CVE-2023-23761

Summary

An improper authentication vulnerability was identified in GitHub Enterprise Server that allowed an unauthorized actor to modify other users' secret gists by authenticating through an SSH certificate authority. To do so, a user had to know the secret gist's URL. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program.

Affected Software

Weaknesses

• CWE-287: CWE-287 Improper Authentication

ADP Enrichment

CVE Program Container

Additional References

• https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1
• https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8
• https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11
• https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15
• https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1
• https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8
• https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11
• https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15
• https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18

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