CVE-2022-26673 : Security Advisory and Response

A stored Cross-Site Scripting (XSS) vulnerability has been identified in ASUS RT-AX88U routers, allowing an attacker to inject JavaScript via the HTTP header and execute malicious scripts.

Understanding CVE-2022-26673

This CVE identifies a security flaw in the ASUS RT-AX88U router that enables an attacker to perform stored XSS attacks by injecting malicious JavaScript code.

What is CVE-2022-26673?

ASUS RT-AX88U routers lack proper filtering for special characters in the HTTP header, permitting a remote adversary with general user privileges to insert JavaScript and execute stored XSS attacks.

The Impact of CVE-2022-26673

This vulnerability could lead to unauthorized access to sensitive data, manipulation of web content, and potential compromise of user privacy through malicious scripts.

Technical Details of CVE-2022-26673

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in the ASUS RT-AX88U router facilitates the injection of JavaScript code, enabling stored XSS attacks by an attacker with general user privileges.

Affected Systems and Versions

The vulnerability affects ASUS RT-AX88U devices with firmware versions earlier than 3.0.0.4.386.4606.

Exploitation Mechanism

Remote threat actors can exploit this vulnerability by injecting crafted HTTP headers containing malicious JavaScript code.

Mitigation and Prevention

Implementing security measures is crucial to protect against this vulnerability.

Immediate Steps to Take

Users are advised to update their RT-AX88U router firmware to version 3.0.0.4.386.46065 to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly check for firmware updates and security advisories from ASUS to stay protected against potential vulnerabilities.

Patching and Updates

Stay informed about security patches and promptly apply updates to ensure that your router is guarded against known vulnerabilities.