CVE-2021-42107: 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-2021-42107?
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.
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