CVE-2020-27178

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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:apereo:central_authentication_service:*:*:*:*:*:*:*:*", "matchCriteriaId": "E1F495F2-0ED9-4D87-B39C-82922FDB7862", "versionEndExcluding": "5.3.16", "versionStartIncluding": "5.3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:apereo:central_authentication_service:*:*:*:*:*:*:*:*", "matchCriteriaId": "B943DFA5-360C-4D5B-A5D9-FDEC21DA7392", "versionEndExcluding": "6.1.7.2", "versionStartIncluding": "6.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:apereo:central_authentication_service:*:*:*:*:*:*:*:*", "matchCriteriaId": "7F0B3029-CE4F-40E3-B2AB-DECE9D1B171D", "versionEndExcluding": "6.2.4", "versionStartIncluding": "6.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:apereo:central_authentication_service:6.3.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "32DE9C99-81DC-4243-B05E-10B94EB7BFA4", "vulnerable": true}, {"criteria": "cpe:2.3:a:apereo:central_authentication_service:6.3.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "97205C21-4E68-4C1B-975C-D8713E3E2AD5", "vulnerable": true}, {"criteria": "cpe:2.3:a:apereo:central_authentication_service:6.3.0:rc3:*:*:*:*:*:*", "matchCriteriaId": "36366608-0562-4AED-9163-03F743F39460", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Apereo CAS 5.3.x before 5.3.16, 6.x before 6.1.7.2, 6.2.x before 6.2.4, and 6.3.x before 6.3.0-RC4 mishandles secret keys with Google Authenticator for multifactor authentication."}, {"lang": "es", "value": "Apereo CAS versiones 5.3.x anteriores a 5.3.16, versiones 6.x anteriores a 6.1.7.2, versiones 6.2.x anteriores a 6.2.4 y versiones 6.3.x anteriores a 6.3.0-RC4, maneja inapropiadamente las claves secretas con Google Authenticator para la autenticaci\u00f3n multifactor"}], "id": "CVE-2020-27178", "lastModified": "2026-06-17T03:08:54.417", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-10-16T16:15:11.573", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://apereo.github.io/2020/10/14/gauthvuln/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://apereo.github.io/2020/10/14/gauthvuln/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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