CVE-2023-43655: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Composer is a dependency manager for PHP. Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be subject to a remote code execution vulnerability if PHP also has register_argc_argv enabled in php.ini. Versions 2.6.4, 2.2.22 and 1.10.27 patch this vulnerability. Users are advised to upgrade. Users unable to upgrade should make sure register_argc_argv is disabled in php.ini, and avoid publishing composer.phar to the web as this is not best practice.
References
- github.com/advisories/GHSA-jm6m-4632-36hf
- github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d
- github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c
- github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c
- github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf
- nvd.nist.gov/vuln/detail/CVE-2023-43655
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