CVE-2024-4577

high-risk

Published 2024-06-09

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.

Do I need to act?

94.4% chance of exploitation in next 30 days

EPSS score — higher than 6% of all CVEs

CISA KEV: actively exploited in the wild

On the Known Exploited Vulnerabilities catalog — federal agencies must patch

1 public exploit available

52331

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (3)

Php

Fedora

Affected Vendors

Php Fedoraproject

References (42)

Mailing List http://www.openwall.com/lists/oss-security/2024/06/07/1

Exploit https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-r...

Third Party Advisory https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html

Third Party Advisory https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately

Exploit https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-i...

Exploit https://github.com/11whoami99/CVE-2024-4577

Exploit https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv

Exploit https://github.com/rapid7/metasploit-framework/pull/19247

Exploit https://github.com/watchtowrlabs/CVE-2024-4577

Exploit https://github.com/xcanwin/CVE-2024-4577-PHP-RCE

Exploit https://isc.sans.edu/diary/30994

Exploit https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/

Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproje...

Third Party Advisory https://security.netapp.com/advisory/ntap-20240621-0008/

Third Party Advisory https://www.imperva.com/blog/imperva-protects-against-critical-php-vulnerability...

Release Notes https://www.php.net/ChangeLog-8.php#8.1.29

Release Notes https://www.php.net/ChangeLog-8.php#8.2.20

Release Notes https://www.php.net/ChangeLog-8.php#8.3.8

Mailing List http://www.openwall.com/lists/oss-security/2024/06/07/1

and 22 more references

/ 100

high-risk

Severity 32/34 · Critical

Exploitability 27/34 · High

Exposure 9/34 · Low