CVE-2022-35535 : What You Need to Know

This article provides detailed information about CVE-2022-35535, highlighting the vulnerability in WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 wireless.cgi that leads to command injection in the /wifi_mesh.shtml page.

Understanding CVE-2022-35535

CVE-2022-35535 exposes a security flaw in WAVLINK wireless routers, allowing an attacker to execute unauthorized commands through the macAddr parameter in the wireless.cgi script.

What is CVE-2022-35535?

The vulnerability in WAVLINK routers, specifically models WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3, permits command injection due to lack of input validation on the macAddr parameter in the /wifi_mesh.shtml page.

The Impact of CVE-2022-35535

Exploitation of this vulnerability could allow threat actors to execute arbitrary commands on the affected routers, potentially leading to unauthorized access, data theft, or further network compromise.

Technical Details of CVE-2022-35535

The following details shed light on the technical aspects of CVE-2022-35535.

Vulnerability Description

The vulnerability arises from the absence of input validation on the macAddr parameter in the wireless.cgi script, enabling attackers to inject malicious commands through the /wifi_mesh.shtml page.

Affected Systems and Versions

WAVLINK routers models WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 with the wireless.cgi script are susceptible to this command injection vulnerability.

Exploitation Mechanism

By sending specially crafted input to the macAddr parameter in the /wifi_mesh.shtml page, threat actors can execute arbitrary commands on the affected WAVLINK routers.

Mitigation and Prevention

Understanding how to mitigate the risks associated with CVE-2022-35535 is crucial for maintaining a secure network environment.

Immediate Steps to Take

Apply security patches provided by WAVLINK to address the vulnerability promptly.
Consider restricting access to vulnerable routers from untrusted networks.

Long-Term Security Practices

Regularly update firmware on networking devices to ensure the latest security enhancements are in place.
Implement network segmentation to limit the impact of potential security breaches.

Patching and Updates

Stay informed about security advisories from WAVLINK and promptly apply patches to ensure protection against known vulnerabilities.