CVE-2021-45533 : Security Advisory and Response

Certain NETGEAR devices are affected by command injection vulnerability by an authenticated user, impacting multiple models and versions.

Understanding CVE-2021-45533

What is CVE-2021-45533?

NETGEAR devices are susceptible to command injection by authenticated users, affecting specific firmware versions across various models.

The Impact of CVE-2021-45533

The vulnerability possesses a high severity score due to its potential for significant availability, confidentiality, and integrity impact when exploited.

Technical Details of CVE-2021-45533

Vulnerability Description

Command injection vulnerability in certain NETGEAR devices

Affected Systems and Versions

EX6120 before 1.0.0.66
EX6130 before 1.0.0.46
EX7000 before 1.0.1.106
EX7500 before 1.0.1.76
EX3700 before 1.0.0.94
EX3800 before 1.0.0.94
RBR850 before 4.6.3.9
RBS850 before 4.6.3.9
RBK852 before 4.6.3.9

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Adjacent Network
Privileges Required: High
User Interaction: None
Scope: Changed

Mitigation and Prevention

Immediate Steps to Take

Update affected devices to the latest firmware
Monitor network traffic for any unusual activity

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks
Regularly review and update access controls
Conduct security awareness training for users

Patching and Updates

Ensure timely installation of firmware updates provided by NETGEAR to address the command injection vulnerability.