{ "id": "CVE-2020-15240", "sourceIdentifier": "security-advisories@github.com", "published": "2020-10-21T18:15:12.813", "lastModified": "2024-11-21T05:05:10.037", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "omniauth-auth0 (rubygems) versions >= 2.3.0 and < 2.4.1 improperly validate the JWT token signature when using the `jwt_validator.verify` method. Improper validation of the JWT token signature can allow an attacker to bypass authentication and authorization. You are affected by this vulnerability if all of the following conditions apply: 1. You are using `omniauth-auth0`. 2. You are using `JWTValidator.verify` method directly OR you are not authenticating using the SDK\u2019s default Authorization Code Flow. The issue is patched in version 2.4.1." }, { "lang": "es", "value": "omniauth-auth0 (rubygems) versiones posteriores a 2.3.0 incluy\u00e9ndola y versiones anteriores a 2.4.1, comprueban inapropiadamente la firma del token de JWT cuando utiliza el m\u00e9todo \"jwt_validator.verify\". La comprobaci\u00f3n inapropiada de la firma del token de JWT puede permitir a un atacante omitir la autenticaci\u00f3n y la autorizaci\u00f3n. Estas afectado por esta vulnerabilidad si se cumplen todas las condiciones siguientes: 1. Est\u00e1 utilizando \"omniauth-auth0\". 2. Est\u00e1 usando el m\u00e9todo \"JWTValidator.verify\" directamente O no est\u00e1 autentic\u00e1ndose usando el Authorization Code Flow predeterminado del SDK. El problema est\u00e1 parcheado en la versi\u00f3n 2.4.1" } ], "metrics": { "cvssMetricV31": [ { "source": "security-advisories@github.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "baseScore": 7.4, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 2.2, "impactScore": 5.2 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "baseScore": 9.1, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 3.9, "impactScore": 5.2 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "baseScore": 5.8, "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE" }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 4.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "security-advisories@github.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-287" }, { "lang": "en", "value": "CWE-347" } ] }, { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-347" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:auth0:omniauth-auth0:*:*:*:*:*:ruby:*:*", "versionStartIncluding": "2.3.0", "versionEndExcluding": "2.4.1", "matchCriteriaId": "8273AC75-02BD-48A7-A599-36E93B268A73" } ] } ] } ], "references": [ { "url": "https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a", "source": "security-advisories@github.com", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm", "source": "security-advisories@github.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://rubygems.org/gems/omniauth-auth0", "source": "security-advisories@github.com", "tags": [ "Product", "Vendor Advisory" ] }, { "url": "https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] }, { "url": "https://rubygems.org/gems/omniauth-auth0", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Product", "Vendor Advisory" ] } ] }