CVE-2021-4470
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-14

Last updated on: 2025-11-18

Assigner: VulnCheck

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.
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Meta Information
Published
2025-11-14
Last Modified
2025-11-18
Generated
2026-06-16
AI Q&A
2025-11-15
EPSS Evaluated
2026-06-15
NVD
CVE-2021-4470
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
tg8 firewall 4.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

This vulnerability exists in the TG8 Firewall's runphpcmd.php endpoint, where the syscmd POST parameter is directly passed to a system command without any validation. This allows a remote, unauthenticated attacker to execute arbitrary operating system commands with root privileges, leading to full device compromise.

Impact Analysis

An attacker exploiting this vulnerability can execute arbitrary commands as root on the affected device remotely without authentication. This can lead to complete compromise of the device, potentially allowing the attacker to control the firewall, disrupt network security, access sensitive data, or use the device as a foothold for further attacks.

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