PHP-CGI Argument Injection (CVE-2024-4577) for 2026-07-27

Jul 27, 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

China: 1Indonesia: 1Thailand: 1United Kingdom: 1
China125.0%
Indonesia125.0%
Thailand125.0%
United Kingdom125.0%

IP Address : ASN : City/Provider

  • 117.164.191.217 : AS56045 China Mobile communications corporation : China

  • 163.7.1.156 : AS150436 Byteplus Pte. Ltd. : Indonesia

  • 61.19.69.203 : AS9931 National Telecom Public Company Limited : Thailand

  • 83.97.78.224 : AS215540 Global Connectivity Solutions Llp : United Kingdom

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