CVE-2023-22743: Git for Windows' installer is susceptible to DLL side loading attacks
Git for Windows is the Windows port of the revision control system Git. Prior to Git for Windows version 2.39.2, by carefully crafting DLL and putting into a subdirectory of a specific name living next to the Git for Windows installer, Windows can be tricked into side-loading said DLL. This potentially allows users with local write access to place malicious payloads in a location where automated upgrades might run the Git for Windows installer with elevation. Version 2.39.2 contains a patch for this issue. Some workarounds are available. Never leave untrusted files in the Downloads folder or its sub-folders before executing the Git for Windows installer, or move the installer into a different directory before executing it.
Other sources
GitHub: CVE-2023-22743 Git for Windows Installer Elevation of Privilege Vulnerability
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2023-22743?
CVE-2023-22743 is a vulnerability in Git for Windows that allows for an elevation of privilege.
How can Windows be tricked into side-loading a DLL using CVE-2023-22743?
By carefully crafting a DLL and putting it into a subdirectory with a specific name next to the Git for Windows installer, Windows can be tricked into side-loading the DLL.
What is the severity of CVE-2023-22743?
CVE-2023-22743 has a severity rating of 7.3, which is considered high.
Which versions of Git for Windows are affected by CVE-2023-22743?
Git for Windows versions prior to 2.39.2 are affected by CVE-2023-22743.
How can I fix CVE-2023-22743?
To fix CVE-2023-22743, update Git for Windows to version 2.39.2 or newer.