CVE-2023-43655

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CVE-2023-43655

Summary: Remote Code Execution via web-accessible composer.phar

Details: 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: https://lists.debian.org/debian-lts-announce/2024/03/msg00030.html, https://lists.fedoraproject.org/archives/list/[email protected]/message/66H2WKFUO255T3BZTL72TNYJYH2XM5FG/, https://lists.fedoraproject.org/archives/list/[email protected]/message/7AWYAUZNH565NWPIKGEIYBWHYNM5JGAE/, https://lists.fedoraproject.org/archives/list/[email protected]/message/KFOPGPW2KS37O3KJWBRGTUWHTXCQXBS2/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43655.json, https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf, https://nvd.nist.gov/vuln/detail/CVE-2023-43655, https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d, https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c, https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c