Vulnerability · Published Aug 1, 2022 · Assigned by GitHub_M
CVE-2022-31179Insufficient escaping of line feeds for CMD in shescape
High 8.1
In plain English
A high-severity injection in shescape from ericcornelissen. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Shescape is a simple shell escape package for JavaScript. Versions prior to 1.5.8 were found to be subject to code injection on windows. This impacts users that use Shescape (any API function) to escape arguments for cmd.exe on Windows An attacker can omit all arguments following their input by including a line feed character (`'\n'`) in the payload. This bug has been patched in [v1.5.8] which you can upgrade to now. No further changes are required. Alternatively, line feed characters (`'\n'`) can be stripped out manually or the user input can be made the last argument (this only limits the impact).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | shescape | 1.5.8 | GHSA-jjc5-fp7p-6f8w |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ericcornelissen | shescape | < 1.5.8 |
Weakness: CWE-74 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H
References
- https://github.com/ericcornelissen/shescape/releases/tag/v1.5.8 x_refsource_MISC
- https://github.com/ericcornelissen/shescape/security/advisories/GHSA-jjc5-fp7p-6f8w x_refsource_CONFIRM
- https://github.com/ericcornelissen/shescape/pull/332 x_refsource_MISC