Two views of Bluetooth security Different security modes Security mechanisms on the host side Linux and HCI sniffing Bluetooth security in action Looking at the BlueSnarf attack Bluetooth architecture Application specific security mechanisms Bluetooth host security mechanisms Security mechanisms on the Bluetooth chip Bluetooth security • Link manager security • All security routines are inside the Bluetooth chip • Nothing is transmitted in “plain text” • Host stack security Interface for link manager security routines Part of the HCI specification Easy interface No further encryption of pin codes or keys Security modes • Security mode 1 • No active security enforcement
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The security mechanisms Known vulnerabilities Tools that are used Live demonstration Who is investigating Adam Laurie CSO of The Bunker Secure Hosting Ltd. DEFCON staff and organizer Maintainer of the Linux Bluetooth stack Marcel Holtmann Martin Herfurt
Security researcher Founder of trifinite.org What is this about What is Bluetooth Bluetooth SIG Trade association Founded 1998 Owns and licenses IP Bluetooth technology A general cable replacement Using the ISM band at 2.4 GHz Protocol stack and application profiles How it works Data and voice transmission ACL data connections SCO and eSCO voice channels Piconet and scatternet topology Frequency hopping 79 channels 1600 hops per second Creating the topology Hopping sequence defines the piconet
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The 15-inch PowerBook G4 offers the ideal balance of portability and power. Key Features Thin and light. At just over an inch thin and 5.6 pounds, 1 the gorgeous aluminum design is sleek and durable. Performance architecture. A PowerPC G4 processor up to 1.25GHz, DDR SDRAM up to 2GB, and a fast ATI mobile graphics processor deliver phenomenal performance. Advanced wireless. With built-in antennas and an optional AirPort Extreme Card, you”re ready for superfast wireless networking. 2 Integrated Bluetooth technology delivers cable-free connections to PDAs and mobile phones. Leading digital connections. USB 2.0, FireWire 800, and Gigabit Ethernet provide the fastest-possible data connections to your peripherals and networks. SuperDrive.
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