CVE-2021-46227 : Vulnerability Insights and Analysis

D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a command injection vulnerability in the function proxy_client.asp, allowing attackers to execute arbitrary commands.

Understanding CVE-2021-46227

This CVE involves a command injection vulnerability in a specific function of the D-Link device, posing a risk of unauthorized command execution by malicious actors.

What is CVE-2021-46227?

The vulnerability in D-Link DI-7200GV2.E1 v21.04.09E1 enables attackers to run unauthorized commands through certain parameters, potentially leading to a security breach.

The Impact of CVE-2021-46227

The vulnerability allows threat actors to execute arbitrary commands using specific parameters, compromising the security and integrity of the affected device.

Technical Details of CVE-2021-46227

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability resides in the proxy_client.asp function, enabling attackers to execute unauthorized commands via specific parameters.

Affected Systems and Versions

Product: D-Link DI-7200GV2.E1
Version: v21.04.09E1

Exploitation Mechanism

The exploitation occurs through manipulation of the proxy_srv, proxy_srvport, proxy_lanip, and proxy_lanport parameters, allowing attackers to inject and execute commands.

Mitigation and Prevention

Effective mitigation strategies are crucial to prevent exploitation of the vulnerability.

Immediate Steps to Take

Disable remote access if not essential
Monitor network traffic for suspicious activities
Apply vendor-recommended security patches

Long-Term Security Practices

Regularly update firmware and software
Implement network segmentation for enhanced security
Conduct security audits and penetration testing periodically

Patching and Updates

Ensure timely installation of patches and updates released by D-Link to address the vulnerability.