CVE-2022-40072 : Vulnerability Insights and Analysis

This article provides details about CVE-2022-40072, a vulnerability found in Tenda AC21 V 16.03.08.15 that is susceptible to Buffer Overflow via /bin/httpd, function: setSmartPowerManagement.

Understanding CVE-2022-40072

This section delves into the specifics of the CVE-2022-40072 vulnerability in Tenda AC21 V 16.03.08.15.

What is CVE-2022-40072?

Tenda AC21 V 16.03.08.15 is found to have a vulnerability that allows Buffer Overflow via the /bin/httpd function, specifically in setSmartPowerManagement.

The Impact of CVE-2022-40072

The vulnerability in Tenda AC21 V 16.03.08.15 can potentially be exploited by attackers to execute arbitrary code or crash the device, leading to a denial of service.

Technical Details of CVE-2022-40072

This section outlines the technical aspects of the CVE-2022-40072 vulnerability.

Vulnerability Description

The vulnerability is a Buffer Overflow issue in Tenda AC21 V 16.03.08.15, triggered by the setSmartPowerManagement function in /bin/httpd.

Affected Systems and Versions

Tenda AC21 routers with version 16.03.08.15 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting specific requests to the /bin/httpd function, potentially leading to a system crash or arbitrary code execution.

Mitigation and Prevention

In light of CVE-2022-40072, it is crucial to take immediate action to safeguard vulnerable systems.

Immediate Steps to Take

Update the Tenda AC21 router firmware to the latest version provided by the vendor.
Implement network security measures to restrict access to the affected device.
Regularly monitor for any unusual network activity that may indicate exploitation.

Long-Term Security Practices

Stay informed about security updates and patches for all network devices.
Conduct regular security audits and vulnerability assessments on network infrastructure.
Educate users about best practices for secure device configuration and usage.

Patching and Updates

Ensure timely installation of patches and updates released by Tenda for the AC21 router to address the vulnerability.