CVE-2021-45521 Explained : Impact and Mitigation

Certain NETGEAR devices have a hardcoded password vulnerability affecting specific models. This CVE has a CVSS base score of 7.4, indicating a high severity issue.

Understanding CVE-2021-45521

This CVE pertains to a hardcoded password vulnerability found in NETGEAR devices.

What is CVE-2021-45521?

The CVE-2021-45521 vulnerability involves certain NETGEAR devices being susceptible to exploitation due to a hardcoded password. Specifically, the RBK352, RBR350, and RBS350 models are affected.

The Impact of CVE-2021-45521

CVSS Base Score: 7.4 (High Severity)
Confidentiality Impact: High
Attack Vector: Adjacent Network
Scope: Changed
No user interaction or privileges required

Technical Details of CVE-2021-45521

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability involves a hardcoded password issue in certain NETGEAR devices, allowing unauthorized access.

Affected Systems and Versions

The following devices and versions are impacted:

RBK352 before 4.4.0.10
RBR350 before 4.4.0.10
RBS350 before 4.4.0.10

Exploitation Mechanism

Attackers can exploit this vulnerability by utilizing the hardcoded password to gain unauthorized access to affected NETGEAR devices.

Mitigation and Prevention

Taking steps to address and prevent the exploitation of this vulnerability is crucial.

Immediate Steps to Take

Update affected devices to version 4.4.0.10 or later to mitigate the vulnerability.
Change the default password of NETGEAR devices to a strong, unique password.

Long-Term Security Practices

Regularly monitor for security advisories and updates from NETGEAR.
Implement network segmentation and access controls to limit exposure.

Patching and Updates

Apply all available security patches and updates from NETGEAR to ensure the latest security measures are in place.