PHP-CGI Argument Injection (CVE-2024-4577) for 2026-10-17

Oct 17, 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

CVE-2024-4577

MITRE ATT&CK

Tactic: Initial Access (TA0001)
Technique: T1190 — Exploit Public-Facing Application

Observed URIs

Attackers by Country

United States: 1Pakistan: 1Chile: 1Iran: 1
United States125.0%
Pakistan125.0%
Chile125.0%
Iran125.0%

IP Address : ASN : City/Provider

  • 13.143.174.142 : AS207461 Hosting Industry Limited : United States

  • 165.99.207.153 : AS45773 PERN AS Content Servie Provider, Islamabad, Pakistan : Pakistan

  • 190.171.189.85 : AS16629 CTC. CORP S.A. (TELEFONICA EMPRESAS) : Santiago

  • 77.237.70.66 : AS42337 Respina Networks & Beyond PJSC : Tehran

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