CVE-2023-52892

Summary

In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/phpseclib/phpseclib/issues/1943
• https://github.com/phpseclib/phpseclib/releases/tag/3.0.33
• https://github.com/phpseclib/phpseclib/commit/6cd6e8ceab9f2b55c8cd81d2192bf98cbeaf4627
• https://github.com/x509-name-testing/name_testing_artifacts

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: total

References

• https://github.com/phpseclib/phpseclib/issues/1943
• https://github.com/phpseclib/phpseclib/releases/tag/3.0.33
• https://github.com/phpseclib/phpseclib/commit/6cd6e8ceab9f2b55c8cd81d2192bf98cbeaf4627
• https://github.com/x509-name-testing/name_testing_artifacts

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