CVE-2022-35537 : Vulnerability Insights and Analysis

A command injection vulnerability has been discovered in WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3 wireless routers, specifically in the wireless.cgi page. Lack of parameter filtering on mac_5g and Newname parameters can be exploited, leading to command injection.

Understanding CVE-2022-35537

This CVE refers to a security flaw in certain WAVLINK wireless routers that allows attackers to execute commands through specific parameters.

What is CVE-2022-35537?

The vulnerability in WAVLINK routers enables threat actors to inject malicious commands via the mac_5g and Newname parameters on the /wifi_mesh.shtml page.

The Impact of CVE-2022-35537

Exploitation of this vulnerability could result in unauthorized command execution on the affected routers, potentially leading to further network compromise.

Technical Details of CVE-2022-35537

This section provides more insights into the vulnerability's description, affected systems, and exploitation mechanism.

Vulnerability Description

The issue stems from the lack of input validation on the mac_5g and Newname parameters in the wireless.cgi page, allowing attackers to inject and execute arbitrary commands.

Affected Systems and Versions

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3 wireless routers are affected by this vulnerability.

Exploitation Mechanism

By manipulating the mac_5g and Newname parameters in the /wifi_mesh.shtml page, threat actors can inject and execute unauthorized commands on the vulnerable routers.

Mitigation and Prevention

To protect systems from potential exploitation, immediate action and long-term security practices are essential.

Immediate Steps to Take

Disable remote administration if not required.
Regularly monitor network traffic and logs for any suspicious activity.

Long-Term Security Practices

Keep router firmware up to date to patch known vulnerabilities.
Implement strong network segmentation and access controls.

Patching and Updates

Check for firmware updates from the vendor regularly and apply patches promptly to mitigate the risk of command injections.