CVE-2022-40718 : Security Advisory and Response

A critical vulnerability has been identified in D-Link DIR-2150 4.0.1 routers, designated as CVE-2022-40718, that allows attackers to execute arbitrary code without authentication.

Understanding CVE-2022-40718

This section provides insights into the nature of the vulnerability and its potential impact.

What is CVE-2022-40718?

The vulnerability in the anweb service of D-Link DIR-2150 4.0.1 routers allows network-adjacent attackers to execute code as root due to improper validation of user-supplied data.

The Impact of CVE-2022-40718

With a CVSS base score of 8.8, this high-severity vulnerability could lead to unauthorized code execution, posing a significant risk to affected systems.

Technical Details of CVE-2022-40718

Explore the specific technical aspects of the CVE-2022-40718 vulnerability.

Vulnerability Description

The flaw arises from the lack of validation of user input length, resulting in a stack-based buffer overflow that enables attackers to run arbitrary code.

Affected Systems and Versions

Only D-Link DIR-2150 routers running version 4.0.1 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability through the anweb service listening on TCP ports 80 and 443 without the need for authentication.

Mitigation and Prevention

Discover the steps to mitigate the risks associated with CVE-2022-40718.

Immediate Steps to Take

Affected users should promptly apply security patches provided by D-Link to prevent exploitation of this critical vulnerability.

Long-Term Security Practices

Implementing network segmentation, strong access controls, and regular security updates can enhance the overall security posture against similar threats.

Patching and Updates

Stay informed about security advisories and updates from D-Link to address vulnerabilities promptly.