CVE-2020-14436 Explained : Impact and Mitigation

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This vulnerability impacts various NETGEAR models before version 3.2.15.25.

Understanding CVE-2020-14436

This CVE identifies a critical vulnerability in NETGEAR devices that allows unauthenticated attackers to execute commands through command injection.

What is CVE-2020-14436?

Command injection vulnerability in certain NETGEAR devices enables unauthorized attackers to execute commands on affected devices without authentication.

The Impact of CVE-2020-14436

The vulnerability has a CVSS base score of 9.6, indicating a critical severity level. It poses a high risk to confidentiality and integrity, with low complexity for attackers.

Technical Details of CVE-2020-14436

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows unauthenticated attackers to perform command injection on affected NETGEAR devices.

Affected Systems and Versions

RBK752, RBK753, RBK753S, RBR750, RBS750, RBK852, RBK853, RBR850, RBS850, RBK842, RBR840, and RBS840 before version 3.2.15.25.

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Adjacent Network
Privileges Required: None
User Interaction: None
Scope: Changed
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: Low

Mitigation and Prevention

Protect your systems from CVE-2020-14436 with the following steps:

Immediate Steps to Take

Update affected devices to version 3.2.15.25 or later.
Implement network segmentation to limit exposure.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

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

Patching and Updates

Ensure timely installation of security patches and firmware updates to mitigate the risk of command injection vulnerabilities.