CVE-2021-45587 : 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-2021-45587

Certain NETGEAR devices face a critical vulnerability due to command injection, potentially allowing an authenticated user to execute malicious commands.

What is CVE-2021-45587?

Command injection vulnerability impacting certain NETGEAR devices, enabling authenticated users to execute unauthorized commands. The affected models include RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850.

The Impact of CVE-2021-45587

The vulnerability poses a high risk with a CVSS base score of 8.4, indicating high impacts on confidentiality, integrity, and availability. A comprehensive security risk affecting compromised devices.

Technical Details of CVE-2021-45587

Critical technical insights into the command injection vulnerability.

Vulnerability Description

Authenticated users can exploit the flaw to execute arbitrary commands on certain NETGEAR devices.

Affected Systems and Versions

RBK752, RBR750, RBS750, RBK852, RBR850, RBS850 before version 3.2.16.6 are vulnerable.

Exploitation Mechanism

Low attack complexity, adjacent network attack vector, requiring high privileges for exploitation.

Mitigation and Prevention

Essential steps to address and prevent the CVE-2021-45587 vulnerability.

Immediate Steps to Take

Update the affected devices to version 3.2.16.6 or later.
Educate users about the risks of command injection and the critical need for strong authentication.
Monitor the network for any suspicious activity that could indicate an attack.

Long-Term Security Practices

Implement network segmentation to limit the potential impact of a successful attack.
Regularly review and update security policies and procedures.
Conduct security training for employees on identifying and reporting potential security threats.

Patching and Updates

Stay informed about security advisories from NETGEAR and promptly apply patches and updates to mitigate emerging threats.