CVE-2021-23139 : Exploit Details and Defense Strategies

A null pointer vulnerability has been identified in Trend Micro Apex One and Trend Micro Worry-Free Business Security 10.0 SP1. This vulnerability could be exploited by an attacker, leading to the crash of the CGI program on affected systems.

Understanding CVE-2021-23139

This section delves into the details of the CVE-2021-23139 vulnerability.

What is CVE-2021-23139?

The CVE-2021-23139 is a null pointer vulnerability found in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1, which could potentially be abused by malicious actors to crash the CGI program on impacted installations.

The Impact of CVE-2021-23139

The presence of this vulnerability exposes affected systems to the risk of crashing the CGI program, which could result in denial of service and other potential security threats.

Technical Details of CVE-2021-23139

This section covers the technical aspects of CVE-2021-23139.

Vulnerability Description

The vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 is due to a null pointer issue, allowing attackers to cause the CGI program to crash.

Affected Systems and Versions

Trend Micro Apex One 2019
Trend Micro Worry-Free Business Security 10.0 SP1

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the affected CGI program, resulting in a system crash.

Mitigation and Prevention

Learn about the steps to mitigate and prevent CVE-2021-23139.

Immediate Steps to Take

Users are advised to apply security patches issued by Trend Micro to address and mitigate the null pointer vulnerability.

Long-Term Security Practices

Implementing robust security measures, such as network segmentation and regular security updates, can enhance the overall security posture.

Patching and Updates

Regularly monitor and apply software updates and patches provided by Trend Micro to mitigate the risk posed by CVE-2021-23139.