Can you still trust your network card? - Agence nationale de la ...

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Real impact Controlling the host OS dependent ◮ like all DMA-based attacks; ◮ need to get around IOMMU; ◮ need to find out where to read/write; ◮ need to trigger the code execution. ◮ for the proof of concept, we used Linux (because we know how it works); ◮ same would work for any other OS; ◮ nice trick, configure a new mac address on the NIC: 90:90:90:90:90:90. SGDSN/ANSSI – http://www.ssi.gouv.fr/trustnetworkcard 46/51
Real impact Controlling the host Demonstration What we do in the demo: ◮ write some code at address 0 to run a remote shell; ◮ hook ourselves into icmp rcv to jump at address 0; ◮ send a magic ping. SGDSN/ANSSI – http://www.ssi.gouv.fr/trustnetworkcard 47/51
Page 1 and 2: Can you still trust your network ca
Page 3 and 4: Impacts on security If an attacker
Page 5 and 6: What won’t be described today Thi
Page 7 and 8: Network interface controller The Ne
Page 9 and 10: Network interface controller The Ne
Page 11 and 12: Remote administration protocols ASF
Page 17 and 18: Remote administration protocols RMC
Page 19 and 20: Remote administration protocols RMC
Page 21 and 22: Remote administration protocols Sum
Page 23 and 24: Protocol analysis Protocol security
Page 25 and 26: Protocol analysis Implementation pr
Page 27 and 28: The vulnerability Instrumenting the
Page 37 and 38: The vulnerability Crash analysis Ch
Page 39 and 40: The vulnerability Crash analysis Ex
Page 41 and 42: The vulnerability Crash analysis St
Page 43 and 44: Real impact What can be done in the
Page 45: Real impact Controlling the host Us
Page 49 and 50: Real impact Controlling the host Co
Page 51: Real impact Controlling the host Qu

Can you still trust your network card? - Agence nationale de la ...

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