CVE-2022-24156 Explained : Impact and Mitigation

This article provides insights into CVE-2022-24156, a vulnerability found in Tenda AX3 v16.03.12.10_CN that can lead to Denial of Service attacks.

Understanding CVE-2022-24156

CVE-2022-24156 is a stack overflow vulnerability discovered in Tenda AX3 v16.03.12.10_CN, specifically in the function formSetVirtualSer, allowing attackers to trigger a Denial of Service (DoS) by exploiting the list parameter.

What is CVE-2022-24156?

CVE-2022-24156 refers to a critical stack overflow vulnerability in Tenda AX3 v16.03.12.10_CN, enabling threat actors to execute a Denial of Service attack through malicious manipulation of the list parameter.

The Impact of CVE-2022-24156

The presence of this vulnerability poses a significant risk as attackers can exploit it to disrupt the normal operation of the affected device, potentially causing service unavailability.

Technical Details of CVE-2022-24156

Here are some technical details related to CVE-2022-24156:

Vulnerability Description

The vulnerability arises due to a stack overflow in the formSetVirtualSer function within Tenda AX3 v16.03.12.10_CN, which could be abused by attackers to launch DoS attacks.

Affected Systems and Versions

Tenda AX3 v16.03.12.10_CN is confirmed to be impacted by this vulnerability, with other specific versions possibly affected as well.

Exploitation Mechanism

Exploiting CVE-2022-24156 involves manipulating the list parameter to trigger a stack overflow, ultimately leading to a Denial of Service scenario.

Mitigation and Prevention

To safeguard against CVE-2022-24156, consider implementing the following measures:

Immediate Steps to Take

Update the firmware of Tenda AX3 to a patched version provided by the vendor.
Monitor network traffic for any suspicious activity that may indicate exploitation attempts.
Apply firewall rules to restrict unauthorized access to vulnerable services.

Long-Term Security Practices

Regularly check for security updates and patches from Tenda to address known vulnerabilities.
Conduct security assessments and penetration testing to uncover any potential weaknesses in your network.
Educate users and administrators about best practices for network security to prevent future exploitation.

Patching and Updates

Keep a close eye on Tenda's security advisories and promptly apply any released patches to mitigate the risk of CVE-2022-24156.