{
    "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"
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            }
        ]
    }
}