CVE-2024-23656

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.

Score

CVSS 3.1 7.5 High

Status

Modified - security-advisories@github.com

Published

2024-01-25

Last modified

2025-06-03

Weaknesses

CWE-326, CWE-757

Affected products

• Dex (Dexidp)
• Dex (Linuxfoundation)

References

• https://github.com/dexidp/dex/blob/70d7a2c7c1bb2646b1a540e49616cbc39622fb83/cmd/dex/serve.go#L425
• https://github.com/dexidp/dex/commit/5bbdb4420254ba73b9c4df4775fe7bdacf233b17
• https://github.com/dexidp/dex/issues/2848
• https://github.com/dexidp/dex/pull/2964
• https://github.com/dexidp/dex/security/advisories/GHSA-gr79-9v6v-gc9r