CVE-2022-45643 : Security Advisory and Response

A buffer overflow vulnerability was discovered in Tenda AC6V1.0 V15.03.05.19, specifically in the addWifiMacFilter function, via the deviceId parameter.

Understanding CVE-2022-45643

This CVE relates to a buffer overflow issue in Tenda AC6V1.0 V15.03.05.19, presenting a security risk through a specific parameter.

What is CVE-2022-45643?

CVE-2022-45643 involves a buffer overflow vulnerability in Tenda AC6V1.0 V15.03.05.19 due to improper handling of the deviceId parameter, potentially leading to security breaches.

The Impact of CVE-2022-45643

The vulnerability in the addWifiMacFilter function could allow threat actors to execute arbitrary code, disrupt services, or compromise data on affected systems.

Technical Details of CVE-2022-45643

In-depth technical insights into the vulnerability, affected systems, and exploitation mechanism.

Vulnerability Description

The buffer overflow occurs when processing the deviceId parameter in the addWifiMacFilter function, enabling attackers to overwrite memory beyond the buffer's boundary.

Affected Systems and Versions

The issue impacts Tenda AC6V1.0 V15.03.05.19, and potentially other versions relying on the addWifiMacFilter function.

Exploitation Mechanism

Attackers can exploit the buffer overflow by crafting malicious input for the deviceId parameter, allowing them to trigger the vulnerability.

Mitigation and Prevention

Actions to mitigate the risks posed by CVE-2022-45643 and prevent exploitation.

Immediate Steps to Take

Apply vendor patches promptly, restrict network access to vulnerable devices, and monitor for any suspicious activities.

Long-Term Security Practices

Implement network segmentation, regularly update firmware, conduct security assessments, and educate users on safe practices.

Patching and Updates

Regularly check for security updates from Tenda, apply patches, and follow best practices to enhance system security.