CVE-2017-12868

{"id": "CVE-2017-12868", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2017-09-01T13:29:00.240", "references": [{"url": "https://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html", "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html", "source": "cve@mitre.org"}, {"url": "https://simplesamlphp.org/security/201705-01", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://simplesamlphp.org/security/201705-01", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-384"}]}], "descriptions": [{"lang": "en", "value": "The secureCompare method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.13 and earlier, when used with PHP before 5.6, allows attackers to conduct session fixation attacks or possibly bypass authentication by leveraging missing character conversions before an XOR operation."}, {"lang": "es", "value": "El m\u00e9todo secureCompare en lib/SimpleSAML/Utils/Crypto.php en SimpleSAMLphp 1.14.13 y anteriores, al usarse con PHP en versiones anteriores a la 5.6, permite que los atacantes lleven a cabo ataques de fijaci\u00f3n de sesi\u00f3n o que, posiblemente, omitan la autenticaci\u00f3n aprovechando las conversiones de caracteres que faltan antes de una operaci\u00f3n XOR."}], "lastModified": "2025-04-20T01:37:25.860", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AA1268D7-6B0D-4BE5-9916-BE2860E66710", "versionEndIncluding": "1.14.13"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "44B09073-783B-4ADE-A5B8-DA6F93DBA46F", "versionEndIncluding": "5.5.38"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}