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

June 13th, 2017

Vulnerability Details


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.

Additional Details

Trend Micro has issued an update to correct this vulnerability. More details can be found at:
https://success.trendmicro.com/solution/1117509

Disclosure Timeline

  • 2017-03-28 - Vulnerability reported to vendor
  • 2017-06-13 - Coordinated public release of advisory

Credit

Jaanus Kp
Clarified Security

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