CVE-2021-43702 : Vulnerability Insights and Analysis
Learn about CVE-2021-43702 affecting ASUS RT-A88U routers. Explore the impact, technical details, and mitigation steps to prevent Cross Site Scripting attacks on vulnerable devices.
ASUS RT-A88U 3.0.0.4.386_45898 is vulnerable to Cross Site Scripting (XSS) due to incorrect sanitization of WiFi logs in the admin panel.
Understanding CVE-2021-43702
What is CVE-2021-43702?
CVE-2021-43702 is a vulnerability in ASUS RT-A88U routers that allows attackers to execute stored XSS by changing the SSID with a custom payload.
The Impact of CVE-2021-43702
This vulnerability could lead to unauthorized access to the router, compromising the security and privacy of the device and the network it is connected to.
Technical Details of CVE-2021-43702
Vulnerability Description
The vulnerability in ASUS RT-A88U 3.0.0.4.386_45898 stems from the lack of proper sanitization of WiFi logs, enabling attackers to inject malicious scripts.
Affected Systems and Versions
- Product: ASUS RT-A88U
- Version: 3.0.0.4.386_45898
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the SSID of the router with a crafted payload, allowing them to execute stored XSS attacks on the device.
Mitigation and Prevention
Immediate Steps to Take
- Update the router firmware to the latest version provided by ASUS.
- Change default login credentials and regularly update them.
Long-Term Security Practices
- Regularly monitor router logs for suspicious activities.
- Implement network segmentation to isolate critical devices.
Patching and Updates
Apply all security patches released by ASUS promptly to mitigate the risk of XSS attacks.