CVE-2019-19693
📋 TL;DR
This vulnerability in Trend Micro Security 2020 consumer products allows a local attacker with low-privileged code execution to disclose sensitive information or cause denial-of-service. It affects Trend Micro consumer security software users. Attackers need initial access to the target system to exploit this flaw.
💻 Affected Systems
- Trend Micro Security 2020
- Trend Micro Maximum Security 2020
- Trend Micro Internet Security 2020
- Trend Micro Premium Security 2020
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through information disclosure leading to privilege escalation or persistent denial-of-service rendering security software inoperable.
Likely Case
Local information disclosure of sensitive security configuration data or temporary denial-of-service affecting Trend Micro services.
If Mitigated
Minimal impact if proper access controls prevent low-privileged code execution and security software is kept updated.
🎯 Exploit Status
Requires local low-privileged code execution first. CWE-59 indicates improper link resolution before file access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version with build 16.0.1221 or later
Vendor Advisory: https://esupport.trendmicro.com/en-us/home/pages/technical-support/1124043.aspx
Restart Required: Yes
Instructions:
1. Open Trend Micro Security 2020. 2. Click 'Check for Updates'. 3. Install available updates. 4. Restart computer when prompted.
🔧 Temporary Workarounds
Restrict local user privileges
windowsLimit users to standard accounts without administrative privileges to prevent low-privileged code execution.
Application whitelisting
windowsImplement application control policies to prevent unauthorized code execution.
🧯 If You Can't Patch
- Implement strict user privilege management to prevent low-privileged code execution
- Monitor for unusual local process activity and Trend Micro service disruptions
🔍 How to Verify
Check if Vulnerable:
Check Trend Micro version: Open Trend Micro > Help > About. If build number is below 16.0.1221, system is vulnerable.Check Version:
Not applicable - check via Trend Micro GUI Help > AboutVerify Fix Applied:
Verify version shows 16.0.1221 or higher in Help > About. Check that Trend Micro services are running normally.📡 Detection & Monitoring
Log Indicators:
- Trend Micro service crashes or restarts
- Unusual local process accessing Trend Micro directories
- Security software failure events
Network Indicators:
- None - local vulnerability only
SIEM Query:
EventID from Trend Micro logs indicating service disruption or unauthorized access attempts