# CVE-2024-4577

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.

- Page: https://www.vulneraibility.com/cve/CVE-2024-4577
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2024-06-12; CISA due date 2024-07-03; known ransomware use
- EPSS: 99.99% (percentile 100.0)
- Public exploit code: 1 on Exploit-DB · 1 Metasploit module · 73 GitHub proofs of concept · 1 Nuclei template (first 2024-06-07)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2024-06-15)
- Weakness: CWE-78
- Also known as: GHSA-3qgc-jrrr-25jv
- Published: 2024-06-09

## Affected versions

- libphp: affected < 8.1.29; >= 8.2.0 and < 8.2.20; >= 8.3.0 and < 8.3.8; fixed in 8.1.29, 8.2.20, 8.3.8 (Bitnami advisory, via OSV)
- PHP: affected < 8.1.29; >= 8.2.0 and < 8.2.20; >= 8.3.0 and < 8.3.8; fixed in 8.1.29, 8.2.20, 8.3.8 (Bitnami advisory, via OSV)
- PHP Group PHP: affected >= 8.1.* and < 8.1.29; >= 8.2.* and < 8.2.20; >= 8.3.* and < 8.3.8

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv
- [other] https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html
- [other] https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/
- [other] https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/
- [other] https://www.imperva.com/blog/imperva-protects-against-critical-php-vulnerability-cve-2024-4577/
- [other] https://github.com/11whoami99/CVE-2024-4577
- [other] https://github.com/xcanwin/CVE-2024-4577-PHP-RCE
- [other] https://github.com/rapid7/metasploit-framework/pull/19247
- [other] https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/
- [other] https://github.com/watchtowrlabs/CVE-2024-4577
- [other] https://www.php.net/ChangeLog-8.php#8.1.29
- [other] https://www.php.net/ChangeLog-8.php#8.2.20
- [other] https://www.php.net/ChangeLog-8.php#8.3.8
- [other] https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately
- [other] https://isc.sans.edu/diary/30994
- [other] http://www.openwall.com/lists/oss-security/2024/06/07/1
- [other] https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/
- [other] https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/
- [other] https://security.netapp.com/advisory/ntap-20240621-0008/
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4577
- [other] https://www.vicarius.io/vsociety/posts/php-cgi-os-command-injection-vulnerability-cve-2024-4577
- [other] https://www.vicarius.io/vsociety/posts/php-cgi-argument-injection-to-rce-cve-2024-4577
- [other] https://blog.talosintelligence.com/new-persistent-attacks-japan/

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.