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CVE-2024-4577

Status Candidate

Overview

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.

Related Files

PHP CGI Argument Injection Remote Code Execution
Posted Jun 18, 2024
Authored by Orange Tsai, sfewer-r7, WatchTowr | Site metasploit.com

This Metasploit module exploits a PHP CGI argument injection vulnerability affecting PHP in certain configurations on a Windows target. A vulnerable configuration is locale dependant (such as Chinese or Japanese), such that the Unicode best-fit conversion scheme will unexpectedly convert a soft hyphen (0xAD) into a dash (0x2D) character. Additionally a target web server must be configured to run PHP under CGI mode, or directly expose the PHP binary. This issue has been fixed in PHP 8.3.8 (for the 8.3.x branch), 8.2.20 (for the 8.2.x branch), and 8.1.29 (for the 8.1.x branch). PHP 8.0.x and below are end of life and have note received patches. XAMPP is vulnerable in a default configuration, and we can target the /php-cgi/php-cgi.exe endpoint. To target an explicit .php endpoint (e.g. /index.php), the server must be configured to run PHP scripts in CGI mode.

tags | exploit, web, cgi, php
systems | windows
advisories | CVE-2024-4577
SHA-256 | c2545000b9fdd9d40a19e238932d2917bdfb1a41c680df6e0ffb2128341c38ef
PHP Remote Code Execution
Posted Jun 14, 2024
Authored by Yesith Alvarez

PHP versions prior to 8.3.8 suffer from a remote code execution vulnerability.

tags | exploit, remote, php, code execution
advisories | CVE-2024-4577
SHA-256 | 6d8851066f1e1d5a5aa1172f697d6dfd3debd910db8f3f51cfdc80ab2a6cb6ae
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