A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker to gain unauthorized read permission to files by deploying arbitrary symbolic links to a GitHub Pages site with a specially crafted artifact tarball. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.12 and was fixed in versions 3.8.15, 3.9.10, 3.10.7, 3.11.5. This vulnerability was reported via the GitHub Bug Bounty program.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
| Link | Tags |
|---|---|
| https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.15 | release notes vendor advisory |
| https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.10 | release notes vendor advisory |
| https://docs.github.com/en/enterprise-server@3.10/admin/release-notes#3.10.7 | release notes vendor advisory |
| https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.5 | release notes vendor advisory |