CVE-2022-44647

Vulnerability

This vulnerability is an out-of-bounds read issue in the User Mode Hooking Monitor Engine of Trend Micro Apex One and Apex One as a Service. The lack of proper validation of user-supplied data can result in a read past the end of an allocated buffer. The specific affected versions are not explicitly listed in the available references, but the flaw affects installations of Trend Micro Apex One Security Agent [1].

Exploitation

An attacker must first obtain the ability to execute low-privileged code on the target system. By supplying specially crafted data to the User Mode Hooking Monitor Engine, the attacker can trigger an out-of-bounds read. This can be leveraged to disclose sensitive information from memory. Additionally, this vulnerability can be used in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code with SYSTEM privileges [1].

Impact

Successful exploitation allows a local attacker to disclose sensitive information. When combined with other vulnerabilities, it can lead to privilege escalation to SYSTEM and arbitrary code execution. The CVSS score is 4.4, indicating a moderate severity [1].

Mitigation

Trend Micro has released security updates to address this vulnerability. Users are advised to apply the latest patches as described in the vendor advisory. No workarounds have been provided in the available references [2].