CVE-2021-45442 : Vulnerability Insights and Analysis

Trend Micro Worry-Free Business Security (on prem only) is affected by a link following denial-of-service vulnerability that could be exploited by a local attacker to overwrite arbitrary files in the context of SYSTEM.

Understanding CVE-2021-45442

This CVE involves a specific vulnerability in Trend Micro Worry-Free Business Security.

What is CVE-2021-45442?

The CVE-2021-45442 is a link following denial-of-service vulnerability in Trend Micro Worry-Free Business Security, allowing a local attacker to overwrite arbitrary files.

The Impact of CVE-2021-45442

The vulnerability could result in an attacker being able to overwrite arbitrary files in the context of SYSTEM, necessitating the execution of low-privileged code on the target system.

Technical Details of CVE-2021-45442

This section delves into the technical specifics of the CVE.

Vulnerability Description

The vulnerability permits a local attacker to overwrite arbitrary files within the SYSTEM context.

Affected Systems and Versions

Product: Trend Micro Worry-Free Business Security
Version: 10.0 SP1

Exploitation Mechanism

To exploit this vulnerability, the attacker must first gain the ability to execute low-privileged code on the target system.

Mitigation and Prevention

Here are the necessary steps to address and prevent the exploitation of CVE-2021-45442.

Immediate Steps to Take

Apply the latest security patches from Trend Micro.
Monitor system activity for any suspicious behavior.
Restrict access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Implement strong authentication mechanisms to limit unauthorized access.

Patching and Updates

Regularly check for and apply security updates provided by Trend Micro.