Security Bulletin: Trend Micro Antivirus for Mac (Consumer) Protection Bypass Vulnerability

Bulletin Date: October 13, 2020

Platform: macOS

Assigned CVE: CVE-2020-25777

CVSSv3 Score: 5.4

Severity Rating: Medium

Summary

The Trend Micro Antivirus for Mac 2020 consumer family of products has released an update via ActiveUpdate to address a protection bypass vulnerability.

Affected versions

Solution

Trend Micro has addressed this vulnerability on the 2020 family of products (version 10.x) via a patch that is available now through the product’s automatic ActiveUpdate feature for all versions of Trend Micro Antivirus for Mac listed above. Customers who have at least version 10.0 will already have the necessary patch applied. Customers who have version 9.0 and below are recommended to install the latest version to address the issue.

The latest versions of Trend Micro Antivirus for Mac can be found here.

Vulnerability Details

Trend Micro Antivirus for Mac 2020 (Consumer) is vulnerable to a specific kernel extension request attack where an attacker could bypass the Web Threat Protection feature of the product.

User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

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:

• Cees Elzinga from Danish Cyber Defence 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.

Technical Reference

• ZDI-20-1242