CVE-2021-42107: Trend Micro Apex One Unnecessary Privileges Local Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Trend Micro Apex One. 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 Security Agent. The issue results from allowing an untrusted process to impersonate the client of a pipe. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.
Other sources
Unnecessary privilege vulnerabilities in Trend Micro Apex One, Apex One as a Service, Worry-Free Business Security 10.0 SP1 and Worry-Free Business Security Services could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. This vulnerability is similar to but not identical to CVE-2021-42104, 42105 and 42106.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Frequently Asked Questions
What is CVE-2021-42107?
CVE-2021-42107 is a vulnerability that allows local attackers to escalate privileges on affected installations of Trend Micro Apex One.
How can an attacker exploit CVE-2021-42107?
An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
Which products are affected by CVE-2021-42107?
Trend Micro Apex One 2019, Trend Micro Trend Micro Apex One and Worry-Free Business Security 2019, Trendmicro Worry-free Business Security 10.0-sp1, and Trendmicro Worry-free Business Security Services are affected.
What is the severity rating of CVE-2021-42107?
CVE-2021-42107 has a severity rating of 7.8 (high).
How can I fix CVE-2021-42107?
It is recommended to follow the instructions provided by Trend Micro in their advisories (refer to the provided references) to mitigate the vulnerability.