CVE-2015-8960

{"id": "CVE-2015-8960", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "[email protected]", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}]}, "published": "2016-09-21T02:59:00.133", "references": [{"url": "http://twitter.com/matthew_d_green/statuses/630908726950674433", "tags": ["Press/Media Coverage", "Technical Description", "Third Party Advisory"], "source": "[email protected]"}, {"url": "http://www.openwall.com/lists/oss-security/2016/09/20/4", "tags": ["Mailing List", "Technical Description", "Third Party Advisory"], "source": "[email protected]"}, {"url": "http://www.securityfocus.com/bid/93071", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "source": "[email protected]"}, {"url": "https://kcitls.org", "tags": ["Exploit", "Technical Description"], "source": "[email protected]"}, {"url": "https://security.netapp.com/advisory/ntap-20180626-0002/", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf", "tags": ["Exploit", "Mitigation", "Technical Description"], "source": "[email protected]"}, {"url": "http://twitter.com/matthew_d_green/statuses/630908726950674433", "tags": ["Press/Media Coverage", "Technical Description", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2016/09/20/4", "tags": ["Mailing List", "Technical Description", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/93071", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://kcitls.org", "tags": ["Exploit", "Technical Description"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.netapp.com/advisory/ntap-20180626-0002/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf", "tags": ["Exploit", "Mitigation", "Technical Description"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "The TLS protocol 1.2 and earlier supports the rsa_fixed_dh, dss_fixed_dh, rsa_fixed_ecdh, and ecdsa_fixed_ecdh values for ClientCertificateType but does not directly document the ability to compute the master secret in certain situations with a client secret key and server public key but not a server secret key, which makes it easier for man-in-the-middle attackers to spoof TLS servers by leveraging knowledge of the secret key for an arbitrary installed client X.509 certificate, aka the \"Key Compromise Impersonation (KCI)\" issue."}, {"lang": "es", "value": "El protocolo TLS 1.2 y versiones anteriores soporta los valores rsa_fixed_dh, dss_fixed_dh, rsa_fixed_ecdh y ecdsa_fixed_ecdh para ClientCertificateType pero no documenta directamente la habilidad para computar el secreto maestro en determinadas situaciones con una clave de cliente secreta y una clave p\u00fablica de servidor pero no una clave secreta de servidor, lo que facilita a atacantes man-in-the-middle suplantar servidores TLS aprovechando el conocimiento de la clave secreta para un certificado cliente X.509 arbitrariamente instalado, tambi\u00e9n conocido como problema \"Key Compromise Impersonation (KCI)\"."}], "lastModified": "2025-04-12T10:46:40.837", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:ietf:transport_layer_security:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B20CCEB2-5534-4263-ACEA-C0A928CB6414", "versionEndIncluding": "1.2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": 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