{"id":"CVE-2024-23656","summary":"Dex 2.37.0 is discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers","details":"Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex 2.37.0 serves HTTPS with insecure TLS 1.0 and TLS 1.1. `cmd/dex/serve.go` line 425 seemingly sets TLS 1.2 as minimum version, but the whole `tlsConfig` is ignored after `TLS cert reloader` was introduced in v2.37.0. Configured cipher suites are not respected either. This issue is fixed in Dex 2.38.0.","aliases":["GHSA-gr79-9v6v-gc9r","GO-2024-2476"],"modified":"2026-04-02T10:00:30.560361Z","published":"2024-01-25T19:45:41.237Z","related":["CGA-c697-ggf8-xx55"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23656.json","cwe_ids":["CWE-326","CWE-757"],"cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/dexidp/dex/blob/70d7a2c7c1bb2646b1a540e49616cbc39622fb83/cmd/dex/serve.go#L425"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23656.json"},{"type":"ADVISORY","url":"https://github.com/dexidp/dex/security/advisories/GHSA-gr79-9v6v-gc9r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-23656"},{"type":"REPORT","url":"https://github.com/dexidp/dex/issues/2848"},{"type":"FIX","url":"https://github.com/dexidp/dex/commit/5bbdb4420254ba73b9c4df4775fe7bdacf233b17"},{"type":"FIX","url":"https://github.com/dexidp/dex/pull/2964"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/dexidp/dex","events":[{"introduced":"0"},{"fixed":"5bbdb4420254ba73b9c4df4775fe7bdacf233b17"}]}],"versions":["api/v2.0.0","api/v2.1.0","v2.0.0","v2.0.0-alpha.1","v2.0.0-alpha.2","v2.0.0-alpha.3","v2.0.0-alpha.4","v2.0.0-alpha.5","v2.0.0-beta.1","v2.0.0-beta.2","v2.0.0-beta.3","v2.0.1","v2.0.2","v2.1.0","v2.10.0","v2.11.0","v2.12.0","v2.13.0","v2.14.0","v2.15.0","v2.16.0","v2.17.0","v2.18.0","v2.19.0","v2.2.0","v2.2.1","v2.2.2","v2.2.3","v2.2.4","v2.2.5","v2.20.0","v2.21.0","v2.22.0","v2.23.0","v2.24.0","v2.25.0","v2.26.0","v2.27.0","v2.28.0","v2.28.1","v2.29.0","v2.3.0","v2.3.1","v2.30.0","v2.30.1","v2.30.2","v2.30.3","v2.31.0","v2.31.1","v2.31.2","v2.32.0","v2.32.1","v2.33.0","v2.33.1","v2.34.0","v2.35.0","v2.35.1","v2.35.2","v2.35.3","v2.36.0","v2.37.0","v2.4.0","v2.4.1","v2.5.0","v2.6.0","v2.6.1","v2.7.0","v2.7.1","v2.8.0","v2.8.1","v2.9.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-23656.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}