PHP-CGI Argument Injection (CVE-2024-4577) for 2026-07-14

Jul 14, 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: 5Singapore: 1
China583.3%
Singapore116.7%

IP Address : ASN : City/Provider

  • 113.101.246.99 : AS4134 Chinanet : China

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

  • 146.190.93.212 : AS14061 DigitalOcean, LLC : Singapore

  • 159.75.127.4 : AS45090 Shenzhen Tencent Computer Systems Company Limited : Guangzhou

  • 180.76.172.156 : AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd. : China

  • 8.136.189.162 : AS37963 Hangzhou Alibaba Advertising Co.,Ltd. : Hangzhou

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