CVE-2022-45646 Explained : Impact and Mitigation

This article provides detailed information about CVE-2022-45646, a vulnerability found in the Tenda AC6V1.0 V15.03.05.19 router firmware that allows a buffer overflow via a specific parameter in a function.

Understanding CVE-2022-45646

CVE-2022-45646 is a security vulnerability identified in the Tenda AC6V1.0 V15.03.05.19 router firmware. The vulnerability arises due to a buffer overflow in the formSetClientState function triggered by the limitSpeedUp parameter.

What is CVE-2022-45646?

CVE-2022-45646 involves a buffer overflow issue in the Tenda AC6V1.0 V15.03.05.19 router firmware. The vulnerability allows an attacker to potentially execute arbitrary code or disrupt the normal operation of the device.

The Impact of CVE-2022-45646

The impact of this vulnerability could lead to unauthorized access, denial of service, or remote code execution on devices running the affected Tenda router firmware.

Technical Details of CVE-2022-45646

CVE-2022-45646 manifests as a buffer overflow that occurs when handling the limitSpeedUp parameter in the formSetClientState function.

Vulnerability Description

The vulnerability allows an attacker to send specially crafted input to the affected device, causing a buffer overflow and potentially enabling the execution of malicious code.

Affected Systems and Versions

The Tenda AC6V1.0 V15.03.05.19 router firmware is confirmed to be affected by CVE-2022-45646. Other versions or products may not be impacted.

Exploitation Mechanism

Exploiting CVE-2022-45646 requires crafting malicious input containing the specific parameter value to trigger the buffer overflow, resulting in potential code execution.

Mitigation and Prevention

As a precautionary measure, users and administrators can take immediate steps to mitigate the risks posed by CVE-2022-45646.

Immediate Steps to Take

It is recommended to apply security patches released by the vendor promptly and monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Implementing network segmentation, strong access controls, and regular security updates can enhance the overall security posture and prevent similar vulnerabilities in the future.

Patching and Updates

Vendors may release patches or updates to address CVE-2022-45646. It is crucial for users to stay informed about security advisories and apply patches as soon as they are available.