CVE-2020-5825](<https://nvd.nist.gov/vuln/detail/CVE-2020-5825>)\n\nArbitrary File Write \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to an arbitrary file write vulnerability, which is a type of issue whereby an attacker is able to overwrite existing files on the resident system without proper privileges. \n \n** **\n\n \n\n \n\n**CVE-2020-5826** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nMedium / 5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111777 / NVD: [CVE-2020-5826](<https://nvd.nist.gov/vuln/detail/CVE-2020-5826>)\n\nOut of Bounds \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program. \n \n** **\n\n \n\n**CVE-2020-5827** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nLow / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111781 / NVD: [CVE-2020-5827](<https://nvd.nist.gov/vuln/detail/CVE-2020-5827>)\n\nOut of Bounds \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program. \n \n** **\n\n \n\n**CVE-2020-5828** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nLow / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111782 / NVD: [CVE-2020-5828](<https://nvd.nist.gov/vuln/detail/CVE-2020-5828>)\n\nOut of Bounds \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program. \n \n** **\n\n \n\n**CVE-2020-5829** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nLow / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111785 / NVD: [CVE-2020-5829](<https://nvd.nist.gov/vuln/detail/CVE-2020-5829>)\n\nOut of Bounds \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program. \n \n** **\n\n \n\n**CVE-2020-5830** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nLow / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111786 / NVD: [CVE-2020-5830](<https://nvd.nist.gov/vuln/detail/CVE-2020-5830>)\n\nOut of Bounds \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program. \n \n** **\n\n \n\n**CVE-2020-5831** \n \n--- \n \n**Severity/CVSSv3:**\n\n| \n\nLow / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N \n \n**References:**\n\n**Impact:**\n\n| \n\nSecurity Focus: BID 111787 / NVD: [CVE-2020-5831](<https://nvd.nist.gov/vuln/detail/CVE-2020-5831>)\n\nOut of Bounds \n \n**Description:**\n\n| \n\nSymantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program. \n \n** **\n\n## **Mitigation & Additional Information**\n\n \n\nThe following product updates have been made available to customers to remediate these issues:\n\n * **SEP 14.2 RU2 MP1 (14.2.5569.2100)**\n * **SEPM 14.2 RU2 MP1**\n * **SEP SBE 14.2 RU2 MP1 (14.2.5569.2100)**\n\nIn addition, a refresh of 14.2 RU2 (14.2.5334.2000) was released on February 10, 2020 to address this issue. This is available upon request from Symantec Technical Support. \n\nSymantec recommends the following measures to reduce risk of attack:\n\n * Restrict access to administrative or management systems to authorized privileged users.\n * Restrict remote access to trusted/authorized systems only.\n * Run under the principle of least privilege, where possible, to limit the impact of potential exploit.\n * Keep all operating systems and applications current with vendor patches.\n * Follow a multi-layered approach to security. At a minimum, run both firewall and antimalware applications to provide multiple points of detection and protection for both inbound and outbound threats.\n * Deploy network and host-based intrusion detection systems to monitor network traffic for signs of anomalous or suspicious activity. This may aid in the detection of attacks or malicious activity related to the exploitation of latent vulnerabilities.\n\n \n\n## **Acknowledgements**\n\n * _CVE-2020-5820: Z0mb1E working with Trend Micro Zero Day Initiative_\n * _CVE-2020-5821: Z0mb1E_\n * _CVE-2020-5822: Z0mb1E working with Trend Micro Zero Day Initiative_\n * _CVE-2020-5823: Z0mb1E working with Trend Micro Zero Day Initiative_\n * _CVE-2020-5824: Z0mb1E working with Trend Micro Zero Day Initiative_\n * _CVE-2020-5825: Z0mb1E working with Trend Micro Zero Day Initiative_\n * _CVE-2020-5826: Z0mb1E working with Trend Micro Zero Day Initiative_\n * _CVE-2020-5827: Z0mb1E working with Trend Micro Zero Day Initiative_\n * _CVE-2020-5828: KPC of Trend Micro Zero Day Initiative_\n * _CVE-2020-5829: KPC of Trend Micro Zero Day Initiative_\n * _CVE-2020-5830: KPC of Trend Micro Zero Day Initiative_\n * _CVE-2020-5831: KPC of Trend Micro Zero Day Initiative_\n\n \n\n \n", "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": "2020-03-03T13:37:21", "type": "symantec", "title": "Symantec Endpoint Protection Multiple Issues", "bulletinFamily": "software", "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-2020-5820", "CVE-2020-5821", "CVE-2020-5822", "CVE-2020-5823", "CVE-2020-5824", "CVE-2020-5825", "CVE-2020-5826", "CVE-2020-5827", "CVE-2020-5828", "CVE-2020-5829", "CVE-2020-5830", "CVE-2020-5831"], "modified": "2020-04-17T19:50:31", "id": "SMNTC-1505", "href": "", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}]}