CVE-2022-0650 : What You Need to Know

This CVE article provides detailed information about a vulnerability that allows network-adjacent attackers to execute arbitrary code on TP-Link TL-WR940N routers.

Understanding CVE-2022-0650

This section explores the nature of the CVE-2022-0650 vulnerability in TP-Link TL-WR940N routers.

What is CVE-2022-0650?

CVE-2022-0650 allows network-adjacent attackers to run arbitrary code on affected TP-Link TL-WR940N routers, exploiting a flaw in the httpd service.

The Impact of CVE-2022-0650

This vulnerability requires authentication and can be exploited to execute code in the context of root, posing a high risk to confidentiality, integrity, and availability.

Technical Details of CVE-2022-0650

This section delves into the technical aspects of CVE-2022-0650 in TP-Link TL-WR940N routers.

Vulnerability Description

The vulnerability stems from inadequate validation of user-supplied data length before copying it to a fixed-length stack-based buffer, enabling attackers to execute code.

Affected Systems and Versions

TP-Link TL-WR940N routers running version 3.20.1 Build 200316 Rel.34392n (5553) are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability over the network via the httpd service on TCP port 80, requiring authentication for successful exploitation.

Mitigation and Prevention

Learn how to address and prevent the CVE-2022-0650 vulnerability in TP-Link TL-WR940N routers.

Immediate Steps to Take

Immediately update the affected routers to the latest firmware and ensure secure configuration practices are in place.

Long-Term Security Practices

Regularly monitor and update router firmware, implement network segmentation, and follow security best practices to enhance overall cybersecurity.

Patching and Updates

Stay informed about security updates from TP-Link and promptly apply patches to mitigate the CVE-2022-0650 vulnerability.