PHP Group · PHP
CVE-2024-4577
Argument Injection in PHP-CGI
What it is
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.
CISA: PHP, specifically Windows-based PHP used in CGI mode, contains an OS command injection vulnerability that allows for arbitrary code execution. This vulnerability is a patch bypass for CVE-2012-1823.
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Deadline for US federal agencies: July 3, 2024
- Added to the CISA list
- June 12, 2024
- Published
- June 9, 2024
- Severity
- Critical 9.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- >99.9% in the top 0.1% of all known vulnerabilities
- Weakness
- CWE-78
- More details
- NVD · CVE.org · CISA
All references (19)
- https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv
- https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html
- https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/
- https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-…
- https://www.imperva.com/blog/imperva-protects-against-critical-php-vulnerability-cve-2024-4577/
- https://github.com/11whoami99/CVE-2024-4577
- https://github.com/xcanwin/CVE-2024-4577-PHP-RCE
- https://github.com/rapid7/metasploit-framework/pull/19247
- https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/
- https://github.com/watchtowrlabs/CVE-2024-4577
- https://www.php.net/ChangeLog-8.php#8.1.29
- https://www.php.net/ChangeLog-8.php#8.2.20
- https://www.php.net/ChangeLog-8.php#8.3.8
- https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately
- https://isc.sans.edu/diary/30994
- http://www.openwall.com/lists/oss-security/2024/06/07/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3R…
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W45DBOH56NQDRT…
- https://security.netapp.com/advisory/ntap-20240621-0008/
More exploited flaws from PHP Group
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Oct 26, 2026 | Memory Corruption | PHP | Critical 9.2 | >99.9% |
| Oct 26, 2026 | Stale Internal Request-State | PHP | Critical 9.2 | >99.9% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.