CVE-2016-2126

{"id": "CVE-2016-2126", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2017-05-11T14:29:58.077", "references": [{"url": "http://rhn.redhat.com/errata/RHSA-2017-0494.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2017-0495.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2017-0662.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2017-0744.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/94994", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "http://www.securitytracker.com/id/1037495", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2017:1265", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://www.samba.org/samba/security/CVE-2016-2126.html", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2017-0494.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2017-0495.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2017-0662.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2017-0744.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/94994", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securitytracker.com/id/1037495", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://access.redhat.com/errata/RHSA-2017:1265", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.samba.org/samba/security/CVE-2016-2126.html", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-264"}]}], "descriptions": [{"lang": "en", "value": "Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions."}, {"lang": "es", "value": "Samba versiones 4.0.0 hasta 4.5.2, es vulnerable a la elevaci\u00f3n de privilegios debido al manejo incorrecto de la suma de comprobaci\u00f3n PAC (Certificado de Atributo de Privilegio). Un atacante autenticado y remoto puede hacer que el proceso winbindd se bloquee usando un ticket de Kerberos leg\u00edtimo. Un servicio local con acceso a la tuber\u00eda con privilegios de winbindd puede hacer que winbindd almacene en cach\u00e9 los permisos de acceso elevados."}], "lastModified": "2025-04-20T01:37:25.860", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DFC5F77B-9D76-42B9-BB16-CA3A2DD00766", "versionEndExcluding": "4.3.13", "versionStartIncluding": "4.0.0"}, {"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9A963A86-CAF4-4882-B9DC-E9C7CDA2764C", "versionEndExcluding": "4.4.8", "versionStartIncluding": "4.4.0"}, {"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6044E13A-532E-403E-AA23-4A77771D2094", "versionEndExcluding": "4.5.3", "versionStartIncluding": "4.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}