CVEs / CVE-2024-4577
CVE-2024-4577: PHP-CGI OS Command Injection Vulnerability
- Known exploited in the CISA KEV catalog since 12 Jun 2024
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 99.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
Are you affected? Check your servers with Stackurity: it lists the software on each server and the vulnerabilities to fix first.
Check your servers with Stackurity Already using Stackurity? Search for CVE-2024-4577
Summary
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.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| PHP Group PHP | from 8.1.*, before 8.1.29 | 8.1.29 |
| PHP Group PHP | from 8.2.*, before 8.2.20 | 8.2.20 |
| PHP Group PHP | from 8.3.*, before 8.3.8 | 8.3.8 |
| php_group php | from 8.1.0, before 8.1.29 | 8.1.29 |
| php_group php | from 8.2.0, before 8.2.20 | 8.2.20 |
| php_group php | from 8.3.0, before 8.3.8 | 8.3.8 |
Exploitation
| In CISA KEV since | 12 Jun 2024 |
|---|---|
| Due date for US federal agencies | 3 Jul 2024 |
| Used in ransomware campaigns | Known |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-78 |
References
- CVE-2024-4577 on NVD
- CVE-2024-4577 in the CISA KEV catalog
- https://www.php.net/ChangeLog-8.php# (cited by CISA)
- CVE-2024-4577 on OSV
- http://www.openwall.com/lists/oss-security/2024/06/07/1 Mailing 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.html Third Party Advisory
- https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately Third 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/11whoami99/CVE-2024-4577 Exploit
- https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv Exploit, Third Party Advisory
- https://github.com/rapid7/metasploit-framework/pull/19247 Exploit, Issue Tracking, Patch
- https://github.com/watchtowrlabs/CVE-2024-4577 Exploit, Third Party Advisory
- https://github.com/xcanwin/CVE-2024-4577-PHP-RCE Exploit, Third Party Advisory
- https://isc.sans.edu/diary/30994 Exploit, Third Party Advisory
- https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/ Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/ Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/ Mailing List
- https://security.netapp.com/advisory/ntap-20240621-0008/ Third Party Advisory
- https://www.imperva.com/blog/imperva-protects-against-critical-php-vulnerability-cve-2024-4577/ Third Party Advisory
- 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 Release Notes
- https://blog.talosintelligence.com/new-persistent-attacks-japan/ Exploit, Third Party Advisory
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.