CVE-2020-16216
📋 TL;DR
This vulnerability in Philips IntelliVue patient monitors allows attackers to cause denial-of-service through system restarts by sending malformed input that isn't properly validated. It affects multiple IntelliVue monitor models and X2/X3 versions, potentially disrupting critical patient monitoring in healthcare settings.
💻 Affected Systems
- IntelliVue MX100
- IntelliVue MX400-550
- IntelliVue MX600
- IntelliVue MX700
- IntelliVue MX750
- IntelliVue MX800
- IntelliVue MX850
- IntelliVue MP2-MP90
- IntelliVue X2
- IntelliVue X3
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Critical patient monitoring disruption during medical procedures, potentially leading to delayed clinical interventions if monitors restart unexpectedly.
Likely Case
Temporary monitoring interruption requiring manual restart of affected devices, causing workflow disruption for healthcare staff.
If Mitigated
Minimal impact with proper network segmentation and monitoring, with quick recovery through device restart procedures.
🎯 Exploit Status
The advisory suggests unauthenticated exploitation is possible via network input. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after N (contact Philips for specific version information)
Vendor Advisory: https://www.philips.com/productsecurity
Restart Required: Yes
Instructions:
1. Contact Philips Healthcare support for firmware updates. 2. Schedule maintenance window for device updates. 3. Apply firmware updates following Philips documentation. 4. Verify device functionality post-update. 5. Document update completion.
🔧 Temporary Workarounds
Network Segmentation
allIsolate patient monitors on dedicated medical device VLANs with strict access controls
Network Monitoring
allImplement network monitoring and intrusion detection for medical device networks
🧯 If You Can't Patch
- Implement strict network segmentation to isolate patient monitors from general hospital networks
- Deploy network monitoring with alerting for unusual traffic patterns to/from medical devices
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via device menu: System Information > Software Version. Compare against Philips advisory.Check Version:
Navigate device menu: Menu > System Information > Software Version (device-specific menu navigation)Verify Fix Applied:
Verify firmware version is updated beyond version N via device System Information menu and confirm no unexpected restarts occur during monitoring.📡 Detection & Monitoring
Log Indicators:
- Unexpected device restarts
- System log entries indicating abnormal input processing
- Network connection drops followed by device reboots
Network Indicators:
- Unusual network traffic patterns to medical device IPs
- Multiple connection attempts to device ports
- Malformed packets sent to patient monitor IP addresses
SIEM Query:
source="medical_device_logs" AND (event_type="unexpected_restart" OR event_type="system_reboot")