CVE-2022-24020 : What You Need to Know

A buffer overflow vulnerability in TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14 allows an attacker to trigger a buffer overflow via a specially-crafted configuration value.

Understanding CVE-2022-24020

This CVE identifies a critical buffer overflow vulnerability impacting TCL's LinkHub Mesh Wi-Fi MS1G_00_01.00_14.

What is CVE-2022-24020?

CVE-2022-24020 is a buffer overflow vulnerability present in the GetValue functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. Attackers can exploit this issue by manipulating a configuration value.

The Impact of CVE-2022-24020

With a CVSS base score of 9.6 (Critical), this vulnerability can result in high impacts on confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2022-24020

The vulnerability is classified as CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow').

Vulnerability Description

A specially-crafted configuration value can trigger a buffer overflow within the network_check binary of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14.

Affected Systems and Versions

The TCL product 'LinkHub Mesh Wifi' version MS1G_00_01.00_14 is affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by modifying a configuration value, leading to a buffer overflow.

Mitigation and Prevention

To address CVE-2022-24020, immediate action is required to mitigate the risks posed by this critical vulnerability.

Immediate Steps to Take

Update TCL LinkHub Mesh Wi-Fi to a non-vulnerable version if available.
Monitor network traffic for any suspicious activity.
Apply firewall rules to restrict access to vulnerable devices.

Long-Term Security Practices

Regularly update firmware and software to patches released by TCL.
Conduct periodic security assessments and penetration testing.

Patching and Updates

Stay informed about security advisories from TCL and promptly apply recommended patches and updates.