PHP-CGI Argument Injection (CVE-2024-4577) for 2026-08-22

Aug 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

CVE-2024-4577

MITRE ATT&CK

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

Observed URIs

Attackers by Country

Singapore: 1Vietnam: 1France: 1China: 1United States: 1
Singapore120.0%
Vietnam120.0%
France120.0%
China120.0%
United States120.0%

IP Address : ASN : City/Provider

  • 101.47.8.187 : AS150436 Byteplus Pte. Ltd. : Singapore

  • 160.250.132.238 : AS150895 EZ TECHNOLOGY COMPANY LIMITED : Vietnam

  • 185.177.72.9 : AS211590 Bucklog SARL : France

  • 223.85.251.55 : AS9808 China Mobile Communications Group Co., Ltd. : China

  • 43.110.38.5 : AS45102 Alibaba (US) Technology Co., Ltd. : United States

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