Security Bulletin: Trend Micro HouseCall for Home Networks Uncontrolled Search Path Element Privilege Escalation Vulnerability

Bulletin Date: September 23, 2021

CVE Vulnerability Identifier: CVE-2021-32466

Platform: Microsoft Windows

CVSSv3 Score: 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Severity Rating: Low

Summary

Trend Micro has released an updated version of Trend Micro HouseCall for Home Networks which resolves an uncontrolled search path element privilege escalation vulnerability that may lead to arbitrary code execution.

Affected versions

Solution

Trend Micro has released an updated version of the product which can be downloaded from here.

In addition, Trend Micro has released an update via the product’s ActiveUpdate automatic update mechanism to resolve this issue. The affected product should receive the update automatically as long as your computer is connected to the Internet.

Vulnerability Details

An uncontrolled search path element privilege escalation vulnerability in Trend Micro HouseCall for Home Networks version 5.3.1225 and below could allow an attacker to escalate privileges by placing a custom crafted file in a specific directory to load a malicious library.

Please note that an attacker must first obtain the ability to execute low-privileged code on the target system to exploit this vulnerability.

Trend Micro has received no reports nor is aware of any actual attacks against the affected product related to this vulnerability at this time.

Acknowledgement

Trend Micro would like to thank the following individual for responsibly disclosing the issue and working with Trend Micro to help protect our customers:

• Xavier Danest - Decathlon working with Trend Micro’s Zero Day Initiative

Additional Assistance

Customers who have questions are encouraged to contact Trend Micro Technical Support for further assistance.

Reference

• ZDI-CAN-13794