CVE-2022-40847 : Vulnerability Insights and Analysis

A command injection vulnerability in Tenda AC1200 Router model W15Ev2 V15.11.0.10(1576) allows attackers to execute arbitrary commands on the server.

Understanding CVE-2022-40847

This article discusses the impact, technical details, and mitigation strategies for CVE-2022-40847.

What is CVE-2022-40847?

The CVE-2022-40847 vulnerability exists in the function formSetFixTools of Tenda AC1200 Router model W15Ev2 V15.11.0.10(1576), enabling attackers to execute unauthorized commands using the hostname parameter.

The Impact of CVE-2022-40847

This vulnerability could lead to unauthorized access to the server, enabling malicious actors to run arbitrary commands, compromise data integrity, and disrupt services.

Technical Details of CVE-2022-40847

The following details provide insight into the vulnerability:

Vulnerability Description

The vulnerability arises from improper input validation in the formSetFixTools function, allowing attackers to inject and execute malicious commands.

Affected Systems and Versions

The Tenda AC1200 Router model W15Ev2 V15.11.0.10(1576) is affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted input through the hostname parameter to execute arbitrary commands on the server.

Mitigation and Prevention

Protect your systems from CVE-2022-40847 using these strategies:

Immediate Steps to Take

Update the router firmware to the latest secure version.
Implement strong access controls and restrict access to the router interface.
Regularly monitor network traffic for suspicious activities.

Long-Term Security Practices

Conduct regular security audits to identify and address vulnerabilities.
Train staff on cybersecurity best practices to prevent social engineering attacks.

Patching and Updates

Stay informed about security updates released by Tenda for the AC1200 Router model W15Ev2 V15.11.0.10(1576) to patch the command injection vulnerability.