CVE-2021-42104: 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-2021-42105, 42106 and 42107.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Frequently Asked Questions
What is CVE-2021-42104?
CVE-2021-42104 is a vulnerability that allows local attackers to escalate privileges on affected installations of Trend Micro Apex One.
How can an attacker exploit CVE-2021-42104?
To exploit CVE-2021-42104, an attacker must first obtain the ability to execute low-privileged code on the target system.
What is the severity of CVE-2021-42104?
CVE-2021-42104 has a severity score of 7.8, which is considered high.
Which software versions are affected by CVE-2021-42104?
The vulnerability affects Trend Micro Apex One 2019 and Trend Micro Trend Micro Apex One and Worry-Free Business Security 2019.
How can I fix CVE-2021-42104?
To fix CVE-2021-42104, update to the latest version of Trend Micro Apex One or Trend Micro Trend Micro Apex One and Worry-Free Business Security.