Advisory Details

August 30th, 2021

Trend Micro Maximum Security Directory Junction Denial-of-Service Vulnerability

ZDI-21-1052
ZDI-CAN-13371

CVE ID CVE-2021-36744
CVSS SCORE 6.1, AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
AFFECTED VENDORS Trend Micro
AFFECTED PRODUCTS Maximum Security
VULNERABILITY DETAILS

This vulnerability allows local attackers to create a denial-of-service condition on affected 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 Maximum Security Agent. By creating a directory junction, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

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-10568
DISCLOSURE TIMELINE
  • 2021-04-28 - Vulnerability reported to vendor
  • 2021-08-30 - Coordinated public release of advisory
CREDIT Abdelhamid Naceri (halov)
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