CVE-2021-41116: Command injection in composer on Windows
First published: Tue Oct 05 2021(Updated: )
### Impact Windows users running Composer to install untrusted dependencies are affected and should definitely upgrade for safety. Other OSs and WSL are not affected. ### Patches 1.10.23 and 2.1.9 fix the issue ### Workarounds None
Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/composer/composer | >=2.0.0-alpha1<2.1.9<1.10.23 | |
| Getcomposer Composer | <1.10.23 | |
| Getcomposer Composer | >=2.0.0<2.1.9 | |
| Tenable Tenable.sc | <5.21.0 | |
| composer/composer/composer | >=2.0.0-alpha1<2.1.9 | 2.1.9 |
| composer/composer/composer | <1.10.23 | 1.10.23 |
| <1.10.23 | ||
| >=2.0.0<2.1.9 | ||
| <5.21.0 |
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Reference Links
- https://github.com/composer/composer/security/advisories/GHSA-frqg-7g38-6gcf
- https://github.com/composer/composer/commit/ca5e2f8d505fd3bfac6f7c85b82f2740becbc0aa
- https://www.tenable.com/security/tns-2022-09
- https://www.sonarsource.com/blog/securing-developer-tools-package-managers/
- https://nvd.nist.gov/vuln/detail/CVE-2021-41116
- https://github.com/advisories/GHSA-frqg-7g38-6gcf (Advisory)
- https://github.com/FriendsOfPHP/security-advisories/blob/master/composer/composer/CVE-2021-41116.yaml
Frequently Asked Questions
What is CVE-2021-41116?
CVE-2021-41116 is a vulnerability in Composer, an open source dependency manager for the PHP language, that allows for command injection on Windows systems.
Who is affected by CVE-2021-41116?
Windows users running Composer to install untrusted dependencies are affected by CVE-2021-41116.
How severe is CVE-2021-41116?
CVE-2021-41116 has a severity rating of 9.8 (Critical).
How can I fix CVE-2021-41116?
To fix CVE-2021-41116, affected users should upgrade to a version of Composer that has the issue resolved (2.1.9 or later for versions 2.x, or 1.10.24 or later for versions 1.x).
Where can I find more information about CVE-2021-41116?
More information about CVE-2021-41116 can be found in the following references: [GitHub Security Advisory](https://github.com/composer/composer/security/advisories/GHSA-frqg-7g38-6gcf), [GitHub Commit](https://github.com/composer/composer/commit/ca5e2f8d505fd3bfac6f7c85b82f2740becbc0aa), and [Tenable Security Advisory](https://www.tenable.com/security/tns-2022-09).
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