PT-2018-17432 · Trend Micro · Trend Micro Maximum Security

Published 2018-05-04 · Updated 2018-06-28 · CVE-2018-6236

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Trend Micro Maximum Security (Consumer) version 2018

Description A Time-of-Check Time-of-Use privilege escalation issue exists due to a flaw in the processing of IOCTL 0x222813 by the tmusa driver. This could allow a local attacker to escalate privileges on vulnerable installations, but the attacker must first obtain the ability to execute low-privileged code on the target system.

Recommendations For Trend Micro Maximum Security (Consumer) version 2018, consider restricting access to the tmusa driver to minimize the risk of exploitation until a patch is available. As a temporary workaround, disabling the vulnerable tmusa driver functionality may help mitigate the issue.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2018-6236

ZDI-18-410

Affected Products

Trend Micro Maximum Security

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2018-6236 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-18-410 · Security Note
• https://osv.dev/vulnerability/CVE-2018-6236 · Vendor Advisory
• https://esupport.trendmicro.com/en-us/home/pages/technical-support/1119591.aspx · Vendor Advisory