CVE-2022-26389
📋 TL;DR
An improper access control vulnerability in Hillrom ELI Resting Electrocardiograph devices allows attackers to escalate privileges on affected medical devices. This affects multiple ELI and BUR series electrocardiograph models running vulnerable firmware versions, potentially compromising patient data and device functionality.
💻 Affected Systems
- ELI 380 Resting Electrocardiograph
- ELI 280/BUR280/MLBUR 280 Resting Electrocardiograph
- ELI 250c/BUR 250c Resting Electrocardiograph
- ELI 150c/BUR 150c/MLBUR 150c Resting Electrocardiograph
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing unauthorized access to patient health data, manipulation of diagnostic results, or disruption of medical device operations.
Likely Case
Unauthorized access to device settings, patient data extraction, or limited privilege escalation within the device ecosystem.
If Mitigated
Minimal impact with proper network segmentation, access controls, and monitoring in place.
🎯 Exploit Status
Requires network access to vulnerable devices and knowledge of device communication protocols.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Contact Hillrom for specific patched versions for each device model
Vendor Advisory: https://hillrom.com/en/responsible-disclosures/
Restart Required: No
Instructions:
1. Contact Hillrom technical support for firmware updates. 2. Schedule maintenance window for each affected device. 3. Apply firmware update following manufacturer instructions. 4. Verify update completion and functionality.
🔧 Temporary Workarounds
Network Segmentation
allIsolate electrocardiograph devices on separate VLANs with strict access controls
Access Control Lists
allImplement firewall rules to restrict device communication to authorized systems only
🧯 If You Can't Patch
- Segment devices on isolated network segments with no internet access
- Implement strict access controls and monitor all device network traffic
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via device settings menu or Hillrom management softwareCheck Version:
Device-specific: Use device interface or Hillrom management tools to check firmware versionVerify Fix Applied:
Verify firmware version is updated beyond vulnerable ranges listed in affected systems📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to device management interfaces
- Unexpected firmware version changes
- Unusual network connections to device ports
Network Indicators:
- Unusual traffic patterns to/from electrocardiograph devices
- Attempts to access device management ports from unauthorized sources
SIEM Query:
source_ip IN (device_ips) AND (port=management_port OR protocol=unusual) AND NOT dest_ip IN (authorized_management_ips)