Bulletin Date: November 16, 2021
CVE Vulnerability Identifier: CVE-2021-43771
Platform: Macintosh OS
CVSSv3 Score: 7.8: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity Rating: High
Summary
Trend Micro has released updated versions of the Trend Micro Antivirus for MAC 2021 family of consumer products which resolves an Improper Access Control Privilege Escalation vulnerability.
Affected versions
| PRODUCT | AFFECTED VERSIONS | PLATFORM | LANGUAGE |
|---|---|---|---|
| Trend Micro Antivirus for MAC | 2021 (v11) | Macintosh OS | English |
Solution
| PRODUCT | UPDATED VERSION | PLATFORM | LANGUAGE |
|---|---|---|---|
| Trend Micro Antivirus for MAC 2021 (v11) | 11.0.2163 | Macintosh OS | English |
Trend Micro has released a new build and an update for the affected version via the product’s ActiveUpdate automatic update mechanism and customers should receive the update automatically as long as they are connected to the Internet or can upgrade to the latest product version.
Vulnerability Details
Trend Micro Antivirus for Mac 2021 v11 (Consumer) is vulnerable to an improper access control privilege escalation vulnerability that could allow an attacker to establish a connection that could lead to full local privilege escalation within the application.
Please note that an attacker must first obtain the ability to execute low-privileged code on the target system in order 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:
- Wojciech Regula 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-13882
