CVE-2022-36158 : Security Advisory and Response

A vulnerability has been identified in Contec FXA3200 version 1.13.00 and earlier versions, leading to insecure permissions in the Wireless LAN Manager interface. This flaw enables malicious actors to execute Linux commands with root privilege through a hidden web page.

Understanding CVE-2022-36158

This section delves into the specifics of the CVE-2022-36158 vulnerability.

What is CVE-2022-36158?

The CVE-2022-36158 vulnerability exists in Contec FXA3200 version 1.13.00 and below, allowing attackers to run Linux commands with root privileges using a concealed web page (/usr/www/ja/mnt_cmd.cgi).

The Impact of CVE-2022-36158

The impact of this vulnerability is severe as it grants unauthorized individuals the ability to execute privileged commands on affected systems.

Technical Details of CVE-2022-36158

This section provides technical insights into CVE-2022-36158.

Vulnerability Description

The vulnerability arises from insecure permissions in the Wireless LAN Manager interface, enabling the execution of Linux commands with root privileges.

Affected Systems and Versions

Contec FXA3200 version 1.13.00 and earlier versions are affected by this vulnerability.

Exploitation Mechanism

Malicious actors can exploit this vulnerability through a hidden web page (/usr/www/ja/mnt_cmd.cgi) to execute Linux commands with root privilege.

Mitigation and Prevention

Discover how to mitigate the risks associated with CVE-2022-36158.

Immediate Steps to Take

Immediately update Contec FXA3200 to a secure version to prevent exploitation of this vulnerability.

Long-Term Security Practices

Implement stringent access controls and regular security audits to safeguard against similar vulnerabilities.

Patching and Updates

Regularly apply security patches and updates provided by the vendor to address known vulnerabilities.