CVE-2022-30313
📋 TL;DR
Honeywell Experion PKS Safety Manager lacks authentication on proprietary protocols, allowing unauthenticated attackers to manipulate controller state, configuration, logic, files, and I/O. Affected systems include Honeywell Experion PKS Safety Manager installations using Experion TCP (51000/TCP) and Safety Builder (51010/TCP) protocols through May 6, 2022.
💻 Affected Systems
- Honeywell Experion PKS Safety Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of industrial safety systems leading to process disruption, equipment damage, or safety incidents through unauthorized controller manipulation.
Likely Case
Unauthorized access to controller configurations and logic, potentially enabling industrial espionage or preparation for future attacks.
If Mitigated
Limited impact if physical keyswitch protection is properly utilized and network segmentation prevents protocol access.
🎯 Exploit Status
Direct protocol communication without authentication makes exploitation straightforward for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.cisa.gov/uscert/ics/advisories/icsa-22-207-02
Restart Required: No
Instructions:
No official patch available. Follow vendor guidance and implement compensating controls.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Safety Manager systems in dedicated network segments with strict access controls.
Firewall Rules
allBlock external access to ports 51000/TCP and 51010/TCP at network perimeter.
🧯 If You Can't Patch
- Implement strict network segmentation and zero-trust architecture around Safety Manager systems
- Deploy industrial intrusion detection systems monitoring for protocol anomalies on ports 51000 and 51010
🔍 How to Verify
Check if Vulnerable:
Check if Honeywell Experion PKS Safety Manager is installed and if ports 51000/TCP or 51010/TCP are accessible.Check Version:
Check system documentation or contact Honeywell support for version information.Verify Fix Applied:
Verify network segmentation prevents access to affected ports and monitor for unauthorized connection attempts.📡 Detection & Monitoring
Log Indicators:
- Unauthorized connection attempts to ports 51000/TCP or 51010/TCP
- Unexpected controller state changes or configuration modifications
Network Indicators:
- Traffic to/from ports 51000/TCP or 51010/TCP from unauthorized sources
- Protocol anomalies in Experion TCP or Safety Builder communications
SIEM Query:
source_port:51000 OR source_port:51010 OR destination_port:51000 OR destination_port:51010