Advisory Details

September 23rd, 2022

Trend Micro Deep Security Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID	CVE-2022-40709
CVSS SCORE	4.4, AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
AFFECTED VENDORS	Trend Micro
AFFECTED PRODUCTS	Deep Security
VULNERABILITY DETAILS	This vulnerability allows local attackers to disclose sensitive information on affected installations of Trend Micro Deep 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 User Mode Hooking Monitor Engine. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities 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/000291590
DISCLOSURE TIMELINE	2022-02-16 - Vulnerability reported to vendor 2022-09-23 - Coordinated public release of advisory
CREDIT	Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative

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