CVE-2025-27955
📋 TL;DR
Clinical Collaboration Platform 12.2.1.5 has a session token vulnerability where logout doesn't invalidate tokens, allowing attackers to hijack sessions. This enables unauthorized access to sensitive clinical data and potential remote code execution. Healthcare organizations using this specific version are affected.
💻 Affected Systems
- Clinical Collaboration Platform
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise via remote code execution leading to patient data exfiltration, system manipulation, or ransomware deployment.
Likely Case
Unauthorized access to sensitive clinical information and patient records through session hijacking.
If Mitigated
Limited impact with proper network segmentation and monitoring detecting token misuse attempts.
🎯 Exploit Status
Exploit requires obtaining a valid session token, which can be captured via various means including token leakage in URLs.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Contact Carestream for patch availability
2. If patch exists, download from vendor portal
3. Apply patch following vendor instructions
4. Test in non-production environment first
🔧 Temporary Workarounds
Implement Session Invalidation
allForce server-side session invalidation on logout
Requires code modification: Implement proper session destruction on logout endpoint
Network Segmentation
allRestrict access to vulnerable system
firewall rules to limit access to trusted IPs only
🧯 If You Can't Patch
- Implement web application firewall with session fixation protection
- Enable detailed logging of session activities and monitor for anomalous token usage
🔍 How to Verify
Check if Vulnerable:
Test logout functionality: 1. Login to system 2. Capture session token 3. Logout 4. Attempt to use captured token to access protected resourcesCheck Version:
Check system version in admin panel or via vendor documentationVerify Fix Applied:
After fix: 1. Login and capture token 2. Logout 3. Verify token no longer provides access to protected endpoints📡 Detection & Monitoring
Log Indicators:
- Multiple session tokens from same user
- Session tokens used after logout events
- Unusual access patterns with old tokens
Network Indicators:
- Session tokens in URL parameters
- Repeated authentication attempts with same token
SIEM Query:
source="clinical-platform" AND (event="logout" OR event="session_invalid") | stats count by user, session_id | where count > 1