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  5. CVE-2023-43655

CVE-2023-43655: Composer Remote Code Execution vulnerability via web-accessible composer.phar

September 29, 2023 (updated February 13, 2025)

Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be impacted if PHP also has register_argc_argv enabled in php.ini.

References

  • github.com/advisories/GHSA-jm6m-4632-36hf
  • github.com/composer/composer
  • 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
  • lists.debian.org/debian-lts-announce/2024/03/msg00030.html
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/66H2WKFUO255T3BZTL72TNYJYH2XM5FG
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7AWYAUZNH565NWPIKGEIYBWHYNM5JGAE
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KFOPGPW2KS37O3KJWBRGTUWHTXCQXBS2
  • nvd.nist.gov/vuln/detail/CVE-2023-43655

Code Behaviors & Features

Detect and mitigate CVE-2023-43655 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 1.10.27, all versions starting from 2.0.0 before 2.2.22, all versions starting from 2.3.0 before 2.6.4

Fixed versions

  • 1.10.27
  • 2.2.22
  • 2.6.4

Solution

Upgrade to versions 1.10.27, 2.2.22, 2.6.4 or above.

Impact 6.4 MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Source file

packagist/composer/composer/CVE-2023-43655.yml

Spotted a mistake? Edit the file on GitLab.

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