CVE-2021-3311

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:*", "matchCriteriaId": "C6BF448C-7017-428E-B9BF-40069ACD3990", "versionEndIncluding": "1.0.471", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in October through build 471. It reactivates an old session ID (which had been invalid after a logout) once a new login occurs. NOTE: this violates the intended Auth/Manager.php authentication behavior but, admittedly, is only relevant if an old session ID is known to an attacker."}, {"lang": "es", "value": "Se detect\u00f3 un problema en October hasta el build 471. Reactiva una ID de una sesi\u00f3n anterior (que hab\u00eda sido no v\u00e1lida despu\u00e9s de cerrar la sesi\u00f3n) una vez que se produce un nuevo inicio de sesi\u00f3n. NOTA: esto viola el comportamiento de autenticaci\u00f3n del archivo Auth/Manager.php previsto pero, cierto es que, solo es relevante si un ID de sesi\u00f3n antiguo es conocido por el atacante"}], "id": "CVE-2021-3311", "lastModified": "2026-06-17T04:04:55.230", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-02-05T14:15:19.153", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://anisiosantos.me/october-cms-token-reactivation"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://octobercms.com/forum/chan/announcements"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://anisiosantos.me/october-cms-token-reactivation"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://octobercms.com/forum/chan/announcements"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-613"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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