CVE-2022-25329
📋 TL;DR
CVE-2022-25329 is a critical authentication bypass vulnerability in Trend Micro ServerProtect where the Information Server uses static credentials for authentication. Unauthenticated remote attackers with network access to the Information Server can exploit this to register to the server and perform authenticated actions. This affects Trend Micro ServerProtect deployments with the vulnerable Information Server component exposed.
💻 Affected Systems
- Trend Micro ServerProtect
📦 What is this software?
Serverprotect by Trendmicro
Serverprotect by Trendmicro
Serverprotect by Trendmicro
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the ServerProtect management server allowing attackers to disable protection, deploy malware, exfiltrate sensitive data, and pivot to other systems in the environment.
Likely Case
Attackers gain administrative control over ServerProtect, disable endpoint protection, and deploy ransomware or other malware across managed systems.
If Mitigated
Limited impact due to network segmentation and access controls preventing unauthorized access to the Information Server interface.
🎯 Exploit Status
Exploitation requires network access to the Information Server (default port 5000/TCP). The vulnerability is straightforward to exploit with publicly available technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to ServerProtect 6.0 SP1 Patch 4 or later
Vendor Advisory: https://success.trendmicro.com/solution/000290507
Restart Required: Yes
Instructions:
1. Download the latest patch from Trend Micro support portal. 2. Apply the patch to all affected ServerProtect servers. 3. Restart the ServerProtect services. 4. Verify the patch is applied successfully.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to the ServerProtect Information Server (default port 5000/TCP) to only authorized management systems.
Disable Information Server
windowsIf the Information Server functionality is not required, disable it completely.
Stop the 'Trend Micro ServerProtect Information Server' service
🧯 If You Can't Patch
- Implement strict network access controls to limit access to the Information Server port (5000/TCP) to only trusted management IP addresses.
- Monitor for unauthorized access attempts to the Information Server interface and implement intrusion detection rules.
🔍 How to Verify
Check if Vulnerable:
Check if ServerProtect Information Server is running on port 5000/TCP and the version is 6.0 or 5.8 without the patch applied.Check Version:
Check the ServerProtect console or installation directory for version information, or review the installed programs list in Windows.Verify Fix Applied:
Verify the ServerProtect version is 6.0 SP1 Patch 4 or later, and test that the static credential authentication no longer works.📡 Detection & Monitoring
Log Indicators:
- Unauthorized connection attempts to port 5000/TCP
- Unexpected registration events in ServerProtect logs
- Authentication attempts using static credentials
Network Indicators:
- Unusual traffic to ServerProtect Information Server port (5000/TCP) from unauthorized sources
- Multiple failed followed by successful authentication attempts
SIEM Query:
source_port:5000 AND (event_type:authentication OR event_type:connection) AND NOT src_ip IN [authorized_management_ips]