CVE-2021-20119 : Exploit Details and Defense Strategies

A vulnerability has been identified in the password change utility for Arris SurfBoard SB8200, allowing any logged-in user to change the administrator password.

Understanding CVE-2021-20119

This section will provide insights into the nature of the vulnerability.

What is CVE-2021-20119?

The CVE-2021-20119 relates to an insecure password change utility in the Arris SurfBoard SB8200, enabling users to bypass safety measures and modify the administrator password.

The Impact of CVE-2021-20119

The vulnerability poses a significant security risk as it allows unauthorized users to gain control by changing the admin password.

Technical Details of CVE-2021-20119

Explore the specific technical aspects of the CVE in this section.

Vulnerability Description

The flaw in the Arris SurfBoard SB8200 password change utility allows any authenticated user to alter the administrator password without proper authorization.

Affected Systems and Versions

The affected system includes the Arris SurfBoard SB8200 model with version 'Arris SurfBoard SB8200 AB01.02.053.01_112320_193.0A.NSH'.

Exploitation Mechanism

The vulnerability is exploited by logged-in users who can navigate the password change utility to reset the administrator password.

Mitigation and Prevention

Learn about the necessary steps to mitigate the risks associated with CVE-2021-20119.

Immediate Steps to Take

Users should avoid accessing the password change utility until a security patch is released to address the vulnerability.

Long-Term Security Practices

Implement password policies and user access controls to minimize the impact of such vulnerabilities in the future.

Patching and Updates

Stay informed about security updates from the vendor and apply patches promptly to secure the Arris SurfBoard SB8200 device.