CVE-2024-4577

Description

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.

How to fix CVE-2024-4577

To remediate CVE-2024-4577, upgrade the affected package to a fixed version below.

• —upgrade to 8.1.29 or later
• —upgrade to 8.1.29 or later
• —upgrade to 8.1.29 or later

Is CVE-2024-4577 being exploited?

Yes — CVE-2024-4577 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.

Affected packages (3)

• from 0, < 8.1.29, >= 8.2.0, < 8.2.20, >= 8.3.0, < 8.3.8
• from 0, < 8.1.29, >= 8.2.0, < 8.2.20, >= 8.3.0, < 8.3.8
• from 0, < 8.1.29, >= 8.2.0, < 8.2.20, >= 8.3.0, < 8.3.8

CVSS scores

References (24)

• WEBwww.openwall.com/lists/oss-security/2024/06/07/1
• WEBarstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/
• WEBblog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html
• WEBblog.talosintelligence.com/new-persistent-attacks-japan/