CVE-2021-42165 : What You Need to Know

MitraStar GPT-2541GNAC-N1 (HGU) 100VNZ0b33 devices allow remote authenticated users to obtain root access by executing a specific command due to a parameter sanitization issue.

Understanding CVE-2021-42165

What is CVE-2021-42165?

The CVE-2021-42165 vulnerability in MitraStar GPT-2541GNAC-N1 (HGU) devices enables authenticated remote users to achieve root access by exploiting a sanitization flaw in a specific parameter.

The Impact of CVE-2021-42165

This vulnerability can result in attackers gaining unauthorized root access to affected devices, leading to potential exploitation of the system and sensitive data.

Technical Details of CVE-2021-42165

Vulnerability Description

MitraStar GPT-2541GNAC-N1 (HGU) 100VNZ0b33 devices are susceptible to a flaw that allows authenticated users to execute a specific command to gain root access.

Affected Systems and Versions

Vendor: MitraStar
Product: GPT-2541GNAC-N1 (HGU)
Vulnerable Version: 100VNZ0b33

Exploitation Mechanism

Attackers can exploit the vulnerability by executing the command "deviceinfo show file &&/bin/bash" after bypassing the insufficient sanitization of the "path" parameter.

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-supplied patches or updates to mitigate the vulnerability.
Restrict network access to the device to trusted users or hosts.

Long-Term Security Practices

Regularly monitor for any unauthorized access or abnormal activities on the device.
Implement strong authentication mechanisms to prevent unauthorized access.

Patching and Updates

Stay informed about security advisories from MitraStar and promptly apply any released patches or updates to secure the device.