CVE-2021-29071 Explained : Impact and Mitigation

Certain NETGEAR devices are affected by command injection by an authenticated user. This vulnerability impacts various router models before specific firmware versions. It has a CVSS base score of 9.6, indicating a critical severity level with high impacts on confidentiality, integrity, and availability.

Understanding CVE-2021-29071

This section will cover the details of the CVE-2021-29071 vulnerability.

What is CVE-2021-29071?

CVE-2021-29071 is a command injection vulnerability present in NETGEAR routers. It allows an authenticated attacker to execute arbitrary commands on the affected devices, compromising their security.

The Impact of CVE-2021-29071

The vulnerability poses a critical threat as it enables an attacker to gain unauthorized access and potentially control the affected NETGEAR devices, leading to significant data breaches and network disruptions.

Technical Details of CVE-2021-29071

Let's delve into the technical aspects of CVE-2021-29071.

Vulnerability Description

The CVE-2021-29071 vulnerability allows authenticated users to inject commands into the affected NETGEAR routers. This could result in complete compromise of the device's security.

Affected Systems and Versions

NETGEAR routers including RBK852, RBK853, RBK854, RBR850, RBS850, RBR752, RBR753, RBR753S, RBR754, RBR750, and RBS750 are susceptible to this vulnerability before firmware version 3.2.17.12.

Exploitation Mechanism

Attacks exploiting CVE-2021-29071 require authentication, allowing malicious users to execute arbitrary commands and potentially take over the compromised devices.

Mitigation and Prevention

To secure your devices from CVE-2021-29071, follow these best practices:

Immediate Steps to Take

Update the firmware of affected NETGEAR routers to versions 3.2.17.12 or above.
Regularly monitor router activity for any suspicious behavior.

Long-Term Security Practices

Change default login credentials and use strong passwords.
Restrict network access to authorized users only.

Patching and Updates

Keep NETGEAR router firmware up to date to mitigate known vulnerabilities and ensure optimal security.