CVE-2021-45567 : Vulnerability Insights and Analysis

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-2021-45567

This CVE involves command injection vulnerability in certain NETGEAR devices when accessed by an authenticated user.

What is CVE-2021-45567?

Command injection vulnerability in specific NETGEAR devices that allows an authenticated user to execute arbitrary commands.

The Impact of CVE-2021-45567

CVSS v3.1 Base Score: 8.4 (High)
Attack Vector: ADJACENT_NETWORK
Attack Complexity: LOW
Privileges Required: HIGH
User Interaction: NONE
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH
Scope: CHANGED

Technical Details of CVE-2021-45567

This section provides detailed technical information about the vulnerability.

Vulnerability Description

Command injection vulnerability allows authenticated users to run arbitrary commands on affected 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

An authenticated user can exploit the vulnerability by injecting malicious commands to gain unauthorized access or disrupt system operations.

Mitigation and Prevention

Protect your systems and data from CVE-2021-45567 with the following steps:

Immediate Steps to Take

Update the affected NETGEAR devices to version 3.2.16.6 or later.
Limit access to vulnerable devices to authorized personnel only.

Long-Term Security Practices

Conduct regular security audits and vulnerability assessments.
Educate users about safe computing practices to prevent unauthorized access.

Patching and Updates

Regularly check for security updates from NETGEAR and promptly apply patches to address known vulnerabilities.