Hacking the Fast Lane: security issues in p, DSRC and WAVE
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1 Hacking the Fast Lane: security issues in p, DSRC and WAVE Bruno Gonçalves de Oliveira Rob Havelt
2 THIS IS NOT A USER-MODE CALLBACK TO RING0 PRESENTATION
3 Agenda - Acronyms - Overview - Supposed to do - Protocol Stack - WAVE - What is defined by IEEE - Attacks Scenarios
4 whoami BIO SpiderLabs:~ Trustwave$ whois BrunoGO - Computer Engineer; - Security certs, - Security Consultant at Trustwave s Spiderlabs in the Network Penetration Testing Team - 9+ years on information security field; - Previously talk at SOURCE Barcelona 2010 (Spain), DEF CON 18 (USA), HITBSec Conf 2009 (Malaysia), ToorCon X (USA), YSTS 2.0/3.0, H2HC IV/VI (Brazil), among others. - Just accepted for BlackHat DC.
5 What are ALL these acronyms? WAVE (Wireless Access in Vehicular Environments Mode used by devices to run in the DSRC band DSRC (Dedicated Short Range Communications) Name of 5.9Ghz band IEEE p Based on ASTM Standard E
6 Overview
7 What it is purposed (mainly) Electronic Tolls Emergency Vehicles
8 Protocol Stack
9 WAVE Wireless Access in Vehicular Environments Defined by IEEE Architecture Resource Manager Security Services for App Networking Services Multi-Channel Operations
10 Architecture
11 WAVE Wireless Access in Vehicular Environments - Architecture RSU Road Side Unit A wireless access in vehicular environments (WAVE) device that operates only when stationary and supports information exchange with onboard units (OBUs). OBU Onboard Unit A wireless access in vehicular environments (WAVE) device that can operate when in motion and supports information exchange with roadside units (RSUs) and other OBUs.
12 WAVE Wireless Access in Vehicular Environments - Architecture Onboard Unit (OBU) DSRC Device
13 WAVE Wireless Access in Vehicular Environments - Architecture
14 Resource Manager
15 WAVE Wireless Access in Vehicular Environments Resource Manager The external interfaces: Resource Manager Application (RMA) Resource Manager (RM) Resource Command Processor (RCP)
16 WAVE Wireless Access in Vehicular Environments Resource Manager
17 Channel
18 WAVE Wireless Access in Vehicular Environments - Channel Channel Allocation for WAVE Seven 10 Mhz Channels Data Rates for WAVE (Mbits) 3, 4.5, 6, 9, 12, 18, 24, 27 Modulations BPSK OFDM, QPSK OFDM, 16-QAM OFDM, 64-QAM OFDM
19 WAVE Wireless Access in Vehicular Environments - Channel
20 WAVE Wireless Access in Vehicular Environments - Channel Setting-up WAVE Mode: Channel scan disabled Channel Mbps data rate Receives any mandatory data rate
21 Network
22 WAVE Wireless Access in Vehicular Environments - Network Can work in 2 ways WAVE Short Message Protocol (WSMP) IPv6
23 WAVE Wireless Access in Vehicular Environments - Network WAVE Short Message Protocol (WSMP)
24 WAVE Wireless Access in Vehicular Environments - Network WAVE Basic Service Set (WBSS) A set of two or more WAVE devices participating in communications among each other on a SCH. A WBSS is initiated by a WAVE device using a WAVE Announcement action frame on the CCH. It s used like an access-point!
25 WAVE Wireless Access in Vehicular Environments - Network
26 Security
27 WAVE Wireless Access in Vehicular Environments - Security Authenticate messages (certificate issued by the vendor) Encrypt confidential data Messages must be short and transactions fast
28 Attacks Scenarios
29 Attacks Scenarios Impersonate It s not identified by MAC (or any hw specification) Use the same certificate (should worth a test) DoS When systems are working on WSMP, waiting short messages. Physical Attacks Tracking Information (parking systems - cheats)
30 Attack Scenarios Eavesdropping - What is unencrypted? - Any message CAN be unencrypted - JUST the data field is encrypted, the packet is still available
31 Attack Scenarios - Eavesdropping How? USRP (Universal Software Radio Peripheral) ( GNU Radio (Framework for creation of software defined radios) Maybe something on BH DC ;)
32 That s it! Thanks! No questions please! ;)
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