Advisory Details

April 12th, 2021

Trend Micro Apex One Improper Access Control Privilege Escalation Vulnerability

ZDI-21-401
ZDI-CAN-12148

CVE ID CVE-2021-25253
CVSS SCORE 7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Trend Micro
AFFECTED PRODUCTS Apex One
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of Trend Micro Apex One. 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 ApexOne Security Agent. The issue results from incorrect permissions set on a resource used by the service. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.
ADDITIONAL DETAILS Trend Micro has issued an update to correct this vulnerability. More details can be found at:
https://success.trendmicro.com/solution/000286019
DISCLOSURE TIMELINE
  • 2020-12-09 - Vulnerability reported to vendor
  • 2021-04-12 - Coordinated public release of advisory
CREDIT Lynn and Lays (@_L4ys)
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