CVE-2019-9863
📋 TL;DR
This vulnerability allows attackers to predict valid rolling codes used by ABUS Secvest wireless alarm systems, enabling unauthorized remote control of alarm systems. Affected users include anyone using ABUS Secvest FUAA50000 version 3.01.01 with FUBE50014 or FUBE50015 remote controls.
💻 Affected Systems
- ABUS Secvest wireless alarm system FUAA50000
- ABUS Secvest remote control FUBE50014
- ABUS Secvest remote control FUBE50015
📦 What is this software?
Secvest Wireless Alarm System Fuaa50000 Firmware by Abus
View all CVEs affecting Secvest Wireless Alarm System Fuaa50000 Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Attackers can remotely disable alarm systems, disarm security zones, trigger false alarms, or prevent legitimate alarm activation, potentially enabling physical intrusion without detection.
Likely Case
Attackers can disarm alarm systems to facilitate burglaries or other unauthorized access to secured premises.
If Mitigated
With proper network segmentation and physical security controls, impact is limited to alarm system manipulation without broader network compromise.
🎯 Exploit Status
Exploitation requires proximity to capture rolling codes (within wireless range), but no authentication or special privileges needed. Attack tools have been demonstrated publicly.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Contact ABUS for updated firmware
Vendor Advisory: https://www.abus.com/security-advisory
Restart Required: Yes
Instructions:
1. Contact ABUS support for firmware update. 2. Download updated firmware from ABUS portal. 3. Apply firmware update to alarm system via management interface. 4. Replace or update remote controls as directed by vendor.
🔧 Temporary Workarounds
Physical security enhancement
allImplement additional physical security layers to compensate for vulnerable alarm system
Wireless signal monitoring
allDeploy wireless intrusion detection to monitor for suspicious RF activity near alarm systems
🧯 If You Can't Patch
- Replace vulnerable alarm system and remote controls with updated models
- Implement secondary alarm systems using different technology (wired systems, different vendors)
🔍 How to Verify
Check if Vulnerable:
Check system firmware version in alarm system management interface. If version is 3.01.01, system is vulnerable.Check Version:
Check via alarm system management interface (no CLI command available)Verify Fix Applied:
Verify firmware version has been updated to a version later than 3.01.01 and test alarm functionality with updated remote controls.📡 Detection & Monitoring
Log Indicators:
- Multiple failed disarm attempts
- Unusual disarm patterns
- Alarm system state changes without authorized user activity
Network Indicators:
- Unusual RF signal patterns in 868MHz band
- Repeated rolling code transmissions from unknown sources
SIEM Query:
Not applicable - primarily physical/embedded system without network logging