PHP-CGI Argument Injection (CVE-2024-4577) for 2026-09-14
Sep 14, 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
| Germany | 1 | 25.0% |
| South Korea | 1 | 25.0% |
| Japan | 1 | 25.0% |
| Kazakhstan | 1 | 25.0% |
IP Address : ASN : City/Provider
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167.86.76.141 : AS51167 Contabo GmbH : Nuremberg
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222.119.5.40 : AS4766 Korea Telecom : Busan
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43.167.198.92 : AS132203 Tencent Building, Kejizhongyi Avenue : Tokyo
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46.8.31.84 : AS203087 Fedinyak Sergey Vyacheslavovich : Karaganda