CVE-2022-30489 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2022-30489, a cross-site scripting (XSS) vulnerability found in WAVLINK WN535 G3 routers.

Understanding CVE-2022-30489

This CVE identifier refers to a specific security issue affecting the WAVLINK WN535 G3 router, allowing attackers to execute XSS attacks via the hostname parameter in the login.cgi script.

What is CVE-2022-30489?

The CVE-2022-30489 vulnerability involves a security flaw in the WAVLINK WN535 G3 router that enables malicious actors to inject and execute arbitrary scripts through a cross-site scripting attack vector.

The Impact of CVE-2022-30489

This vulnerability can lead to unauthorized access, data theft, session hijacking, and potentially complete control of the affected router by remote attackers. It poses a significant risk to the confidentiality and integrity of user information.

Technical Details of CVE-2022-30489

The technical aspects of CVE-2022-30489 include:

Vulnerability Description

The vulnerability resides in the hostname parameter of the /cgi-bin/login.cgi script in WAVLINK WN535 G3 routers, which does not properly sanitize user-supplied input, allowing for XSS attacks.

Affected Systems and Versions

All versions of the WAVLINK WN535 G3 router are affected by this vulnerability, making any device running this firmware version susceptible to exploitation.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the hostname parameter of the login.cgi script, potentially triggering the execution of unauthorized code within the context of a user's web browser.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-30489, consider the following steps:

Immediate Steps to Take

Disable remote management of the router if not required.
Regularly monitor network traffic for any suspicious activities.
Implement network segmentation to isolate the router from critical systems.

Long-Term Security Practices

Keep router firmware up to date with the latest patches and security updates.
Configure strong and unique passwords for router access.
Educate users about the risks of XSS attacks and safe browsing habits.

Patching and Updates

Check the vendor's official website for patched firmware releases addressing the CVE-2022-30489 vulnerability. Ensure timely application of these updates to protect your router from exploitation.