CVE-2023-47197
📋 TL;DR
This CVE describes a local privilege escalation vulnerability in Trend Micro Apex One security agent where an attacker with low-privileged access can elevate privileges on affected systems. The vulnerability stems from improper origin validation, allowing attackers to bypass security controls. Organizations using Trend Micro Apex One security agent are affected.
💻 Affected Systems
- Trend Micro Apex One
📦 What is this software?
Apex One by Trendmicro
Apex One by Trendmicro
⚠️ Risk & Real-World Impact
Worst Case
An attacker with initial low-privileged access gains full SYSTEM/root privileges, enabling complete system compromise, data theft, lateral movement, and persistence establishment.
Likely Case
Local attackers escalate from standard user to administrator privileges, allowing them to disable security controls, install malware, or access sensitive data.
If Mitigated
With proper endpoint security controls and least privilege principles, impact is limited to isolated systems with minimal data exposure.
🎯 Exploit Status
Exploitation requires local access and low-privileged code execution first; similar to CVE-2023-47198 but distinct vulnerability
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Trend Micro advisory for specific patched versions
Vendor Advisory: https://success.trendmicro.com/dcx/s/solution/000295652?language=en_US
Restart Required: Yes
Instructions:
1. Access Trend Micro Apex One management console
2. Check for available security updates
3. Apply the latest security patch from Trend Micro
4. Restart affected systems to complete installation
🔧 Temporary Workarounds
Restrict local user privileges
windowsImplement least privilege principles to limit initial low-privileged access that attackers need for exploitation
Enable application control/whitelisting
windowsPrevent unauthorized code execution that could provide the initial foothold needed for exploitation
🧯 If You Can't Patch
- Implement strict endpoint detection and response (EDR) monitoring for privilege escalation attempts
- Segment networks to limit lateral movement if privilege escalation occurs
🔍 How to Verify
Check if Vulnerable:
Check Trend Micro Apex One agent version against advisory; vulnerable if running affected versionsCheck Version:
Check Apex One console or agent properties for version informationVerify Fix Applied:
Verify Apex One agent version matches or exceeds patched version specified in Trend Micro advisory📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation events in Windows Security logs (Event ID 4672, 4688)
- Trend Micro Apex One agent service manipulation attempts
Network Indicators:
- Lateral movement following local privilege escalation
SIEM Query:
Example: (event_id:4672 OR event_id:4688) AND process_name:"*trend*" AND user_account_changes