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CVE-2020-24556

HIGHCVSS 7.8/10EPSS 0.78%

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
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.78%

51.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
TrendmicroApex One2019—
TrendmicroApex Onesaas—
TrendmicroWorry-Free Business Security10.0Sp1
TrendmicroWorry-Free Business Security ServicesAll versions—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-24556?
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.
How severe is CVE-2020-24556?
CVE-2020-24556 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.
How do I fix CVE-2020-24556?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-24556?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST