CVE-2021-45520 : What You Need to Know

Certain NETGEAR devices are affected by a hardcoded password vulnerability that impacts RBK352, RBR350, and RBS350 before version 4.4.0.10.

Understanding CVE-2021-45520

This CVE involves a critical vulnerability in NETGEAR devices due to hardcoded passwords.

What is CVE-2021-45520?

The CVE-2021-45520 vulnerability pertains to NETGEAR devices being susceptible to exploitation through a hardcoded password.

The Impact of CVE-2021-45520

The vulnerability has a base score of 9.6, indicating critical severity. It can lead to high impacts on confidentiality, integrity, and availability of the affected devices.

Technical Details of CVE-2021-45520

The technical aspects of CVE-2021-45520 provide insights into the vulnerability and affected systems.

Vulnerability Description

CVE ID: CVE-2021-45520
Attack Vector: ADJACENT_NETWORK
Attack Complexity: LOW
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH
Privileges Required: NONE
Scope: CHANGED

Affected Systems and Versions

RBK352 versions before 4.4.0.10
RBR350 versions before 4.4.0.10
RBS350 versions before 4.4.0.10

Exploitation Mechanism

The vulnerability can be exploited by adversaries in the adjacent network without needing any special privileges or user interaction.

Mitigation and Prevention

Effective mitigation strategies are crucial to address and prevent CVE-2021-45520.

Immediate Steps to Take

Update affected devices to version 4.4.0.10 or newer.
Change default passwords to strong, unique ones.
Limit network exposure and access.
Monitor for any suspicious activity.

Long-Term Security Practices

Regularly update firmware and security patches.
Conduct security assessments and audits periodically.
Implement network segmentation and access controls.

Patching and Updates

Software patches and updates are essential to mitigate vulnerabilities. Ensure devices are regularly patched with the latest firmware releases.