CVE-2023-43655

Severity CVSS v4.0:

Pending analysis

Type:

CWE-74 Injection

Publication date:

29/09/2023

Last modified:

23/04/2025

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

6.40

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:getcomposer:composer::::::::		1.10.27 (excluding)
cpe:2.3:a:getcomposer:composer::::::::	2.0.0 (including)	2.2.21 (excluding)
cpe:2.3:a:getcomposer:composer::::::::	2.3.0 (including)	2.6.4 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:::::::*
cpe:2.3:o:fedoraproject:fedora:37:::::::*
cpe:2.3:o:fedoraproject:fedora:38:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-43655

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools