Trend Micro Maximum Security tmusa Time-Of-Check/Time-Of-Use Privilege Escalation Vulnerability

2017-06-13T00:00:00
ID ZDI-17-396
Type zdi
Reporter Jaanus Kp Clarified Security
Modified 2017-06-14T00:00:00

Description

This vulnerability allows local attackers to escalate privilege on vulnerable installations of Trend Micro Maximum Security. 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 processing of IOCTL 0x222813. The issue results from a time-of-check/time-of-use vulnerability, which allows an attacker to change a field that is being used by the kernel. An attacker can leverage this vulnerability to escalate privileges to SYSTEM.