CVE-2022-44163 : Security Advisory and Response

Tenda AC21 V16.03.08.15 is vulnerable to Buffer Overflow via function formSetMacFilterCfg.

Understanding CVE-2022-44163

This article provides insights into CVE-2022-44163, detailing its impact, technical aspects, and mitigation strategies.

What is CVE-2022-44163?

CVE-2022-44163 highlights a vulnerability in Tenda AC21 V16.03.08.15 that allows attackers to trigger a Buffer Overflow through the function formSetMacFilterCfg.

The Impact of CVE-2022-44163

The vulnerability can be exploited by threat actors to execute arbitrary code or crash the affected system, potentially leading to a denial of service (DoS) condition.

Technical Details of CVE-2022-44163

Let's delve into the specifics of CVE-2022-44163 to understand its vulnerability, affected systems, and exploitation mechanism.

Vulnerability Description

The Buffer Overflow vulnerability in Tenda AC21 V16.03.08.15 arises from inadequate input validation in the function formSetMacFilterCfg, allowing malicious actors to overwrite the memory buffer beyond its allocated size.

Affected Systems and Versions

All devices running Tenda AC21 V16.03.08.15 are susceptible to this vulnerability, regardless of the vendor or product version.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted input to the function formSetMacFilterCfg, causing a buffer overflow and potentially executing arbitrary code on the target system.

Mitigation and Prevention

Learn about the immediate steps to secure your systems against CVE-2022-44163 and establish long-term security practices.

Immediate Steps to Take

It is recommended to apply vendor-supplied patches promptly, restrict network access to vulnerable devices, and monitor for any malicious activity.

Long-Term Security Practices

Implement robust input validation mechanisms, conduct regular security assessments, and educate users on safe browsing habits and device usage practices.

Patching and Updates

Regularly check for security updates from Tenda for your AC21 V16.03.08.15 devices, ensuring that all patches are applied promptly to mitigate the risk of exploitation.