CVE-2025-3937
📋 TL;DR
This vulnerability allows attackers to perform cryptanalysis on password hashes in Tridium Niagara Framework and Enterprise Security products. Attackers could potentially recover passwords due to insufficient computational effort in the hashing algorithm. This affects all systems running vulnerable versions of these products on Windows, Linux, or QNX operating systems.
💻 Affected Systems
- Tridium Niagara Framework
- Tridium Niagara Enterprise Security
📦 What is this software?
Niagara by Tridium
Niagara by Tridium
Niagara by Tridium
⚠️ Risk & Real-World Impact
Worst Case
Attackers successfully crack password hashes, gain unauthorized access to Niagara systems, and potentially compromise building automation/control systems.
Likely Case
Attackers with access to password hash databases could perform offline password cracking, leading to credential theft and unauthorized access.
If Mitigated
With strong, unique passwords and proper network segmentation, impact is limited even if hashes are obtained.
🎯 Exploit Status
Exploitation requires access to password hashes (typically through database access or memory dump). The actual cryptanalysis requires computational resources and time depending on password strength.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Niagara Framework and Enterprise Security versions 4.14.2u2, 4.15.u1, or 4.10u.11
Vendor Advisory: https://docs.niagara-community.com/category/tech_bull
Restart Required: Yes
Instructions:
1. Backup all Niagara configurations and databases. 2. Download the appropriate patched version from Tridium/Honeywell. 3. Stop all Niagara services. 4. Install the update following vendor documentation. 5. Restart services and verify functionality.
🔧 Temporary Workarounds
Enforce Strong Password Policy
allRequire complex, long passwords to increase computational effort for hash cracking
Network Segmentation
allIsolate Niagara systems from untrusted networks and limit access to necessary personnel only
🧯 If You Can't Patch
- Implement strict network access controls and firewall rules to limit exposure
- Enable multi-factor authentication where available and enforce password rotation policies
🔍 How to Verify
Check if Vulnerable:
Check Niagara version via web interface (Help > About) or command line: 'niagara info' on Linux/WindowsCheck Version:
On Windows: 'niagara info' or check registry. On Linux: 'niagara info' or check /opt/niagara/niagara-version.txtVerify Fix Applied:
Verify version is 4.14.2u2, 4.15.u1, or 4.10u.11 or later. Check that password hashing algorithm has been updated in security settings.📡 Detection & Monitoring
Log Indicators:
- Unusual authentication attempts
- Multiple failed login attempts from single source
- Database access logs showing hash extraction
Network Indicators:
- Unusual traffic to/from Niagara systems
- Port scanning targeting Niagara ports (4911, 1911, 80, 443)
SIEM Query:
source="niagara" AND (event_type="authentication_failure" OR event_type="database_access") | stats count by src_ip