{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-48228", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2023-11-13T13:25:18.481Z", "datePublished": "2023-11-21T20:48:32.552Z", "dateUpdated": "2024-08-02T21:23:39.088Z"}, "containers": {"cna": {"title": "OAuth2: PKCE can be fully circumvented", "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "lang": "en", "description": "CWE-287: Improper Authentication", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"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"}}], "references": [{"name": "https://github.com/goauthentik/authentik/security/advisories/GHSA-fm34-v8xq-f2c3", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-fm34-v8xq-f2c3"}, {"name": "https://github.com/goauthentik/authentik/pull/7666", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/pull/7666"}, {"name": "https://github.com/goauthentik/authentik/pull/7668", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/pull/7668"}, {"name": "https://github.com/goauthentik/authentik/pull/7669", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/pull/7669"}, {"name": "https://github.com/goauthentik/authentik/commit/3af77ab3821fe9c7df8055ba5eade3d1ecea03a6", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/commit/3af77ab3821fe9c7df8055ba5eade3d1ecea03a6"}, {"name": "https://github.com/goauthentik/authentik/commit/6b9afed21f7c39f171a4a445654cfe415bba37d5", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/commit/6b9afed21f7c39f171a4a445654cfe415bba37d5"}, {"name": "https://github.com/goauthentik/authentik/commit/b88e39411c12e3f9e04125a7887f12354f760a14", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/commit/b88e39411c12e3f9e04125a7887f12354f760a14"}, {"name": "https://github.com/goauthentik/authentik/blob/dd4e9030b4e667d3720be2feda24c08972602274/authentik/providers/oauth2/views/token.py#L225", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/blob/dd4e9030b4e667d3720be2feda24c08972602274/authentik/providers/oauth2/views/token.py#L225"}, {"name": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.4", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.4"}, {"name": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.5"}], "affected": [{"vendor": "goauthentik", "product": "authentik", "versions": [{"version": "< 2023.10.4", "status": "affected"}, {"version": "< 2023.8.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2023-11-21T20:48:32.552Z"}, "descriptions": [{"lang": "en", "value": "authentik is an open-source identity provider. When initialising a oauth2 flow with a `code_challenge` and `code_method` (thus requesting PKCE), the single sign-on provider (authentik) must check if there is a matching and existing `code_verifier` during the token step. Prior to versions 2023.10.4 and 2023.8.5, authentik checks if the contents of `code_verifier` is matching only when it is provided. When it is left out completely, authentik simply accepts the token request with out it; even when the flow was started with a `code_challenge`. authentik 2023.8.5 and 2023.10.4 fix this issue."}], "source": {"advisory": "GHSA-fm34-v8xq-f2c3", "discovery": "UNKNOWN"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T21:23:39.088Z"}, "title": "CVE Program Container", "references": [{"name": "https://github.com/goauthentik/authentik/security/advisories/GHSA-fm34-v8xq-f2c3", "tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-fm34-v8xq-f2c3"}, {"name": "https://github.com/goauthentik/authentik/pull/7666", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/goauthentik/authentik/pull/7666"}, {"name": "https://github.com/goauthentik/authentik/pull/7668", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/goauthentik/authentik/pull/7668"}, {"name": "https://github.com/goauthentik/authentik/pull/7669", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/goauthentik/authentik/pull/7669"}, {"name": "https://github.com/goauthentik/authentik/commit/3af77ab3821fe9c7df8055ba5eade3d1ecea03a6", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/goauthentik/authentik/commit/3af77ab3821fe9c7df8055ba5eade3d1ecea03a6"}, {"name": "https://github.com/goauthentik/authentik/commit/6b9afed21f7c39f171a4a445654cfe415bba37d5", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/goauthentik/authentik/commit/6b9afed21f7c39f171a4a445654cfe415bba37d5"}, {"name": "https://github.com/goauthentik/authentik/commit/b88e39411c12e3f9e04125a7887f12354f760a14", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/goauthentik/authentik/commit/b88e39411c12e3f9e04125a7887f12354f760a14"}, {"name": "https://github.com/goauthentik/authentik/blob/dd4e9030b4e667d3720be2feda24c08972602274/authentik/providers/oauth2/views/token.py#L225", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/goauthentik/authentik/blob/dd4e9030b4e667d3720be2feda24c08972602274/authentik/providers/oauth2/views/token.py#L225"}, {"name": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.4", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.4"}, {"name": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.5", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.5"}]}]}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*", "matchCriteriaId": "EDAD4E86-B0E7-4863-B8B4-D3B85DF1F9B3", "versionEndExcluding": "2023.8.5", "vulnerable": true}, {"criteria": "cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*", "matchCriteriaId": "94DFCEE9-DE60-4890-8F11-D2EFDB0565D5", "versionEndExcluding": "2023.10.4", "versionStartIncluding": "2023.10.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "authentik is an open-source identity provider. When initialising a oauth2 flow with a `code_challenge` and `code_method` (thus requesting PKCE), the single sign-on provider (authentik) must check if there is a matching and existing `code_verifier` during the token step. Prior to versions 2023.10.4 and 2023.8.5, authentik checks if the contents of `code_verifier` is matching only when it is provided. When it is left out completely, authentik simply accepts the token request with out it; even when the flow was started with a `code_challenge`. authentik 2023.8.5 and 2023.10.4 fix this issue."}, {"lang": "es", "value": "authentik es un proveedor de identidad de c\u00f3digo abierto. Al inicializar un flujo oauth2 con un `code_challenge` y un `code_method` (solicitando as\u00ed PKCE), el proveedor de inicio de sesi\u00f3n \u00fanico (authentik) debe verificar si hay un `code_verifier` coincidente y existente durante el paso del token. Antes de las versiones 2023.10.4 y 2023.8.5, authentik verifica si el contenido de `code_verifier` coincide solo cuando se proporciona. Cuando se omite por completo, authentik simplemente acepta la solicitud del token sin \u00e9l; incluso cuando el flujo se inici\u00f3 con un \"code_challenge\". authentik 2023.8.5 y 2023.10.4 solucionan este problema."}], "id": "CVE-2023-48228", "lastModified": "2023-11-29T02:35:26.887", "metrics": {"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"}, {"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": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2023-11-21T21:15:08.477", "references": [{"source": "security-advisories@github.com", "tags": ["Product"], "url": "https://github.com/goauthentik/authentik/blob/dd4e9030b4e667d3720be2feda24c08972602274/authentik/providers/oauth2/views/token.py#L225"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/goauthentik/authentik/commit/3af77ab3821fe9c7df8055ba5eade3d1ecea03a6"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/goauthentik/authentik/commit/6b9afed21f7c39f171a4a445654cfe415bba37d5"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/goauthentik/authentik/commit/b88e39411c12e3f9e04125a7887f12354f760a14"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/goauthentik/authentik/pull/7666"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/goauthentik/authentik/pull/7668"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/goauthentik/authentik/pull/7669"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.4"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.5"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-fm34-v8xq-f2c3"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}