Advisory Details

January 8th, 2025

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

CVE ID	CVE-2024-55631
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. By creating a symbolic link, 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/en-US/solution/KA-0018217
DISCLOSURE TIMELINE	2024-05-19 - Vulnerability reported to vendor 2025-01-08 - Coordinated public release of advisory 2025-01-08 - Advisory Updated
CREDIT	Frederik Reiter and Jan-Luca Gruber, cirosec GmbH

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