Code Injection in composer - CVE-2023-43655
Published: September 29, 2023 / Updated: October 2, 2023
Vulnerability identifier: #VU81296
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2023-43655
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: getcomposer.org
Affected software:
composer
composer
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper access restrictions. A remote attacker can send a specially crafted request to the server with published composer.phar and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that "register_argc_argv" option is enabled in php.ini.
How to mitigate CVE-2023-43655
Install updates from vendor's website.