CVE-2022-23734: Deserialization of Untrusted Data vulnerability in GitHub Enterprise Server leading to Remote Code Execution
First published: Wed Oct 19 2022(Updated: )
A deserialization of untrusted data vulnerability was identified in GitHub Enterprise Server that could potentially lead to remote code execution on the SVNBridge. To exploit this vulnerability, an attacker would need to gain access via a server-side request forgery (SSRF) that would let an attacker control the data being deserialized. This vulnerability affected all versions of GitHub Enterprise Server prior to v3.6 and was fixed in versions 3.5.3, 3.4.6, 3.3.11, and 3.2.16. This vulnerability was reported via the GitHub Bug Bounty program.
Credit: product-cna@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GitHub Enterprise Server | <3.2.16 | |
| GitHub Enterprise Server | >=3.3.0<3.3.11 | |
| GitHub Enterprise Server | >=3.4.0<3.4.6 | |
| GitHub Enterprise Server | >=3.5.0<3.5.3 |
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Reference Links
- https://docs.github.com/en/enterprise-server@3.2/admin/release-notes#3.2.16
- https://docs.github.com/en/enterprise-server@3.3/admin/release-notes#3.3.11
- https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.6
- https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.3
- https://docs.github.com/en/enterprise-server%403.3/admin/release-notes#3.3.11
- https://docs.github.com/en/enterprise-server%403.4/admin/release-notes#3.4.6
- https://docs.github.com/en/enterprise-server%403.5/admin/release-notes#3.5.3
- https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.16
Frequently Asked Questions
What is CVE-2022-23734?
CVE-2022-23734 is a deserialization of untrusted data vulnerability identified in GitHub Enterprise Server that could lead to remote code execution on the SVNBridge.
How can CVE-2022-23734 be exploited?
To exploit CVE-2022-23734, an attacker would need to gain access via a server-side request forgery (SSRF) that would enable them to execute arbitrary code on the SVNBridge.
Which versions of GitHub Enterprise Server are affected by CVE-2022-23734?
GitHub Enterprise Server versions up to and including 3.2.16, 3.3.0 to 3.3.11, 3.4.0 to 3.4.6, and 3.5.0 to 3.5.3 are affected by CVE-2022-23734.
What is the severity of CVE-2022-23734?
CVE-2022-23734 is classified as a high severity vulnerability with a CVSS score of 8.8.
How do I fix CVE-2022-23734?
To fix CVE-2022-23734, it is recommended to upgrade to a patched version of GitHub Enterprise Server.
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