CVE-2022-30315
📋 TL;DR
Honeywell Experion PKS Safety Manager controllers lack cryptographic authentication for control logic downloads via the Safety Builder protocol, allowing attackers to execute arbitrary code remotely. This affects all FSC and Safety Manager controllers regardless of software/firmware revision, potentially giving attackers full control similar to TRITON malware.
💻 Affected Systems
- Honeywell Experion PKS Safety Manager
- Honeywell FSC runtime (FSC-CPU, QPP)
- Honeywell Safety Builder
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of safety controllers allowing covert manipulation of industrial processes, implanting persistent malware, and causing physical damage or safety system failures.
Likely Case
Remote code execution leading to denial of service, unauthorized logic modifications, and potential safety system manipulation by attackers with network access.
If Mitigated
Limited impact if physical keyswitch protection is properly utilized and network segmentation prevents unauthorized access to Safety Builder protocol.
🎯 Exploit Status
Exploitation requires network access to Safety Builder protocol but no authentication. Attack pattern similar to TRITON malware capabilities.
🛠️ 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 in ICSA-22-207-02 and implement compensating controls.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Safety Manager controllers from untrusted networks and restrict access to Safety Builder protocol.
Physical Security Controls
allEnsure physical keyswitch is properly managed and only authorized personnel have access to controller programming mode.
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to block unauthorized access to Safety Builder protocol (typically port 102/TCP).
- Monitor for unauthorized Safety Builder protocol communications and implement physical security controls for controller access.
🔍 How to Verify
Check if Vulnerable:
Check if Honeywell Experion PKS Safety Manager or FSC controllers are deployed and accessible via Safety Builder protocol.Check Version:
Consult controller documentation or Honeywell technical support for version identification procedures.Verify Fix Applied:
Verify network segmentation prevents unauthorized access to Safety Builder protocol and physical security controls are implemented.📡 Detection & Monitoring
Log Indicators:
- Unauthorized Safety Builder protocol connections
- Unexpected control logic downloads or modifications
Network Indicators:
- Traffic to Safety Builder protocol (typically port 102/TCP) from unauthorized sources
- Anomalous control logic transfer patterns
SIEM Query:
source_ip NOT IN (authorized_engineering_stations) AND dest_port=102 AND protocol=TCP