摘要: TG8 Firewall Unauthenticated RCE via runphpcmd.php 严重性: CRITICAL 日期: November 14, 2025 影响: - TG8 Firewall firmware - An affected version range remains undefined - This product appears to no longer be supported CVE: CVE-2021-4470 CWE: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CVSS: 9.3 CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N 参考资料: - SSD Secure Disclosure - Archived TG8 Product Site 致谢: Independent Security Researcher via SSD Secure Disclosure 描述: TG8 Firewall contains a pre-authentication remote code execution vulnerability in the runphpcmd.php endpoint. The syscmd POST parameter is passed directly to a system command without validation and executed with root privileges. A remote, unauthenticated attacker can supply crafted values to execute arbitrary operating system commands as root, resulting in full device compromise.