CVE-2021-46109 : Exploit Details and Defense Strategies

This CVE-2021-46109 article provides details about an Invalid input sanitizing vulnerability leading to reflected Cross Site Scripting (XSS) in ASUS RT-AC52U_B1 3.0.0.4.380.10931, potentially resulting in a user session hijack.

Understanding CVE-2021-46109

This section delves into the impact and technical details of CVE-2021-46109.

What is CVE-2021-46109?

The CVE-2021-46109 vulnerability originates from inadequate input sanitization allowing XSS attacks in ASUS RT-AC52U_B1 3.0.0.4.380.10931, which can lead to session hijacking.

The Impact of CVE-2021-46109

The vulnerability can be exploited to execute XSS attacks, potentially enabling threat actors to hijack user sessions.

Technical Details of CVE-2021-46109

This section covers essential technical aspects of the vulnerability.

Vulnerability Description

The vulnerability arises from improper input sanitization procedures, facilitating the execution of reflected XSS attacks.

Affected Systems and Versions

Affected Product: ASUS RT-AC52U_B1
Affected Version: 3.0.0.4.380.10931

Exploitation Mechanism

Attackers can inject malicious scripts via user inputs, causing the browser to execute them in the context of the victim's session.

Mitigation and Prevention

Here are the necessary steps to mitigate and prevent exploitation of CVE-2021-46109.

Immediate Steps to Take

Implement input validation mechanisms to filter out malicious scripts.
Regularly monitor and review user session activities for anomalies.
Update firmware to the latest version that addresses the vulnerability.

Long-Term Security Practices

Conduct regular security training for developers on secure coding practices.
Employ web application firewalls (WAFs) to detect and mitigate XSS attacks.
Perform security assessments and audits periodically to identify and rectify vulnerabilities.

Patching and Updates

Ensure timely application of security patches and firmware updates to address known vulnerabilities.