CVE-2017-18365
First published: Thu Mar 28 2019(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GitHub GitHub | >=2.8.0<2.8.7 | |
| GitHub GitHub | =2.8.7 |
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Reference Links
Frequently Asked Questions
What is CVE-2017-18365?
CVE-2017-18365 is a vulnerability in GitHub Enterprise 2.8.x before 2.8.7 that allows unauthenticated remote attackers to execute arbitrary code.
How severe is CVE-2017-18365?
CVE-2017-18365 is a critical vulnerability with a severity score of 9.8.
How does CVE-2017-18365 occur?
CVE-2017-18365 occurs due to a deserialization issue in the Management Console of GitHub Enterprise where the enterprise session secret is always the same and can be found in the product's source code.
How can I fix CVE-2017-18365?
To fix CVE-2017-18365, upgrade to GitHub Enterprise version 2.8.7 or higher.
Where can I find more information about CVE-2017-18365?
You can find more information about CVE-2017-18365 in the GitHub Enterprise 2.8.7 release notes and the Exablue blog post.
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