CVE-2024-22811
📋 TL;DR
This vulnerability allows attackers to cause a Denial of Service (DoS) in Tormach xsTECH CNC routers by overwriting the Hostmot2 configuration cookie in device memory, disrupting communication between the PathPilot controller and CNC router. This affects industrial manufacturing environments using Tormach xsTECH CNC routers with PathPilot Controller v2.9.6.
💻 Affected Systems
- Tormach xsTECH CNC Router
- PathPilot Controller
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete disruption of CNC router operations leading to production downtime, potential equipment damage if operations are interrupted during critical machining processes, and financial losses from halted manufacturing.
Likely Case
Temporary DoS causing CNC router to become unresponsive, requiring manual intervention to restart the system and resume operations, resulting in production delays.
If Mitigated
Limited impact with proper network segmentation and access controls preventing unauthorized access to the controller network.
🎯 Exploit Status
The vulnerability involves overwriting a specific memory location (configuration cookie) which is a straightforward attack once the attacker has network access to the controller.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Monitor Tormach security advisories for updates.
🔧 Temporary Workarounds
Network Segmentation
allIsolate CNC router and PathPilot controller networks from general corporate networks to limit attack surface.
Access Control Lists
allImplement strict network access controls to only allow authorized devices to communicate with the PathPilot controller.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate CNC equipment from other networks
- Monitor network traffic to/from PathPilot controllers for anomalous patterns
🔍 How to Verify
Check if Vulnerable:
Check PathPilot Controller version via system settings or command line. If version is 2.9.6, system is vulnerable.Check Version:
Check PathPilot system information in controller interface or consult system documentation for version checking.Verify Fix Applied:
No official fix available. Monitor for updated versions from Tormach.📡 Detection & Monitoring
Log Indicators:
- Unexpected communication disruptions between PathPilot and CNC router
- System restart events following network anomalies
Network Indicators:
- Unusual network traffic patterns to PathPilot controller port 23 (Telnet) or other management ports
- Multiple connection attempts to CNC controller from unauthorized sources
SIEM Query:
source="PathPilot" AND (event="communication_error" OR event="system_restart") OR dest_ip="CNC_controller_ip" AND protocol="telnet" AND count>threshold