Exploitation Summary
EIP tracks 2 public exploits for CVE-2023-23946. PoCs published by tralsesec, bruno-1337.
AI-analyzed exploit summary This repository contains a functional exploit for CVE-2023-23946, leveraging Git's improper handling of symbolic links during patch application to write arbitrary files. The exploit dynamically generates a Git patch file that renames a symlink and creates a new file within the symlink's target directory.
Description
Git, a revision control system, is vulnerable to path traversal prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8. By feeding a crafted input to `git apply`, a path outside the working tree can be overwritten as the user who is running `git apply`. A fix has been prepared and will appear in v2.39.2, v2.38.4, v2.37.6, v2.36.5, v2.35.7, v2.34.7, v2.33.7, v2.32.6, v2.31.7, and v2.30.8. As a workaround, use `git apply --stat` to inspect a patch before applying; avoid applying one that creates a symbolic link and then creates a file beyond the symbolic link.
Exploits (2)
This repository contains a functional exploit for CVE-2023-23946, leveraging Git's improper handling of symbolic links during patch application to write arbitrary files. The exploit dynamically generates a Git patch file that renames a symlink and creates a new file within the symlink's target directory.
The PoC exploits a flaw in Git's handling of symbolic links, allowing an attacker to bypass protections and write to files outside the working tree by renaming a symlink and creating a new file in its place. The provided patch demonstrates how to manipulate the symlink to achieve arbitrary file write.
References (3)
Scores
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N