CVE-2021-45580 : What You Need to Know

Certain NETGEAR devices are affected by command injection by an authenticated user. This impacts various models such as RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850.

Understanding CVE-2021-45580

This CVE involves command injection vulnerability affecting certain NETGEAR devices.

What is CVE-2021-45580?

NETGEAR devices are susceptible to command injection by authenticated users, allowing them to execute arbitrary commands on affected devices.

The Impact of CVE-2021-45580

CVSS Base Score: 8.4 (High)
Severity: High
Attack Vector: Adjacent Network
Impact: High impact on confidentiality, integrity, and availability. Requires high privileges with scope changed and no user interaction.

Technical Details of CVE-2021-45580

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability allows authenticated users to inject commands into NETGEAR devices, potentially leading to unauthorized operations.

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 exploits the lack of proper input validation, enabling attackers to execute malicious commands post-authentication.

Mitigation and Prevention

Below are the necessary steps to mitigate and prevent exploitation of CVE-2021-45580.

Immediate Steps to Take

Update the affected NETGEAR devices to version 3.2.16.6 or later.
Monitor device logs for any suspicious activities.
Restrict access to the devices to authorized personnel only.

Long-Term Security Practices

Regularly update devices with the latest firmware and security patches.
Implement strong firewall rules and access controls to prevent unauthorized access.

Patching and Updates

It is crucial to apply the latest firmware updates provided by NETGEAR to address the command injection vulnerability effectively.