CVE-2023-32133
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code by tricking users into opening malicious J2K image files in Sante DICOM Viewer Pro. The flaw is an out-of-bounds write during J2K file parsing that can lead to remote code execution. Users of Sante DICOM Viewer Pro who open untrusted medical imaging files are affected.
💻 Affected Systems
- Sante DICOM Viewer Pro
📦 What is this software?
Dicom Editor by Santesoft
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the affected system, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Local privilege escalation leading to user account compromise, data exfiltration, or installation of persistent malware on the affected workstation.
If Mitigated
Limited impact if proper application sandboxing, least privilege principles, and network segmentation are implemented, potentially containing the exploit to the application context.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious file, but the vulnerability is memory corruption-based with reliable exploitation patterns.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched version
Vendor Advisory: https://www.santesoft.com/security-advisories
Restart Required: Yes
Instructions:
1. Visit SanteSoft official website
2. Download latest version of Sante DICOM Viewer Pro
3. Install the update following vendor instructions
4. Restart the application and system if required
🔧 Temporary Workarounds
Disable J2K file association
windowsRemove file association for .j2k/.jp2 files with Sante DICOM Viewer to prevent automatic opening
Control Panel > Default Programs > Associate a file type or protocol with a program > Select .j2k/.jp2 > Change program > Choose different application
Application sandboxing
windowsRun Sante DICOM Viewer in restricted environment using application control solutions
🧯 If You Can't Patch
- Implement strict file validation policies to block untrusted J2K files at network perimeter
- Deploy endpoint detection and response (EDR) solutions with memory protection capabilities
🔍 How to Verify
Check if Vulnerable:
Check Sante DICOM Viewer Pro version against vendor's patched version listCheck Version:
Open Sante DICOM Viewer Pro > Help > About to view version informationVerify Fix Applied:
Verify application version matches or exceeds patched version from vendor advisory📡 Detection & Monitoring
Log Indicators:
- Application crashes with memory access violations
- Unusual process creation from Sante DICOM Viewer
- Failed file parsing attempts for J2K files
Network Indicators:
- Downloads of J2K files from untrusted sources
- Outbound connections from Sante DICOM Viewer to suspicious IPs
SIEM Query:
Process: 'SanteDICOMViewer.exe' AND (EventID: 1000 OR EventID: 1001) AND ExceptionCode: 0xc0000005