Vulnerability · Published Apr 7, 2023 · Assigned by GitHub_P
CVE-2023-23761Improper authentication vulnerability in GitHub Enterprise Server leading to modification of secret gists
High 7.7
In plain English
A high-severity improper authentication in Enterprise Server from GitHub. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| GitHub | Enterprise Server | 3.4.0 – through 3.4.173.5.0 – through 3.5.143.6.0 – through 3.6.103.7.0 – through 3.7.73.8.0 – before 3.8.1 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
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