Advisory Details

October 19th, 2021

Trend Micro Worry-Free Business Security Stack-based Buffer Overflow Privilege Escalation Vulnerability

CVE ID	CVE-2021-42012
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	Worry-Free Business Security
VULNERABILITY DETAILS	This vulnerability allows local attackers to escalate privileges on affected installations of Trend Micro Worry-Free Business 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 Trend Micro Security Server Database Service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. 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/000289230
DISCLOSURE TIMELINE	2021-06-30 - Vulnerability reported to vendor 2021-10-19 - Coordinated public release of advisory
CREDIT	@Kharosx0

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