Vulnerability Monitor

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CVE-2023-43655

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.

Published

2023-09-29T20:15:09.987

Last Modified

2025-04-23T17:31:40.740

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 6.4 (MEDIUM)

Weaknesses

Type: Secondary
CWE-74
Type: Primary
CWE-74

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	getcomposer	composer	< 1.10.27	Yes
Application	getcomposer	composer	< 2.2.21	Yes
Application	getcomposer	composer	< 2.6.4	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	fedoraproject	fedora	37	Yes
Operating System	fedoraproject	fedora	38	Yes

References

https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d Patch ([email protected])
https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c Patch ([email protected])
https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c Patch ([email protected])
https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf Vendor Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2024/03/msg00030.html Mailing List ([email protected])
https://lists.fedoraproject.org/archives/list/[email protected]/message/66H2WKFUO255T3BZTL72TNYJYH2XM5FG/ Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/[email protected]/message/7AWYAUZNH565NWPIKGEIYBWHYNM5JGAE/ Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/[email protected]/message/KFOPGPW2KS37O3KJWBRGTUWHTXCQXBS2/ Mailing List, Third Party Advisory ([email protected])
https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2024/03/msg00030.html Mailing List (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/66H2WKFUO255T3BZTL72TNYJYH2XM5FG/ Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/7AWYAUZNH565NWPIKGEIYBWHYNM5JGAE/ Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/KFOPGPW2KS37O3KJWBRGTUWHTXCQXBS2/ Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)