CVE-2021-45577 : Vulnerability Insights and Analysis

Certain NETGEAR devices are affected by command injection by an authenticated user. This vulnerability impacts multiple models before version 3.2.16.6.

Understanding CVE-2021-45577

What is CVE-2021-45577?

CVE-2021-45577 is a vulnerability affecting certain NETGEAR devices that allows an authenticated user to execute commands via command injection. The issue impacts several models before version 3.2.16.6.

The Impact of CVE-2021-45577

The CVSS v3.1 base score for this vulnerability is 8.4, classifying it as high severity. The confidentiality, integrity, and availability of the affected systems are all at risk, with privileges required for exploitation.

Technical Details of CVE-2021-45577

Vulnerability Description

The vulnerability enables an authenticated user to perform command injection on various NETGEAR devices. This could lead to unauthorized execution of commands and compromise the affected systems.

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

The attack complexity is low, but the impact is high as the attacker can exploit the vulnerability from an adjacent network without any user interaction, requiring high privileges.

Mitigation and Prevention

Immediate Steps to Take

Update the affected NETGEAR devices to version 3.2.16.6 or later to patch the vulnerability.
Monitor network traffic for any suspicious activities that could indicate exploitation.

Long-Term Security Practices

Implement strong authentication mechanisms to prevent unauthorized access.
Regularly review and update access controls and permissions to minimize the impact of potential security incidents.

Patching and Updates

Stay informed about security advisories from NETGEAR and apply patches promptly to address known vulnerabilities.