CVE-2020-24556: Trend Micro Apex One Hard Link Privilege Escalation Vulnerability
First published: Tue Sep 01 2020(Updated: )
A vulnerability in Trend Micro Apex One, OfficeScan XG SP1, Worry-Free Business Security 10 SP1 and Worry-Free Business Security Services on Microsoft Windows may allow an attacker to create a hard link to any file on the system, which then could be manipulated to gain a privilege escalation and code execution. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. Please note that version 1909 (OS Build 18363.719) of Microsoft Windows 10 mitigates hard links, but previous versions are affected.
Credit: security@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Trend Micro Apex One | ||
| Trendmicro Apex One | =2019 | |
| Trendmicro Apex One | =saas | |
| Microsoft Windows | ||
| Trendmicro Worry-free Business Security | =10.0-sp1 | |
| Trendmicro Worry-free Business Security Services | ||
| Apple macOS |
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Reference Links
Frequently Asked Questions
What is CVE-2020-24556?
CVE-2020-24556 is a vulnerability in Trend Micro Apex One, OfficeScan XG SP1, Worry-Free Business Security 10 SP1, and Worry-Free Business Security Services on Microsoft Windows that allows an attacker to create a hard link to any file on the system, leading to privilege escalation and code execution.
What software versions are affected by CVE-2020-24556?
CVE-2020-24556 affects Trend Micro Apex One 2019, Trend Micro Apex One saas, Trend Micro Worry-Free Business Security 10 SP1, and Trend Micro Worry-Free Business Security Services.
How severe is CVE-2020-24556?
CVE-2020-24556 has a severity rating of 7.8 (high).
How can an attacker exploit CVE-2020-24556?
An attacker can exploit CVE-2020-24556 by creating a hard link to a file on the system and manipulating it to gain privilege escalation and execute malicious code.
Where can I find more information about CVE-2020-24556?
You can find more information about CVE-2020-24556 on the Trend Micro website and the Zero Day Initiative advisory.
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