CVE-2021-42105: 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-2021-42105?
CVE-2021-42105 is a vulnerability that allows local attackers to escalate privileges on affected installations of Trend Micro Apex One.
How does CVE-2021-42105 work?
An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
What is the severity of CVE-2021-42105?
CVE-2021-42105 has a severity score of 7.8 (high).
Which software is affected by CVE-2021-42105?
Trend Micro Apex One versions 2019 and Worry-Free Business Security versions 10.0-sp1 are affected by CVE-2021-42105.
How can I fix CVE-2021-42105?
To fix CVE-2021-42105, apply the necessary security patches provided by Trend Micro.
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