PHP-CGI Argument Injection (CVE-2024-4577) for 2026-08-05

Aug 05, 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: 3Indonesia: 1United States: 1Hong Kong: 1
Singapore350.0%
Indonesia116.7%
United States116.7%
Hong Kong116.7%

IP Address : ASN : City/Provider

  • 103.63.24.43 : AS136052 PT Cloud Hosting Indonesia : Indonesia

  • 108.165.164.23 : AS210457 Kyonix Networks Limited : United States

  • 118.26.111.107 : AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED : Singapore

  • 152.32.175.45 : AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED : Hong Kong

  • 43.163.107.68 : AS132203 Tencent Building, Kejizhongyi Avenue : Singapore

  • 62.146.235.70 : AS141995 Contabo Asia Private Limited : Singapore

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