CVE-2023-43655
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with an admin-level account, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 1.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.5% in the next 30 days (EPSS).
- Severity: 6.4 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.5% · EPSS, next 30 days
- Weakness
- CWE-74
- Record status
- Analyzed
Affected
- Getcomposer Composer < 1.10.27
- Getcomposer Composer < 2.2.21
- Getcomposer Composer < 2.6.4
- Debian Linux 10.0
- Fedoraproject Fedora 37
- Fedoraproject Fedora 38
Attack profile CVSS 3.1 · 6.4
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-43655.md and follow it. Check whether this project is affected by CVE-2023-43655. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d
- https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c
- https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c
- https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf
- https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d
- https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c
- https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c
- https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf
References
- https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d
- https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c
- https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c
- https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf
- 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/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d
- https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c
- https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c
- https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf
- 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/