CVE-2024-33606
📋 TL;DR
This vulnerability in MicroDicom DICOM Viewer allows attackers to access, upload, or overwrite medical image files when user interaction is triggered. It affects healthcare organizations using this medical imaging software for viewing DICOM files. The vulnerability requires user interaction but poses significant data integrity and confidentiality risks.
💻 Affected Systems
- MicroDicom DICOM Viewer
📦 What is this software?
Dicom Viewer by Microdicom
⚠️ Risk & Real-World Impact
Worst Case
Attackers could exfiltrate sensitive patient medical images, plant fraudulent medical images that could lead to misdiagnosis, or overwrite legitimate medical records, potentially causing patient harm and regulatory violations.
Likely Case
Unauthorized access to medical images leading to patient data breaches and potential manipulation of medical records in healthcare environments.
If Mitigated
Limited impact with proper network segmentation, user awareness training, and access controls preventing unauthorized file operations.
🎯 Exploit Status
Requires user interaction but the file operations are straightforward once triggered. No public exploit code identified at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2024.2 or later
Vendor Advisory: https://www.microdicom.com/security-advisory
Restart Required: Yes
Instructions:
1. Download MicroDicom DICOM Viewer version 2024.2 or later from official website. 2. Close all instances of MicroDicom. 3. Run the installer. 4. Restart the system after installation completes.
🔧 Temporary Workarounds
Network Segmentation
allIsolate MicroDicom systems from untrusted networks and implement strict firewall rules.
User Privilege Reduction
windowsRun MicroDicom with limited user privileges to restrict file system access.
🧯 If You Can't Patch
- Implement application whitelisting to prevent unauthorized file operations
- Deploy endpoint detection and response (EDR) to monitor for suspicious file access patterns
🔍 How to Verify
Check if Vulnerable:
Check MicroDicom version via Help > About menu. If version is earlier than 2024.2, system is vulnerable.Check Version:
Not applicable - check via application GUI Help > AboutVerify Fix Applied:
Verify version is 2024.2 or later in Help > About menu and test file access controls.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns in MicroDicom logs
- Multiple failed or successful file operations from unexpected locations
Network Indicators:
- Unexpected outbound transfers of large image files
- Suspicious inbound connections to MicroDicom ports
SIEM Query:
source="MicroDicom" AND (event="FileAccess" OR event="FileWrite") AND (user NOT IN [authorized_users])