CVE-2021-43729 : Exploit Details and Defense Strategies

Pix-Link MiNi Router 28K.MiniRouter.20190211 contains a stored cross-site scripting (XSS) vulnerability due to an unsanitized Security Key parameter.

Understanding CVE-2021-43729

This CVE involves a stored XSS vulnerability in the Pix-Link MiNi Router.

What is CVE-2021-43729?

The CVE-2021-43729 vulnerability is a stored cross-site scripting (XSS) issue in the Pix-Link MiNi Router.

The Impact of CVE-2021-43729

Attackers can exploit this vulnerability to execute malicious scripts in the context of a user’s browser.
This could lead to various attacks such as stealing sensitive information, session hijacking, or defacing websites.

Technical Details of CVE-2021-43729

This section covers the technical aspects of the CVE in more detail.

Vulnerability Description

The stored XSS vulnerability in Pix-Link MiNi Router is caused by an unsanitized Security Key parameter.

Affected Systems and Versions

Product: Pix-Link MiNi Router 28K.MiniRouter.20190211
Vendor: Pix-Link
Version: All versions are affected

Exploitation Mechanism

Attackers can input malicious scripts into the Security Key parameter, which are then stored and executed in users’ browsers when accessed.

Mitigation and Prevention

It's crucial to take appropriate steps to mitigate the risks associated with CVE-2021-43729.

Immediate Steps to Take

Disable remote access to the router if not required.
Regularly monitor network traffic for any suspicious activities.

Long-Term Security Practices

Implement a web application firewall to filter and block XSS attacks.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Update the firmware of the Pix-Link MiNi Router to the latest version to patch the XSS vulnerability.