CVE-2021-38772 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2021-38772, a vulnerability found in Tenda AC10-1200 v15.03.06.23_EN router firmware that allows a buffer overflow via the list parameter in the fromSetIpMacBind function.

Understanding CVE-2021-38772

This section covers what CVE-2021-38772 entails, its impact, technical details, and mitigation strategies.

What is CVE-2021-38772?

CVE-2021-38772 is a vulnerability in Tenda AC10-1200 v15.03.06.23_EN that enables a buffer overflow attack through the 'list' parameter in the 'fromSetIpMacBind' function.

The Impact of CVE-2021-38772

The vulnerability could be exploited by attackers to execute arbitrary code, leading to unauthorized access, data breaches, or denial of service.

Technical Details of CVE-2021-38772

This section delves into the specifics of the vulnerability, affected systems, and how it can be exploited.

Vulnerability Description

The buffer overflow vulnerability in the Tenda AC10-1200 v15.03.06.23_EN firmware allows an attacker to overwrite memory in the 'fromSetIpMacBind' function.

Affected Systems and Versions

The issue affects Tenda AC10-1200 routers running firmware version v15.03.06.23_EN.

Exploitation Mechanism

Attackers can craft a malicious 'list' parameter payload to trigger the buffer overflow and potentially execute malicious code on the router.

Mitigation and Prevention

This section outlines steps to mitigate the CVE-2021-38772 vulnerability and safeguard affected systems.

Immediate Steps to Take

Users should update the router firmware to a patched version provided by the vendor and monitor for any unauthorized access or unusual network behavior.

Long-Term Security Practices

Implementing network segmentation, using strong passwords, and regularly updating firmware can enhance the security posture of network devices.

Patching and Updates

Regularly checking for firmware updates from Tenda and promptly applying patches can help prevent exploitation of known vulnerabilities.