CVE-2021-3186 Explained : Impact and Mitigation

A Stored Cross-site scripting (XSS) vulnerability in Tenda AC5 AC1200 version V15.03.06.47_multi allows remote attackers to inject arbitrary web script or HTML via the Wifi Name parameter.

Understanding CVE-2021-3186

This CVE refers to a specific vulnerability found in the Wifi Settings of Tenda AC5 AC1200 routers that enables attackers to inject malicious web scripts or HTML.

What is CVE-2021-3186?

CVE-2021-3186 is a Stored Cross-site scripting (XSS) vulnerability that affects Tenda AC5 AC1200 version V15.03.06.47_multi. It allows remote attackers to manipulate the Wifi Name parameter to execute harmful scripts on the device.

The Impact of CVE-2021-3186

This vulnerability can be exploited by malicious actors to launch Cross-site scripting (XSS) attacks, potentially leading to unauthorized access, data theft, and other security breaches on affected devices.

Technical Details of CVE-2021-3186

Investigate further into the specifics of the vulnerability in order to understand how it can affect your systems.

Vulnerability Description

The vulnerability lies in the /main.html Wifi Settings of Tenda AC5 AC1200 version V15.03.06.47_multi, permitting attackers to inject arbitrary web script or HTML through the Wifi Name parameter.

Affected Systems and Versions

Tenda AC5 AC1200 version V15.03.06.47_multi is confirmed to be affected by this vulnerability. Users of this specific version should be cautious and take appropriate actions to mitigate risks.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by manipulating the Wifi Name parameter with malicious scripts, enabling them to execute unauthorized code on the target device.

Mitigation and Prevention

Take necessary steps to protect your systems from potential exploitation and secure your network environment.

Immediate Steps to Take

It is recommended to update the firmware of Tenda AC5 AC1200 routers to the latest version to patch the vulnerability and prevent any malicious exploitation.

Long-Term Security Practices

Implement robust security measures, such as regular security audits, network monitoring, and user awareness training, to enhance the overall security posture of your network.

Patching and Updates

Stay informed about security updates and patches released by the vendor. Regularly apply patches and updates to address known vulnerabilities and secure your network environment.