CVE-2020-24556
Last modified
CVE-2020-24556 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.78% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Trendmicro | Apex One | 2019 | — |
| Trendmicro | Apex One | saas | — |
| Trendmicro | Worry-Free Business Security | 10.0 | Sp1 |
| Trendmicro | Worry-Free Business Security Services | All versions | — |
References
- https://success.trendmicro.com/solution/000263632Vendor Advisory
- https://success.trendmicro.com/solution/000263633Vendor Advisory
- https://success.trendmicro.com/solution/000267260Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-1093/Third Party Advisory, VDB Entry
- https://success.trendmicro.com/solution/000263632Vendor Advisory
- https://success.trendmicro.com/solution/000263633Vendor Advisory
- https://success.trendmicro.com/solution/000267260Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-1093/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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