Bluetooth Security Landscape
Bluetooth and Bluetooth Low Energy (BLE) are ubiquitous in enterprise environments: keyboards, mice, headsets, access badges, medical devices, and IoT sensors. Each represents a potential attack vector.
Key Vulnerabilities
BlueBorne (CVE-2017-1000251)
Remote code execution via Bluetooth without pairing:- Affects Android, iOS, Windows, Linux
- No user interaction required
- Wormable: can spread automatically
- Patched but legacy devices remain vulnerable
BLESA (BLE Spoofing Attack)
Exploits the BLE reconnection process:- Attacker impersonates a previously paired device
- Authentication bypass during reconnection
- Affects billions of BLE devices
KNOB (Key Negotiation of Bluetooth)
Forces a weak encryption key during pairing:- Reduces encryption key entropy to 1 byte
- Allows brute-force decryption of all traffic
- Affects Bluetooth BR/EDR connections
BLE Advertising Exploitation
- Tracking users via static BLE advertising addresses
- Spoofing BLE beacons for location manipulation
- Eavesdropping on unencrypted BLE communications
Enterprise Risks
Wireless Keyboards and Mice
- KeySniffer: Intercept unencrypted wireless keyboard traffic
- MouseJack: Inject keystrokes via wireless mouse receivers
- Range: Up to 100 meters with directional antenna
Access Control Systems
- Clone BLE-based access badges
- Relay attacks extending communication range
- Replay attacks using captured authentication sequences
Mitigation Strategies
- Keep firmware updated on all Bluetooth devices
- Disable Bluetooth when not in use
- Use BLE Secure Connections (LESC) mode
- Implement random MAC address rotation
- Monitor for unauthorized Bluetooth devices in sensitive areas
- Deploy Bluetooth monitoring for rogue device detection
Where SuperClue Fits
SuperClue does not assess Bluetooth devices or monitor Bluetooth activity. Its agents cover servers and endpoints over the network instead.