CVE-2021-42104: Trend Micro Apex One Unnecessary Privileges Local Privilege Escalation Vulnerability
First published: Thu Oct 21 2021(Updated: )
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.
Credit: security@trendmicro.com security@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Trendmicro Apex One | =2019 | |
| Trendmicro Apex One | =2019 | |
| Trendmicro Worry-free Business Security | =10.0-sp1 | |
| Trendmicro Worry-free Business Security Services | ||
| Microsoft Windows | ||
| Trend Micro Apex One | ||
| All of | ||
| Any of | ||
| Trendmicro Apex One | =2019 | |
| Trendmicro Apex One | =2019 | |
| Trendmicro Worry-free Business Security | =10.0-sp1 | |
| Trendmicro Worry-free Business Security Services | ||
| Microsoft Windows |
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Reference Links
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.
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