CVE-2020-24557
Trend Micro Multiple Products Improper Access Control Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Apex One, OfficeScan, and Worry-Free Business Security, fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by May 3, 2022.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
Description
A vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 on Microsoft Windows may allow an attacker to manipulate a particular product folder to disable the security temporarily, abuse a specific Windows function and attain privilege escalation. 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.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Source |
|---|---|---|---|
| Apex One | Trend Micro | all versions; 2019 | NVD |
| Apex One, OfficeScan, and Worry-Free Business Security | Trend Micro | — | KEV |
Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2020-24557 scored CVSS 7.8: Trend Micro Apex One, OfficeScan, and Worry-Free Business Security, Trend Micro Multiple Products Improper Access Control Vulnerability
CISA lists this as exploited in the wild. Unpatched Apex One, OfficeScan, and Worry-Free Business Security systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
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Coverage
We have not published a story about this vulnerability yet.