CVE-2023-22490
Description
Git is a revision control system. Using a specially-crafted repository, Git 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 can be tricked into using its local clone optimization even when using a non-local transport. Though Git will abort local clones whose source `$GIT_DIR/objects` directory contains symbolic links, the `objects` directory itself may still be a symbolic link. These two may be combined to include arbitrary files based on known paths on the victim's filesystem within the malicious repository's working copy, allowing for data exfiltration in a similar manner as CVE-2022-39253. 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. If upgrading is impractical, two short-term workarounds are available. Avoid cloning repositories from untrusted sources with `--recurse-submodules`. Instead, consider cloning repositories without recursively cloning their submodules, and instead run `git submodule update` at each layer. Before doing so, inspect each new `.gitmodules` file to ensure that it does not contain suspicious module URLs.
How to fix
- git-scm git2.30.8, 2.31.7, 2.32.6, 2.33.7, 2.34.7, 2.35.7, 2.36.5, 2.37.6, 2.38.4, 2.39.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| git-scm git | v < 2.30.8, 2.31.0 ≤ v < 2.31.7, 2.32.0 ≤ v < 2.32.6, 2.33.0 ≤ v < 2.33.7, 2.34.0 ≤ v < 2.34.7, 2.35.0 ≤ v < 2.35.7, 2.36.0 ≤ v < 2.36.5, 2.37.0 ≤ v < 2.37.6, 2.38.0 ≤ v < 2.38.4, 2.39.0 ≤ v < 2.39.2 | 2.30.8, 2.31.7, 2.32.6, 2.33.7, 2.34.7, 2.35.7, 2.36.5, 2.37.6, 2.38.4, 2.39.2 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.