CVE-2021-20173 : Security Advisory and Response

This article provides insights into CVE-2021-20173, a command injection vulnerability found in Netgear Nighthawk R6700 version 1.0.4.120 that could be exploited through the device's update functionality via the SOAP interface.

Understanding CVE-2021-20173

In this section, we will delve into the details of the CVE-2021-20173 vulnerability.

What is CVE-2021-20173?

Netgear Nighthawk R6700 version 1.0.4.120 is impacted by a command injection flaw in its update mechanism, making it susceptible to command injection attacks when a system update check is initiated through the SOAP interface.

The Impact of CVE-2021-20173

The vulnerability allows threat actors to execute arbitrary commands on the affected device, leading to potential unauthorized access, data theft, or further system compromise.

Technical Details of CVE-2021-20173

This section uncovers the technical aspects of the CVE-2021-20173 vulnerability.

Vulnerability Description

The vulnerability in Netgear Nighthawk R6700 version 1.0.4.120 permits attackers to inject malicious commands into the device upon triggering a system update check via preconfigured values on the SOAP interface.

Affected Systems and Versions

The affected product is the Netgear Nighthawk R6700 with version 1.0.4.120, making devices running this version vulnerable to command injection exploitation.

Exploitation Mechanism

By manipulating the system update check process through the SOAP interface, threat actors can inject unauthorized commands into the device, compromising its security.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-20173 and safeguard your systems.

Immediate Steps to Take

Users are advised to update their Netgear Nighthawk R6700 to a secure version, avoid untrusted network access, and monitor for any suspicious activities.

Long-Term Security Practices

Implement network segmentation, strong access controls, and regular security audits to enhance overall security posture.

Patching and Updates

Stay informed about security patches and updates released by Netgear for the Nighthawk R6700 series to address the command injection vulnerability and other security issues.