CVE-2021-45632 : Vulnerability Insights and Analysis

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR750 before 4.6.3.6, RBK752 before 3.2.17.12, RBR750 before 3.2.17.12, RBS750 before 3.2.17.12, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, and RBS850 before 3.2.17.12.

Understanding CVE-2021-45632

This CVE involves command injection vulnerability in specific NETGEAR devices.

What is CVE-2021-45632?

Command injection vulnerability in certain NETGEAR devices allows an unauthenticated attacker to execute commands, impacting the security of the devices listed.

The Impact of CVE-2021-45632

The vulnerability has a CVSS base score of 9.6, categorizing it as critical. It poses high risks to confidentiality, integrity, and availability, as an attacker can execute arbitrary commands without authentication.

Technical Details of CVE-2021-45632

This section covers the technical aspects of the CVE.

Vulnerability Description

Type: Command injection
Attack Complexity: Low
Attack Vector: Adjacent Network
Privileges Required: None
User Interaction: None
Scope: Changed

Affected Systems and Versions

CBR750 before 4.6.3.6
RBK752, RBR750, RBS750 before 3.2.17.12
RBK852, RBR850, RBS850 before 3.2.17.12

Exploitation Mechanism

The vulnerability allows an unauthenticated attacker to inject and execute commands on the affected NETGEAR devices.

Mitigation and Prevention

Actions to mitigate and prevent exploitation of CVE-2021-45632.

Immediate Steps to Take

Update affected devices to the latest firmware versions.
Implement network segmentation to reduce attack surface.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update firmware and security patches.
Conduct security assessments and penetration testing.
Educate users on cybersecurity best practices.

Patching and Updates

Ensure consistent application of security patches and updates to address known vulnerabilities.