CVE-2024-4577
Last modified
CVE-2024-4577 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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 has confirmed active exploitation in the wild. EPSS estimates a 99.99% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | >= 8.1.0, < 8.1.29 |
| Php | Php | >= 8.2.0, < 8.2.20 |
| Php | Php | >= 8.3.0, < 8.3.8 |
| Fedoraproject | Fedora | 39 |
| Fedoraproject | Fedora | 40 |
References
- http://www.openwall.com/lists/oss-security/2024/06/07/1Mailing List, Third Party Advisory
- https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/Exploit, Press/Media Coverage, Third Party Advisory
- https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.htmlThird Party Advisory
- https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediatelyThird Party Advisory
- https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/Exploit, Third Party Advisory
- https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jvExploit, Third Party Advisory
- https://github.com/rapid7/metasploit-framework/pull/19247Exploit, Issue Tracking, Patch
- https://github.com/watchtowrlabs/CVE-2024-4577Exploit, Third Party Advisory
- https://github.com/xcanwin/CVE-2024-4577-PHP-RCEExploit, Third Party Advisory
- https://isc.sans.edu/diary/30994Exploit, Third Party Advisory
- https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/Exploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20240621-0008/Third Party Advisory
- https://www.php.net/ChangeLog-8.php#8.1.29Release Notes
- https://www.php.net/ChangeLog-8.php#8.2.20Release Notes
- https://www.php.net/ChangeLog-8.php#8.3.8Release Notes
- http://www.openwall.com/lists/oss-security/2024/06/07/1Mailing List, Third Party Advisory
- https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/Exploit, Press/Media Coverage, Third Party Advisory
- https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.htmlThird Party Advisory
- https://blog.talosintelligence.com/new-persistent-attacks-japan/Exploit, Third Party Advisory
- https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediatelyThird Party Advisory
- https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/Exploit, Third Party Advisory
- https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jvExploit, Third Party Advisory
- https://github.com/rapid7/metasploit-framework/pull/19247Exploit, Issue Tracking, Patch
- https://github.com/watchtowrlabs/CVE-2024-4577Exploit, Third Party Advisory
- https://github.com/xcanwin/CVE-2024-4577-PHP-RCEExploit, Third Party Advisory
- https://isc.sans.edu/diary/30994Exploit, Third Party Advisory
- https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/Exploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20240621-0008/Third Party Advisory
- https://www.php.net/ChangeLog-8.php#8.1.29Release Notes
- https://www.php.net/ChangeLog-8.php#8.2.20Release Notes
- https://www.php.net/ChangeLog-8.php#8.3.8Release Notes
- https://www.vicarius.io/vsociety/posts/php-cgi-argument-injection-to-rce-cve-2024-4577Exploit, Third Party Advisory
- https://www.vicarius.io/vsociety/posts/php-cgi-os-command-injection-vulnerability-cve-2024-4577Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4577US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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