{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-39953","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2023-08-07T16:27:27.075Z","datePublished":"2023-08-10T13:55:19.957Z","dateUpdated":"2024-10-03T15:11:48.536Z"},"containers":{"cna":{"title":"Issuer not verified from obtained token in user_oidc","problemTypes":[{"descriptions":[{"cweId":"CWE-303","lang":"en","description":"CWE-303: Incorrect Implementation of Authentication Algorithm","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j"},{"name":"https://github.com/nextcloud/user_oidc/pull/642","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/user_oidc/pull/642"},{"name":"https://hackerone.com/reports/2021684","tags":["x_refsource_MISC"],"url":"https://hackerone.com/reports/2021684"}],"affected":[{"vendor":"nextcloud","product":"security-advisories","versions":[{"version":">= 1.0.0, < 1.3.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2023-08-10T13:55:19.957Z"},"descriptions":[{"lang":"en","value":"user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also have access to. user_oidc 1.3.3 contains a patch. No known workarounds are available."}],"source":{"advisory":"GHSA-xx3h-v363-q36j","discovery":"UNKNOWN"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T18:18:10.180Z"},"title":"CVE Program Container","references":[{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j","tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j"},{"name":"https://github.com/nextcloud/user_oidc/pull/642","tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/nextcloud/user_oidc/pull/642"},{"name":"https://hackerone.com/reports/2021684","tags":["x_refsource_MISC","x_transferred"],"url":"https://hackerone.com/reports/2021684"}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-10-03T15:08:38.977974Z","id":"CVE-2023-39953","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-10-03T15:11:48.536Z"}}]}}