CVE-2020-24559: Trend Micro Apex One Hard Link Privilege Escalation Vulnerability

Published Sep 1, 2020
·
Updated

A vulnerability in Trend Micro Apex One, Worry-Free Business Security 10.0 SP1 and Worry-Free Business Security Services on macOS may allow an attacker to manipulate a certain binary to load and run a script from a user-writable folder, which then would allow them to execute arbitrary code as root. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Other sources

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 ApexOne Security Agent. By creating a hard link, an attacker can abuse the service to overwrite the contents of a chosen file. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of root.

Affected Software

8 affected components
Trend Micro Apex One
trendmicro Apex One=2019
trendmicro Apex One=saas
trendmicro Officescan=xg-sp1
Apple macOS
trendmicro Worry-free Business Security=10.0-sp1
trendmicro Worry-free Business Security Services
Microsoft Windows

Event History

Sep 1, 2020
CVE Published
via MITRE·06:55 PM
Data Sourced
via MITRE·06:55 PM
DescriptionWeakness
Feb 24, 2025
Advisory Published
via ZDI·09:35 AM

Frequently Asked Questions

1

What is CVE-2020-24559?

CVE-2020-24559 is a vulnerability in Trend Micro Apex One that allows local attackers to escalate privileges.

2

How can an attacker exploit CVE-2020-24559?

An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

3

What is the affected software of CVE-2020-24559?

The affected software includes Trend Micro Apex One versions 2019, Trend Micro Apex One SaaS, and Trendmicro Officescan XG SP1.

4

What is the severity of CVE-2020-24559?

CVE-2020-24559 has a severity level of 7.8 (high).

5

Where can I find more information about CVE-2020-24559?

You can find more information about CVE-2020-24559 at the following references: [Link 1](https://success.trendmicro.com/solution/000263632), [Link 2](https://www.zerodayinitiative.com/advisories/ZDI-20-1096/), [Link 3](https://success.trendmicro.com/solution/000267260).

Contact

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