CVE-2021-28160 : What You Need to Know
Learn about CVE-2021-28160, a reflected XSS vulnerability in Wireless-N WiFi Repeater REV 1.0. Find out its impact, affected systems, and mitigation steps.
A Wireless-N WiFi Repeater REV 1.0 (28.08.06.1) is affected by a reflected XSS vulnerability due to unsanitized SSID value when displayed in the /repeater.html page ("Repeater Wizard" homepage section).
Understanding CVE-2021-28160
This section will delve into what CVE-2021-28160 entails.
What is CVE-2021-28160?
The Wireless-N WiFi Repeater REV 1.0 (28.08.06.1) has a vulnerability that allows an attacker to execute malicious scripts in a victim's browser through a reflected cross-site scripting (XSS) attack, exploiting the unsanitized SSID value.
The Impact of CVE-2021-28160
This vulnerability could be exploited by an attacker to steal sensitive information, perform actions on behalf of users, or deface web pages.
Technical Details of CVE-2021-28160
Exploring the technical aspects of CVE-2021-28160.
Vulnerability Description
The issue arises from the lack of sanitization of the SSID value, enabling attackers to inject malicious scripts that get executed in users' browsers.
Affected Systems and Versions
The affected system is the Wireless-N WiFi Repeater REV 1.0 with firmware version 28.08.06.1.
Exploitation Mechanism
Attackers can craft a malicious link containing the XSS payload and trick users into clicking on it. Once clicked, the script executes in the victim's browser within the context of the affected site.
Mitigation and Prevention
Understanding how to mitigate and prevent the exploitation of CVE-2021-28160.
Immediate Steps to Take
Users should avoid clicking on suspicious links, especially those leading to the affected repeater.html page. It is crucial to keep software and firmware up to date.
Long-Term Security Practices
Implement input validation mechanisms to sanitize user inputs and filter out potentially malicious scripts. Regular security audits and testing can also help identify and address vulnerabilities.
Patching and Updates
Vendors should release patches that address the XSS vulnerability by sanitizing user inputs, particularly the SSID value, to prevent script injection attacks.