CVE-2020-5206

{"id": "CVE-2020-5206", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.4, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 10.0, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.8, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.8, "exploitabilityScore": 2.3}]}, "published": "2020-01-30T22:15:10.093", "references": [{"url": "https://github.com/opencast/opencast/commit/b157e1fb3b35991ca7bf59f0730329fbe7ce82e8", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/opencast/opencast/security/advisories/GHSA-vmm6-w4cf-7f3x", "tags": ["Mitigation", "Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-287"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-285"}]}], "descriptions": [{"lang": "en", "value": "In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1"}, {"lang": "es", "value": "En Opencast versiones anteriores a 7.6 y 8.1, usando una cookie remember-me con un nombre de usuario arbitrario puede causar que Opencast asuma una autenticaci\u00f3n apropiada para ese usuario, inclusive si la cookie remember-me era incorrecta, dado que el endpoint atacado tambi\u00e9n permite el acceso an\u00f3nimo. De esta forma, un atacante puede, por ejemplo, falsificar un token de remember-me, asumir la identidad del administrador del sistema global y solicitar contenido no p\u00fablico desde el servicio de b\u00fasqueda sin proporcionar una autenticaci\u00f3n adecuada. Este problema se corrigi\u00f3 en Opencast versi\u00f3n 7.6 y Opencast versi\u00f3n 8.1."}], "lastModified": "2020-02-05T18:30:49.467", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7056094F-6E63-4BFB-B8A3-125746BA882C", "versionEndExcluding": "7.6"}, {"criteria": "cpe:2.3:a:apereo:opencast:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A82AABB-ACF6-4017-99E8-4DA90CE416D7"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}