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Description

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.

PUBLISHED Reserved 2025-11-14 | Published 2025-11-14 | Updated 2025-11-18 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

Default status
unknown

Any version
affected

Timeline

2021-05-03:SSD Advisory is published.

Credits

SSD Secure Disclosure coordinator

References

ssd-disclosure.com/...l-preauth-rce-and-password-disclosure/ exploit

ssd-disclosure.com/...l-preauth-rce-and-password-disclosure/ technical-description exploit

web.archive.org/...0211024224240/http://www.tg8security.com/ product

www.vulncheck.com/...l-unauthenticated-rce-via-runphpcmd-php third-party-advisory

cve.org (CVE-2021-4470)

nvd.nist.gov (CVE-2021-4470)

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