CVE-2022-35522 : Vulnerability Insights and Analysis

A command injection vulnerability has been identified in WAVLINK routers including models WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3. This CVE allows attackers to execute arbitrary commands on the affected systems.

Understanding CVE-2022-35522

This section provides an overview of the CVE-2022-35522 vulnerability in WAVLINK routers.

What is CVE-2022-35522?

The WAVLINK routers mentioned above are susceptible to a command injection exploit due to the lack of parameter filtering in the 'adm.cgi' page. Specifically, parameters like ppp_username, ppp_passwd, rwan_gateway, rwan_mask, and rwan_ip are not properly filtered, enabling malicious actors to inject commands via the '/wan.shtml' page.

The Impact of CVE-2022-35522

The presence of this vulnerability allows threat actors to remotely execute arbitrary commands on the affected WAVLINK routers. This could lead to unauthorized access, data breaches, and other malicious activities.

Technical Details of CVE-2022-35522

In this section, we delve into the technical aspects of CVE-2022-35522 to better understand the vulnerability and its implications.

Vulnerability Description

The lack of input validation and filtering on critical parameters in the 'adm.cgi' page of WAVLINK routers facilitates command injection attacks, posing a significant security risk.

Affected Systems and Versions

The vulnerability affects WAVLINK router models WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3. Devices running firmware versions that utilize the vulnerable 'adm.cgi' page are at risk.

Exploitation Mechanism

By manipulating the unfiltered parameters in the '/wan.shtml' page, threat actors can inject and execute malicious commands on the targeted WAVLINK routers.

Mitigation and Prevention

Protecting your systems from CVE-2022-35522 requires immediate action and the implementation of robust security measures.

Immediate Steps to Take

Ensure that your WAVLINK router firmware is updated to the latest version that patches the command injection vulnerability. Additionally, restrict access to vulnerable pages and apply strong password policies.

Long-Term Security Practices

Establish regular security audits and penetration testing to identify and address potential vulnerabilities in your network infrastructure. Educate users about safe browsing practices and the importance of cybersecurity hygiene.

Patching and Updates

Stay informed about security advisories from WAVLINK and promptly apply any patches or updates released to mitigate known vulnerabilities and enhance the security posture of your network.