CVE-2017-18365

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.

• CWE-502

• 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

Published

Mar 28, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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