CVE-2021-45543 : Security Advisory and Response

Certain NETGEAR devices are affected by command injection vulnerabilities that can be exploited by authenticated users. This CVE affects multiple models including R8000, RAX200, R8000P, R7900P, RBR850, RBS850, and RBK852.

Understanding CVE-2021-45543

This CVE relates to command injection vulnerabilities in NETGEAR devices, allowing authenticated users to execute arbitrary commands.

What is CVE-2021-45543?

Command injection vulnerability in certain NETGEAR devices, potentially resulting in unauthorized command execution by authenticated users.

The Impact of CVE-2021-45543

The vulnerability has a high severity impact on confidentiality, integrity, and availability, with a CVSS base score of 8.4.

Technical Details of CVE-2021-45543

This section provides detailed technical information about the CVE.

Vulnerability Description

Command injection vulnerability in affected NETGEAR devices that allows authenticated attackers to execute arbitrary commands.

Affected Systems and Versions

R8000 before 1.0.4.74
RAX200 before 1.0.4.120
R8000P before 1.4.2.84
R7900P before 1.4.2.84
RBR850 before 3.2.17.12
RBS850 before 3.2.17.12
RBK852 before 3.2.17.12

Exploitation Mechanism

The vulnerability can be exploited by authenticated users to inject and execute malicious commands on the affected devices.

Mitigation and Prevention

Steps to mitigate the CVE and prevent potential attacks.

Immediate Steps to Take

Update the firmware to the latest patched versions provided by NETGEAR.
Restrict access to the affected devices to authorized and trusted users only.

Long-Term Security Practices

Regularly monitor for security advisories and updates from NETGEAR.
Implement strong password policies and multi-factor authentication.

Patching and Updates

Apply patches and updates promptly to address the command injection vulnerabilities in the affected devices.