PHP-CGI Argument Injection (CVE-2024-4577) for 2026-07-22
Jul 22, 2026
Exploitation
Last Updated: 00:00 UTC
CVE-2024-4577 lets an attacker pass command-line options to PHP-CGI on Windows by using a soft hyphen (%AD) that Windows best-fit mapping turns into a dash. Requests set allow_url_include and auto_prepend_file=php://input so the POST body runs as PHP. The RedTail cryptomining botnet (User-Agent libredtail-http) sprays this against every host it finds.
CVE References
MITRE ATT&CK
Tactic: Initial Access (TA0001)
Technique: T1190 — Exploit Public-Facing Application
Observed URIs
Attackers by Country
| Japan | 1 | 100.0% |
IP Address : ASN : City/Provider
- 101.36.104.242 : AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED : Tokyo