CVE-2022-21201 Explained : Impact and Mitigation

This article provides an overview of CVE-2022-21201, a stack-based buffer overflow vulnerability in TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14, its impact, technical details, and mitigation steps.

Understanding CVE-2022-21201

CVE-2022-21201 is a high-severity vulnerability affecting TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14, discovered on August 1, 2022.

What is CVE-2022-21201?

A stack-based buffer overflow vulnerability exists in the confers ucloud_add_node_new functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. An attacker can exploit this by sending a specially-crafted network packet.

The Impact of CVE-2022-21201

The vulnerability has a CVSS base score of 8.8 (High), with high impacts on confidentiality, integrity, and availability. Attack complexity is low, and no user interaction or privileges are required.

Technical Details of CVE-2022-21201

The technical details of the vulnerability include:

Vulnerability Description

A stack-based buffer overflow in the confers ucloud_add_node_new functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14 allows for remote code execution.

Affected Systems and Versions

The vulnerability impacts TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14.

Exploitation Mechanism

Exploitation occurs via a specially-crafted network packet sent by an attacker.

Mitigation and Prevention

Taking immediate actions and implementing long-term security practices are essential to mitigate the risks posed by CVE-2022-21201.

Immediate Steps to Take

Disable remote access to vulnerable devices if possible.
Apply patches provided by TCL promptly.

Long-Term Security Practices

Regularly update firmware and security patches.
Implement network segmentation to limit the impact of potential future vulnerabilities.

Patching and Updates

Stay informed about security updates from TCL and apply them to ensure your systems are protected from known vulnerabilities.