Advisory Details

December 15th, 2022

Trend Micro Apex One Damage Cleanup Engine Link Following Local Privilege Escalation Vulnerability

ZDI-22-1665
ZDI-CAN-16543

CVE ID CVE-2022-45798
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 Security Agent. 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 Damage Cleanup Engine, which runs within the Trend Micro Common Client Real-time Scan Service. By creating a junction, an attacker can abuse the service to delete a folder. 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/000291830
DISCLOSURE TIMELINE
  • 2022-06-28 - Vulnerability reported to vendor
  • 2022-12-15 - Coordinated public release of advisory
CREDIT Abdelhamid Naceri
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