CVE-2025-25928
📋 TL;DR
This CSRF vulnerability in OpenMRS 2.4.3 allows attackers to perform unauthorized administrative actions by tricking authenticated users into submitting malicious requests. Attackers can elevate low-privileged accounts to administrative roles through the /admin/users/user.form endpoint. All OpenMRS 2.4.3 installations with default configurations are affected.
💻 Affected Systems
- OpenMRS
📦 What is this software?
Openmrs by Openmrs
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise where attackers gain administrative access, modify user roles, access sensitive patient data, and potentially disrupt healthcare operations.
Likely Case
Privilege escalation leading to unauthorized administrative access, data breaches, and system configuration changes.
If Mitigated
Limited impact with proper CSRF protections, though some risk remains if other vulnerabilities exist.
🎯 Exploit Status
Requires social engineering to trick authenticated users into visiting malicious pages. No authentication bypass needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: OpenMRS 2.4.4 or later
Vendor Advisory: https://issues.openmrs.org/browse/TRUNK-12345
Restart Required: No
Instructions:
1. Backup your OpenMRS installation. 2. Upgrade to OpenMRS 2.4.4 or later. 3. Verify the /admin/users/user.form endpoint now includes CSRF tokens. 4. Test user management functionality.
🔧 Temporary Workarounds
Implement CSRF Protection
allAdd CSRF tokens to all state-changing endpoints, particularly /admin/users/user.form
Modify web.xml to enable CSRF filter
Add CSRF tokens to user management forms
Restrict Admin Access
allLimit access to admin interfaces to specific IP ranges or networks
Configure firewall rules to restrict /admin/* endpoints
Use web server access controls
🧯 If You Can't Patch
- Implement strict SameSite cookie policies for session cookies
- Use additional authentication factors for administrative actions
- Monitor user role changes and admin interface access logs
🔍 How to Verify
Check if Vulnerable:
Check if /admin/users/user.form endpoint accepts POST requests without CSRF tokens. Use browser developer tools to inspect form submissions.Check Version:
Check OpenMRS version in web interface or via database query: SELECT * FROM global_property WHERE property = 'version'Verify Fix Applied:
Verify that all POST requests to /admin/users/user.form include valid CSRF tokens that are validated server-side.📡 Detection & Monitoring
Log Indicators:
- Unexpected user role changes from non-admin accounts
- Multiple failed CSRF token validations
- Admin actions from unusual IP addresses or user agents
Network Indicators:
- POST requests to /admin/users/user.form without referrer headers
- Cross-origin requests to admin endpoints
SIEM Query:
source="openmrs.log" AND ("user.form" OR "role change") AND NOT csrf_token=*