CVE-2020-24557
Trend Micro Multiple Products Improper Access Control Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.64% probability · 85th percentile
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Affected
- trendmicro/apex one · trendmicro/worry-free business security
- Source
- security@trendmicro.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-24557
References
- https://success.trendmicro.com/solution/000263632Vendor Advisory
- https://success.trendmicro.com/solution/000267260Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-1094/Third Party Advisory, VDB Entry
- https://success.trendmicro.com/solution/000263632Vendor Advisory
- https://success.trendmicro.com/solution/000267260Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-1094/Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-24557US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.