CVE-2021-31847

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{"affected": [{"affectedData": [{"platforms": ["Windows"], "product": "McAfee Agent for Windows", "vendor": "McAfee,LLC", "versions": [{"lessThan": "5.7.4", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "trellixpsirt@trellix.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mcafee:agent:*:*:*:*:*:windows:*:*", "matchCriteriaId": "D3643699-06A5-4C9F-8FB4-D9A9F3C93977", "versionEndExcluding": "5.7.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper access control vulnerability in the repair process for McAfee Agent for Windows prior to 5.7.4 could allow a local attacker to perform a DLL preloading attack using unsigned DLLs. This would result in elevation of privileges and the ability to execute arbitrary code as the system user, through not correctly protecting a temporary directory used in the repair process and not checking the DLL signature."}, {"lang": "es", "value": "Una vulnerabilidad de control de acceso inapropiado en el proceso de reparaci\u00f3n de McAfee Agent para Windows versiones anteriores a 5.7.4, podr\u00eda permitir a un atacante local llevar a cabo un ataque de precarga de DLL usando DLL sin firmar. Esto dar\u00eda lugar a una elevaci\u00f3n de privilegios y a la posibilidad de ejecutar c\u00f3digo arbitrario como usuario del sistema, al no proteger correctamente un directorio temporal usado en el proceso de reparaci\u00f3n y no comprobar la firma de la DLL"}], "id": "CVE-2021-31847", "lastModified": "2026-06-17T03:52:20.417", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 6.9, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.5, "impactScore": 6.0, "source": "trellixpsirt@trellix.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-09-22T14:15:07.563", "references": [{"source": "trellixpsirt@trellix.com", "tags": ["Broken Link"], "url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10369"}, {"source": "trellixpsirt@trellix.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1104/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10369"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1104/"}], "sourceIdentifier": "trellixpsirt@trellix.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}, {"lang": "en", "value": "CWE-347"}], "source": "trellixpsirt@trellix.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-427"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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