CVE-2022-46901
📋 TL;DR
This vulnerability allows unauthenticated attackers to execute database operations and system tasks via a websocket interface in Vocera Report Server and Voice Server. It affects healthcare organizations using vulnerable versions of these systems, potentially compromising patient data and system integrity.
💻 Affected Systems
- Vocera Report Server
- Vocera Voice Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise including database destruction, data exfiltration, and unauthorized system task execution leading to service disruption and data loss.
Likely Case
Unauthorized database manipulation, data theft, or system disruption through backup/restore/clear operations.
If Mitigated
Limited impact if proper network segmentation and authentication controls prevent access to the vulnerable interface.
🎯 Exploit Status
The vulnerability description indicates unauthenticated access to database functions via websocket, suggesting straightforward exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 5.9 or later (based on typical patching patterns)
Vendor Advisory: https://www.stryker.com/us/en/about/governance/cyber-security/product-security/vocera-report-server-vulnerabilities--cve-2022-46898--cve-2022-4.html
Restart Required: Yes
Instructions:
1. Download the latest patch from Stryker's security portal. 2. Apply the patch following vendor instructions. 3. Restart the Vocera Report Server and Voice Server services. 4. Verify the update was successful.
🔧 Temporary Workarounds
Network Segmentation
linuxRestrict access to the Vocera Report Console websocket interface using firewall rules.
iptables -A INPUT -p tcp --dport [websocket_port] -s [trusted_ips] -j ACCEPT
iptables -A INPUT -p tcp --dport [websocket_port] -j DROP
Web Application Firewall
allDeploy a WAF to block unauthorized websocket connections to the vulnerable endpoint.
🧯 If You Can't Patch
- Implement strict network access controls to isolate Vocera servers from untrusted networks.
- Monitor websocket traffic for unauthorized database operation attempts and implement alerting.
🔍 How to Verify
Check if Vulnerable:
Check the Vocera Report Server and Voice Server version. If version is 5.0 through 5.8, the system is vulnerable.Check Version:
Check the administration console or system logs for version information (vendor-specific command not provided in CVE).Verify Fix Applied:
Verify the version is 5.9 or later and test that unauthenticated websocket connections to database functions are blocked.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated websocket connections to database functions
- Unexpected database backup/restore/clear operations
- System task execution from unauthenticated sources
Network Indicators:
- Websocket traffic to Vocera Report Console on unusual ports
- Database operation commands via websocket protocol
SIEM Query:
source="vocera*" AND (websocket OR database_operation) AND user="anonymous"🔗 References
- https://www.stryker.com/us/en/about/governance/cyber-security/product-security/
- https://www.stryker.com/us/en/about/governance/cyber-security/product-security/vocera-report-server-vulnerabilities--cve-2022-46898--cve-2022-4.html
- https://www.stryker.com/us/en/about/governance/cyber-security/product-security/
- https://www.stryker.com/us/en/about/governance/cyber-security/product-security/vocera-report-server-vulnerabilities--cve-2022-46898--cve-2022-4.html
