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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openvpn:openvpn:3.6:*:*:*:*:*:*:*", "matchCriteriaId": "2003E88A-EC3B-48F8-9E89-78CF2BBFFA4E", "vulnerable": true}, {"criteria": "cpe:2.3:a:openvpn:openvpn:3.6.1:*:*:*:*:*:*:*", "matchCriteriaId": "EEE05E9D-DFA1-4EEC-9530-3C5EBFA68F7C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "OpenVPN 3 Core Library version 3.6 and 3.6.1 allows a man-in-the-middle attacker to bypass the certificate authentication by issuing an unrelated server certificate using the same hostname found in the verify-x509-name option in a client configuration."}, {"lang": "es", "value": "OpenVPN 3 Core Library versiones 3.6 y 3.6.1, permiten a un atacante tipo \"man-in-the-middle\" omitir la autenticaci\u00f3n de certificados al emitir un certificado de servidor no relacionado usando el mismo nombre de host encontrado en la opci\u00f3n verify-x509-name en la configuraci\u00f3n de un cliente"}], "id": "CVE-2021-3547", "lastModified": "2024-11-21T06:21:48.747", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-07-12T11:15:08.233", "references": [{"source": "security@openvpn.net", "tags": ["Patch", "Vendor Advisory"], "url": "https://community.openvpn.net/openvpn/wiki/CVE-2021-3547"}, {"source": "security@openvpn.net", "tags": ["Vendor Advisory"], "url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://community.openvpn.net/openvpn/wiki/CVE-2021-3547"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements"}], "sourceIdentifier": "security@openvpn.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-305"}], "source": "security@openvpn.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-295"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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