CVE-2022-24725 Exposure of home directory through shescape on Unix with Bash
Attackers can expose the home directory path on Unix systems using Bash when the interpolation option is enabled in the shescape library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-24725?
CVE-2022-24725 is a medium-severity vulnerability in ericcornelissen shescape, published on 3 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Shescape is a shell escape package for JavaScript. An issue in versions 1.4.0 to 1.5.1 allows for exposure of the home directory on Unix systems when using Bash with the `escape` or `escapeAll` functions from the _shescape_ API with the `interpolation` option set to `true`. Other tested shells, Dash and Zsh, are not affected. Depending on how the output of _shescape_ is used, directory traversal may be possible in the application using _shescape_. The issue was patched in version 1.5.1. As a workaround, manually escape all instances of the tilde character (`~`) using `arg.replace(/~/g, "\\~")`.
Which versions are affected by CVE-2022-24725?
2 open source packages ship an affected version, including shescape. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
shescape npm | From 1.4.0 | 1.5.1 |
shescape npm | From 1.4.0 | 1.5.1 |
Products include Shescape Project Shescape.
How do I fix CVE-2022-24725?
Upgrade shescape to 1.5.1 or later.
Is CVE-2022-24725 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-24725 exists.
Other vulnerabilities in ericcornelissen shescape
- CVE-2022-31180 Insufficient escaping of whitespace in shescape
- CVE-2022-31179 Insufficient escaping of line feeds for CMD in shescape
- CVE-2026-32094 Shescape escape() leaves bracket glob expansion active on Bash, BusyBox, and Dash
- CVE-2023-40185 Shescape on Windows escaping may be bypassed in threaded context
- CVE-2021-21384 Null characters not escaped in shescape
Sources
Also known as GHSA-446w-rrm4-r47f.