CVE-2025-49218
📋 TL;DR
A post-authentication SQL injection vulnerability in Trend Micro Endpoint Encryption PolicyServer allows authenticated attackers to execute arbitrary SQL commands, potentially leading to privilege escalation. This affects organizations using Trend Micro Endpoint Encryption with vulnerable PolicyServer installations. Attackers must first have low-privileged access to the target system to exploit this vulnerability.
💻 Affected Systems
- Trend Micro Endpoint Encryption PolicyServer
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with administrative privileges, data exfiltration, and lateral movement across the network.
Likely Case
Privilege escalation from low-privileged user to system administrator, enabling further attacks on the endpoint encryption infrastructure.
If Mitigated
Limited impact due to network segmentation, proper access controls, and monitoring preventing successful exploitation.
🎯 Exploit Status
Similar to CVE-2025-49215; requires authenticated access first; SQL injection in PolicyServer component
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://success.trendmicro.com/en-US/solution/KA-0019928
Restart Required: Yes
Instructions:
1. Review Trend Micro advisory KA-0019928
2. Download and apply the latest patch from Trend Micro
3. Restart affected PolicyServer services
4. Verify patch installation
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to PolicyServer to only authorized administrative networks
Principle of Least Privilege
allMinimize user accounts with access to PolicyServer and implement strict access controls
🧯 If You Can't Patch
- Implement strict network segmentation to isolate PolicyServer from general user networks
- Enhance monitoring and alerting for unusual SQL queries or authentication attempts to PolicyServer
🔍 How to Verify
Check if Vulnerable:
Check Trend Micro Endpoint Encryption PolicyServer version against vendor advisory; review system logs for SQL injection attemptsCheck Version:
Check Trend Micro Endpoint Encryption console or administrative interface for PolicyServer version informationVerify Fix Applied:
Verify PolicyServer version matches patched version in vendor advisory; test functionality after patch application📡 Detection & Monitoring
Log Indicators:
- Unusual SQL query patterns in PolicyServer logs
- Multiple failed authentication attempts followed by successful login and SQL activity
- Unexpected privilege escalation events
Network Indicators:
- Unusual network traffic to PolicyServer ports from non-administrative sources
- SQL query patterns in network traffic to PolicyServer
SIEM Query:
source="trend_micro_policyserver" AND (event_type="sql_query" AND query CONTAINS "UNION" OR query CONTAINS "SELECT * FROM")