PHP-CGI Argument Injection (CVE-2024-4577) for 2026-08-12

Aug 12, 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: 2China: 1Finland: 1
United States250.0%
China125.0%
Finland125.0%

IP Address : ASN : City/Provider

  • 107.155.48.46 : AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED : United States

  • 192.255.141.70 : AS36352 HostPapa : United States

  • 81.70.174.133 : AS45090 Shenzhen Tencent Computer Systems Company Limited : Beijing

  • 83.143.112.38 : AS215439 Play2go International Limited : Helsinki

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