GHSA-x7cr-6qr6-2hh6

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GHSA-x7cr-6qr6-2hh6

Summary: Missing input validation can lead to command execution in composer

Details: The Composer method `VcsDriver::getFileContent()` with user-controlled `$file` or `$identifier` arguments is susceptible to an argument injection vulnerability. It can be leveraged to gain arbitrary command execution if the Mercurial or the Git driver are used. This led to a vulnerability on Packagist.org and Private Packagist, i.e., using the composer.json `readme` field as a vector for injecting parameters into the `$file` argument for the Mercurial driver or via the `$identifier` argument for the Git and Mercurial drivers. Composer itself can be attacked through branch names by anyone controlling a Git or Mercurial repository, which is explicitly listed by URL in a project's composer.json. To the best of our knowledge, this was not actively exploited. The vulnerability has been patched on Packagist.org and Private Packagist within a day of the vulnerability report.

References: https://github.com/composer/composer/security/advisories/GHSA-x7cr-6qr6-2hh6, https://nvd.nist.gov/vuln/detail/CVE-2022-24828, https://github.com/composer/composer/commit/2c40c53637c5c7e43fff7c09d3d324d632734709, https://github.com/FriendsOfPHP/security-advisories/blob/master/composer/composer/CVE-2022-24828.yaml, https://github.com/composer/composer, https://lists.fedoraproject.org/archives/list/[email protected]/message/625MT3IKWKFVIWLSYZFSXHVUA2LES7YQ, https://lists.fedoraproject.org/archives/list/[email protected]/message/GWT6LDSRY7SFMTDZWJ4MS2ZBXHL7VQEF, https://lists.fedoraproject.org/archives/list/[email protected]/message/QD7JQWL6C4GVROO25DTXWYWM6BPOPPCG, https://www.tenable.com/security/tns-2022-09