Trend Micro Antivirus for Mac Link Following Privilege Escalation Vulnerability
Vulnerability Details
This vulnerability allows local attackers to escalate privileges on affected installations of Trend Micro Antivirus for Mac. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the program_after_update script. By creating a symbolic link, an attacker can abuse the product to loosen permissions on a local file. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of root.
Additional Details
Trend Micro has issued an update to correct this vulnerability. More details can be found at:
https://helpcenter.trendmicro.com/en-us/article/tmka-10937
Disclosure Timeline
- 2021-10-15 - Vulnerability reported to vendor
- 2022-02-16 - Coordinated public release of advisory
Credit
Cees Elzinga
