CVE-2023-29012 Git CMD erroneously executes `doskey.exe` in the current directory, if it exists
Attackers can execute arbitrary code by placing a malicious doskey.exe in a directory where Git CMD is launched.
- 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-2023-29012?
CVE-2023-29012 is a high-severity path traversal vulnerability in git-for-windows git, published on 25 Apr 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 Git. Prior to version 2.40.1, any user of Git CMD who starts the command in an untrusted directory is impacted by an Uncontrolles Search Path Element vulnerability. Maliciously-placed `doskey.exe` would be executed silently upon running Git CMD. The problem has been patched in Git for Windows v2.40.1. As a workaround, avoid using Git CMD or, if using Git CMD, avoid starting it in an untrusted directory.
Weakness: CWE-427
Which versions are affected by CVE-2023-29012?
It affects 1 product.
Products include Git for Windows Project Git for Windows.
How do I fix CVE-2023-29012?
No fix has been published for CVE-2023-29012 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2023-29012 being exploited?
There is no known exploitation of CVE-2023-29012 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-2023-22743 Git for Windows' installer is susceptible to DLL side loading attacks
Sources
Also known as GHSA-gq5x-v87v-8f7g.