CVE-2022-40860 : What You Need to Know

This article provides details about CVE-2022-40860, a stack overflow vulnerability found in Tenda AC15 router V15.03.05.19 that can be exploited using the function formSetQosBand->FUN_0007dd20.

Understanding CVE-2022-40860

This section will cover the vulnerability, its impact, affected systems, exploitation method, and prevention strategies.

What is CVE-2022-40860?

The Tenda AC15 router V15.03.05.19 is affected by a stack overflow vulnerability in the function formSetQosBand->FUN_0007dd20 with the request /goform/SetNetControlList.

The Impact of CVE-2022-40860

The vulnerability allows attackers to potentially execute arbitrary code or crash the router, compromising network security and stability.

Technical Details of CVE-2022-40860

This section outlines the specifics of the vulnerability.

Vulnerability Description

The stack overflow vulnerability in the formSetQosBand->FUN_0007dd20 function of the Tenda AC15 router V15.03.05.19 can be triggered using the /goform/SetNetControlList request.

Affected Systems and Versions

The vulnerability affects Tenda AC15 router V15.03.05.19.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a crafted request to the vulnerable function, potentially leading to unauthorized code execution.

Mitigation and Prevention

To protect your system from CVE-2022-40860, follow these best practices.

Immediate Steps to Take

Update the router firmware to the latest patched version.
Restrict network access to the router to trusted devices only.

Long-Term Security Practices

Regularly monitor and apply security updates to all network devices.
Implement network segmentation to limit the impact of potential breaches.

Patching and Updates

Stay informed about security advisories from Tenda and apply patches promptly to address known vulnerabilities.