CVE-2021-45565 : What You Need to Know

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, and RBS850 before 3.2.16.6.

Understanding CVE-2021-45565

This CVE involves command injection in certain NETGEAR devices by authenticated users.

What is CVE-2021-45565?

CVE-2021-45565 is a vulnerability in NETGEAR devices that allows authenticated users to execute commands, potentially leading to unauthorized access or system compromise.

The Impact of CVE-2021-45565

The impact of this vulnerability is rated as HIGH, with confidentiality, integrity, and availability all being affected. The base score is 8.4, indicating a severe impact on affected systems.

Technical Details of CVE-2021-45565

This section covers the technical aspects of the CVE.

Vulnerability Description

Command injection vulnerability in certain NETGEAR devices

Affected Systems and Versions

RBK752 before 3.2.16.6
RBR750 before 3.2.16.6
RBS750 before 3.2.16.6
RBK852 before 3.2.16.6
RBR850 before 3.2.16.6
RBS850 before 3.2.16.6

Exploitation Mechanism

The vulnerability allows authenticated users to inject and execute arbitrary commands on the affected NETGEAR devices, potentially leading to system compromise.

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2021-45565

Immediate Steps to Take

Update affected devices to version 3.2.16.6 or later
Monitor device logs for suspicious activities
Restrict network access to vulnerable devices

Long-Term Security Practices

Implement network segmentation to isolate critical devices
Regularly update firmware and security patches
Conduct security training for users and administrators

Patching and Updates

Apply the latest firmware updates provided by NETGEAR to patch the vulnerability