CVE-2023-43655— Remote Code Execution via web-accessible composer.phar
Quick assessment
Affected
composer composer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
composer是一个应用软件。提供一个声明，管理和安装PHP项目的依赖项。 Composer存在注入漏洞，该漏洞源于容易受到远程代码执行漏洞的影响。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-43655
Vulnerability Information
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Vulnerability Title
Remote Code Execution via web-accessible composer.phar
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
composer 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
composer是一个应用软件。提供一个声明，管理和安装PHP项目的依赖项。 Composer存在注入漏洞，该漏洞源于容易受到远程代码执行漏洞的影响。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-43655
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2023-43655 (3)
Vendor Advisories for CVE-2023-43655 (1)
-
https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf x_refsource_CONFIRM
Mailing List Discussions for CVE-2023-43655 (3)
IV. Related Vulnerabilities
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Same weakness: CWE-74
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V. Comments for CVE-2023-43655
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