PHP-CGI Argument Injection (CVE-2024-4577) for 2026-09-07
Sep 07, 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
MITRE ATT&CK
Tactic: Initial Access (TA0001)
Technique: T1190 — Exploit Public-Facing Application
Observed URIs
Attackers by Country
| Vietnam | 1 | 25.0% |
| Singapore | 1 | 25.0% |
| United Kingdom | 1 | 25.0% |
| Hong Kong | 1 | 25.0% |
IP Address : ASN : City/Provider
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103.78.2.252 : AS150895 EZ TECHNOLOGY COMPANY LIMITED : Vietnam
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139.99.125.80 : AS16276 OVH SAS : Singapore
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149.102.130.252 : AS51167 Contabo GmbH : Portsmouth
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34.92.65.156 : AS396982 Google LLC : Hong Kong