CVE-2021-28649 : Exploit Details and Defense Strategies

This CVE-2021-28649 article provides insights into an incorrect permission vulnerability in Trend Micro HouseCall for Home Networks version 5.3.1179 and below, potentially enabling privilege escalation for attackers.

Understanding CVE-2021-28649

This section delves into the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2021-28649?

The vulnerability in Trend Micro HouseCall for Home Networks version 5.3.1179 and below allows attackers to leverage an incorrect permission issue in the product installer, leading to privilege escalation opportunities.

The Impact of CVE-2021-28649

Attackers can exploit this vulnerability by placing arbitrary code in a specified folder, which, when executed by an Administrator during a scan, can allow unauthorized privilege escalation.

Technical Details of CVE-2021-28649

Let's explore the technical aspects of this vulnerability.

Vulnerability Description

An incorrect permission vulnerability exists in the product installer of Trend Micro HouseCall for Home Networks version 5.3.1179 and below, potentially exploited by attackers to elevate privileges on the target system.

Affected Systems and Versions

The vulnerability affects Trend Micro HouseCall for Home Networks version 5.3.1179 and earlier versions.

Exploitation Mechanism

To exploit CVE-2021-28649, attackers must first execute low-privileged code on the target system, allowing them to escalate privileges through the vulnerability.

Mitigation and Prevention

This section highlights the necessary steps to mitigate and prevent exploitation of CVE-2021-28649.

Immediate Steps to Take

Users are advised to apply security best practices and precautions to prevent unauthorized privilege escalation attempts.

Long-Term Security Practices

Implementing robust security measures, such as regular security audits and access controls, can bolster the system's resilience against privilege escalation attacks.

Patching and Updates

Vendor updates and patches play a crucial role in addressing vulnerabilities, including applying fixes provided by Trend Micro to secure affected systems.