VULNERABILITY INTELLIGENCE

CVE-2024-23656

CVSS score7.5 HIGH
EPSS probability0.43%
CISA KEVNot currently listed
Published2024-01-25
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

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.

Weakness classification

  • CWE-326: Inadequate Encryption Strength
  • CWE-757: Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

Primary references