CVE-2020-15240

{"containers": {"cna": {"affected": [{"product": "omniauth-auth0", "vendor": "auth0", "versions": [{"status": "affected", "version": ">= 2.3.0, <2.4.1"}]}], "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."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "description": "CWE-287 Improper Authentication", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-347", "description": "CWE-347 Improper Verification of Cryptographic Signature", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-10-21T17:25:14.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a"}, {"tags": ["x_refsource_MISC"], "url": "https://rubygems.org/gems/omniauth-auth0"}], "source": {"advisory": "GHSA-58r4-h6v8-jcvm", "discovery": "UNKNOWN"}, "title": "Regression in JWT Signature Validation", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-15240", "STATE": "PUBLIC", "TITLE": "Regression in JWT Signature Validation"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "omniauth-auth0", "version": {"version_data": [{"version_value": ">= 2.3.0, <2.4.1"}]}}]}, "vendor_name": "auth0"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "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."}]}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-287 Improper Authentication"}]}, {"description": [{"lang": "eng", "value": "CWE-347 Improper Verification of Cryptographic Signature"}]}]}, "references": {"reference_data": [{"name": "https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm", "refsource": "CONFIRM", "url": "https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm"}, {"name": "https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a", "refsource": "MISC", "url": "https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a"}, {"name": "https://rubygems.org/gems/omniauth-auth0", "refsource": "MISC", "url": "https://rubygems.org/gems/omniauth-auth0"}]}, "source": {"advisory": "GHSA-58r4-h6v8-jcvm", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T13:08:22.896Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://rubygems.org/gems/omniauth-auth0"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2020-15240", "datePublished": "2020-10-21T17:25:14.000Z", "dateReserved": "2020-06-25T00:00:00.000Z", "dateUpdated": "2024-08-04T13:08:22.896Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "omniauth-auth0", "vendor": "auth0", "versions": [{"status": "affected", "version": ">= 2.3.0, <2.4.1"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:auth0:omniauth-auth0:*:*:*:*:*:ruby:*:*", "matchCriteriaId": "8273AC75-02BD-48A7-A599-36E93B268A73", "versionEndExcluding": "2.4.1", "versionStartIncluding": "2.3.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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\".&#xa0;La comprobaci\u00f3n inapropiada de la firma del token de JWT puede permitir a un atacante omitir la autenticaci\u00f3n y la autorizaci\u00f3n.&#xa0;Estas afectado por esta vulnerabilidad si se cumplen todas las condiciones siguientes: 1. Est\u00e1 utilizando \"omniauth-auth0\".&#xa0;2. Est\u00e1 usando el m\u00e9todo \"JWTValidator.verify\" directamente O no est\u00e1 autentic\u00e1ndose usando el Authorization Code Flow predeterminado del SDK.&#xa0;El problema est\u00e1 parcheado en la versi\u00f3n 2.4.1"}], "id": "CVE-2020-15240", "lastModified": "2026-06-17T02:56:20.360", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "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:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-10-21T18:15:12.813", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm"}, {"source": "security-advisories@github.com", "tags": ["Product", "Vendor Advisory"], "url": "https://rubygems.org/gems/omniauth-auth0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Vendor Advisory"], "url": "https://rubygems.org/gems/omniauth-auth0"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-347"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-347"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}