CVE-2020-10292
📋 TL;DR
CVE-2020-10292 is an unauthenticated denial-of-service vulnerability in Visual Components robotic simulation software's network license server. Attackers can send specially crafted UDP packets to port 5093 to crash the license service, potentially disrupting factory simulations and integrated industrial processes. Organizations using Visual Components with network licensing are affected.
💻 Affected Systems
- Visual Components robotic simulation software
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete disruption of robotic simulation capabilities leading to production line downtime in integrated industrial environments, potentially combined with information disclosure or code execution via related vulnerabilities.
Likely Case
Temporary denial of simulation services requiring license server restart, disrupting planning and testing workflows.
If Mitigated
Minimal impact if license server is isolated from untrusted networks and proper network segmentation is implemented.
🎯 Exploit Status
Exploitation requires sending crafted UDP packets to port 5093. Can be combined with RVDP#710 and RVDP#711 for more severe attacks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check with KUKA/Visual Components for specific patched versions
Vendor Advisory: https://www.visualcomponents.com/
Restart Required: Yes
Instructions:
1. Contact Visual Components/KUKA support for patch availability. 2. Apply vendor-provided updates to license server. 3. Restart RMS Sentinel license manager service. 4. Verify service is running on restricted interfaces only.
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to UDP port 5093 using firewall rules
# Windows: netsh advfirewall firewall add rule name="Block VC License" dir=in action=block protocol=UDP localport=5093
# Linux: iptables -A INPUT -p udp --dport 5093 -j DROP
Service Binding Restriction
allConfigure license server to bind to specific interfaces instead of 0.0.0.0
🧯 If You Can't Patch
- Implement strict network access controls to limit UDP 5093 traffic to trusted hosts only.
- Monitor license server for crashes and implement automated restart procedures.
🔍 How to Verify
Check if Vulnerable:
Check if RMS Sentinel service is listening on UDP port 5093: netstat -an | findstr :5093 (Windows) or ss -ulpn | grep :5093 (Linux)Check Version:
Check Visual Components and RMS Sentinel version information in application or via vendor documentation.Verify Fix Applied:
Verify service no longer crashes when receiving malformed UDP packets on port 5093 and confirm binding to restricted interfaces.📡 Detection & Monitoring
Log Indicators:
- RMS Sentinel service crash logs
- Unexpected license server restarts
- Failed license validations
Network Indicators:
- Unusual UDP traffic to port 5093 from untrusted sources
- Malformed UDP packets to port 5093
SIEM Query:
source_port=5093 AND (packet_size>normal OR protocol_violation) OR process_name="sentinel" AND event_type="crash"