PHP-CGI Argument Injection (CVE-2024-4577) for 2026-07-18

Jul 18, 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: 3China: 1Japan: 1
United States360.0%
China120.0%
Japan120.0%

IP Address : ASN : City/Provider

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

  • 134.209.115.97 : AS14061 DigitalOcean, LLC : North Bergen

  • 192.3.96.60 : AS36352 HostPapa : Buffalo

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

  • 43.165.170.19 : AS132203 Tencent Building, Kejizhongyi Avenue : Tokyo

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