CVE-2023-23764 Incorrect comparison vulnerability in GitHub Enterprise Server leading to commit smuggling

Medium 4.8 Published Updated

Attackers with write access can smuggle commits by exploiting incorrect comparisons, causing the pull request UI to display misleading diffs.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-23764?

CVE-2023-23764 is a medium-severity vulnerability in Github Enterprise Server, published on 27 Jul 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff within the GitHub pull request UI. To do so, an attacker would need write access to the repository. This vulnerability affected GitHub Enterprise Server versions 3.7.0 and above and was fixed in versions 3.7.9, 3.8.2, and 3.9.1. This vulnerability was reported via the GitHub Bug Bounty program.

Weakness: CWE-697

Which versions are affected by CVE-2023-23764?

It affects 1 product.

Products include Github Enterprise Server.

How do I fix CVE-2023-23764?

No fix has been published for CVE-2023-23764 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-23764 being exploited?

There is no known exploitation of CVE-2023-23764 in the wild and no public exploit code.

All Github Enterprise Server vulnerabilities

Sources

Also known as GHSA-97c7-2459-g94v.

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