Description
The Management Console in GitHub Enterprise 2.8.x before 2.8.7 has a deserialization issue that allows unauthenticated remote attackers to execute arbitrary code. This occurs because the enterprise session secret is always the same, and can be found in the product's source code. By sending a crafted cookie signed with this secret, one can call Marshal.load with arbitrary data, which is a problem because the Marshal data format allows Ruby objects.
Metrics
CVSS 3.0 9.8/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://enterprise.github.com/releases/2.8.7/notesVendor Advisory
- https://www.exablue.de/blog/2017-03-15-github-enterprise-remote-code-execution.htmlExploit, Third Party Advisory
- https://enterprise.github.com/releases/2.8.7/notesVendor Advisory
- https://www.exablue.de/blog/2017-03-15-github-enterprise-remote-code-execution.htmlExploit, Third Party Advisory
Timeline
- Published
- Mar 28, 2019
- Last modified
- Jun 17, 2026
- NVD status
- Modified