Advisory Details

June 13th, 2017

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

CVE ID
CVSS SCORE	6.9, AV:L/AC:M/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Trend Micro
AFFECTED PRODUCTS	Maximum Security
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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