CVE-2021-45584 : Exploit Details and Defense Strategies

Certain NETGEAR devices are affected by command injection vulnerability allowing authenticated users to exploit it. This impacts several models including RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850.

Understanding CVE-2021-45584

This CVE identifies a command injection vulnerability affecting various NETGEAR devices, potentially leading to unauthorized access.

What is CVE-2021-45584?

Command injection vulnerability in certain NETGEAR devices
Can be exploited by authenticated users
Impacts models like RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850

The Impact of CVE-2021-45584

This vulnerability has a high severity level with significant impacts on confidentiality, integrity, and availability, especially when exploited by users with high privileges.

Technical Details of CVE-2021-45584

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

Type: Command Injection
Affected devices: RBK752, RBR750, RBS750, RBK852, RBR850, RBS850
Versions affected: Before 3.2.16.6

Affected Systems and Versions

Certain NETGEAR devices are vulnerable to command injection. The following versions are impacted: 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.

Exploitation Mechanism

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

Mitigation and Prevention

To secure systems against CVE-2021-45584, consider the following steps:

Immediate Steps to Take

Update affected devices to version 3.2.16.6 or later
Limit access to privileged accounts
Monitor network traffic for suspicious activity

Long-Term Security Practices

Regularly audit device configurations
Implement network segmentation to limit exposure
Educate users on secure authentication practices

Patching and Updates

Ensure the timely application of security patches provided by NETGEAR to address the command injection vulnerability in the affected devices.