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GHSA-7c6p-848j-wh5h
No affected components available
Impact
Several files within the local working directory are included during the invocation of Composer and in the context of the executing user.
As such, under certain conditions arbitrary code execution may lead to local privilege escalation, provide lateral user movement or malicious code execution when Composer is invoked within a directory with tampered files.
All Composer CLI commands are affected, including composer.phar's self-update.
The following are of high risk:
- Composer being run with sudo.
- Pipelines which may execute Composer on untrusted projects.
- Shared environments with developers who run Composer individually on the same project.
Patches
2.7.0, 2.2.23
Workarounds
- It is advised that the patched versions are applied at the earliest convenience.
Where not possible, the following should be addressed:
- Remove all sudo composer privileges for all users to mitigate root privilege escalation.
- Avoid running Composer within an untrusted directory, or if needed, verify that the contents of
vendor/composer/InstalledVersions.phpandvendor/composer/installed.phpdo not include untrusted code.
A reset can also be done on these files by the following:
rm vendor/composer/installed.php vendor/composer/InstalledVersions.php
composer install --no-scripts --no-plugins
The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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