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  5. CVE-2024-23656

CVE-2024-23656: Dex discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers

January 26, 2024 (updated May 27, 2025)

Dex 2.37.0 is serving HTTPS with insecure TLS 1.0 and TLS 1.1.

References

  • github.com/advisories/GHSA-gr79-9v6v-gc9r
  • github.com/dexidp/dex
  • github.com/dexidp/dex/blob/70d7a2c7c1bb2646b1a540e49616cbc39622fb83/cmd/dex/serve.go
  • github.com/dexidp/dex/commit/5bbdb4420254ba73b9c4df4775fe7bdacf233b17
  • github.com/dexidp/dex/issues/2848
  • github.com/dexidp/dex/pull/2964
  • github.com/dexidp/dex/security/advisories/GHSA-gr79-9v6v-gc9r
  • nvd.nist.gov/vuln/detail/CVE-2024-23656

Code Behaviors & Features

Detect and mitigate CVE-2024-23656 with GitLab Dependency Scanning

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Affected versions

All versions before 0.0.0-20240125115555-5bbdb4420254, all versions starting from 2.37.0 before 2.38.0, version 2.37.0

Fixed versions

  • 2.38.0
  • 0.0.0-20240125115555-5bbdb4420254

Solution

Upgrade to versions 0.0.0-20240125115555-5bbdb4420254, 2.38.0 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-326: Inadequate Encryption Strength

Source file

go/github.com/dexidp/dex/CVE-2024-23656.yml

Spotted a mistake? Edit the file on GitLab.

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