CVE Catalog

Actively exploited in the wild

PHP-CGI OS Command Injection Vulnerability

PHP Group - PHP · Listed in the CISA KEV since 2024-06-12. This indicates confirmed attacks in production environments.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CVE-2024-4577

CriticalCVSS 9.8KEV
Published: Updated: Translated: NVD NIST

Summary

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows may use "Best-Fit" behavior to replace characters in command line given to Win32 API functions. PHP CGI module may misinterpret those characters as PHP options, which may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc.

Risk Assessment

An attacker can remotely execute arbitrary PHP code, disclose source code, or take control of the server.

Recommendation

Update PHP to version 8.1.29, 8.2.20, 8.3.8 or later.

Other vulnerabilities in PHP

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Original NVD description (English source)

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows may use "Best-Fit" behavior to replace characters in command line given to Win32 API functions. PHP CGI module may misinterpret those characters as PHP options, which may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS