CVE-2023-22743 Git for Windows' installer is susceptible to DLL side loading attacks
Attackers can execute arbitrary code with elevated privileges by placing malicious DLLs in specific directories during Git for Windows installation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-22743?
CVE-2023-22743 is a high-severity code injection vulnerability in git-for-windows git, published on 14 Feb 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-426
Which versions are affected by CVE-2023-22743?
It affects 1 product.
Products include Git for Windows Project Git for Windows.
How do I fix CVE-2023-22743?
No fix has been published for CVE-2023-22743 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2023-22743 being exploited?
There is no known exploitation of CVE-2023-22743 in the wild and no public exploit code.
Other vulnerabilities in git-for-windows git
- CVE-2023-23618 gitk can inadvertently call executables in the worktree
- CVE-2022-24767 Other in Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)
- CVE-2016-9274 Privilege escalation in n/a
- CVE-2023-29011 Git for Windows's config file of `connect.exe` is susceptible to malicious placing
- CVE-2023-29012 Git CMD erroneously executes `doskey.exe` in the current directory, if it exists