CVE Vulnerability

CVE-2022-41953

Git GUI is a convenient graphical tool that comes with Git for Windows. Its target audience is users who are uncomfortable with using Git on the command-line. Git GUI has a function to clone repositories. Immediately after the local clone is available, Git GUI will automatically post-process it, among other things running a spell checker called `aspell.exe` if it was found. Git GUI is implemented as a Tcl/Tk script. Due to the unfortunate design of Tcl on Windows, the search path when looking for an executable _always includes the current directory_. Therefore, malicious repositories can ship with an `aspell.exe` in their top-level directory which is executed by Git GUI without giving the user a chance to inspect it first, i.e. running untrusted code. This issue has been addressed in version 2.39.1. Users are advised to upgrade. Users unable to upgrade should avoid using Git GUI for cloning. If that is not a viable option, at least avoid cloning from untrusted sources.

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/git-for-windows/git/pull/4219 Patch Third Party Advisory
https://www.tcl.tk/man/tcl8.6/TclCmd/exec.html#M23 Third Party Advisory
https://github.com/git-for-windows/git/security/advisories/GHSA-v4px-mx59-w99c Patch Third Party Advisory
https://github.com/git-for-windows/git/commit/7360767e8dfc1895a932324079f7d45d7791d39f Patch Third Party Advisory
Configurations

Configuration 1
Information

Published : 2023-01-17 10:15

Updated : 2023-01-25 02:13

NVD link : CVE-2022-41953

Mitre link : CVE-2022-41953

Products Affected
No products.
CWE
CWE-426

Untrusted Search Path