CVE-2021-45574 : Exploit Details and Defense Strategies

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-2021-45574

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

What is CVE-2021-45574?

CVE-2021-45574 is a vulnerability that allows an authenticated user to execute commands on affected NETGEAR devices.

The Impact of CVE-2021-45574

CVSS Base Score: 8.4 (High)
Attack Vector: Adjacent Network
Attack Complexity: Low
Privileges Required: High
User Interaction: None
Scope: Changed
Confidentiality, Integrity, and Availability Impact: High
This vulnerability poses a significant risk to the confidentiality, integrity, and availability of the affected devices.

Technical Details of CVE-2021-45574

This section provides technical details of the CVE.

Vulnerability Description

Command injection vulnerability allows authenticated users to execute arbitrary commands.

Affected Systems and Versions

RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850 before 3.2.16.6.

Exploitation Mechanism

Authenticated users can exploit this vulnerability to execute malicious commands on the affected devices.

Mitigation and Prevention

Protecting against CVE-2021-45574 is crucial for maintaining the security of NETGEAR devices.

Immediate Steps to Take

Update the affected devices to version 3.2.16.6 or above.
Restrict access to vulnerable devices.

Long-Term Security Practices

Regularly monitor and update device firmware.
Implement strong access controls and authentication mechanisms.

Patching and Updates

Ensure timely installation of security patches to prevent exploitation of known vulnerabilities.