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

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Protocol analysis Implementation problems Implementation problems (2/2) Username ◮ specifications limit the size to 16 chars, without NULL; ◮ the username size is coded using a 1 byte field. What if we don’t play nice? ◮ ”the card crashes”; ◮ the host can only send Ethernet frames but not receive them. What did exactly happen? SGDSN/ANSSI – http://www.ssi.gouv.fr/trustnetworkcard 26/51
The vulnerability Instrumenting the card Proof of concept ◮ Is the vulnerability serious? ◮ What are the direct and indirect consequences? ◮ How can we build a proof of concept? Speaker switch SGDSN/ANSSI – http://www.ssi.gouv.fr/trustnetworkcard 27/51
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: Protocol analysis Implementation pr
Page 29 and 30: 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 and 46: Real impact Controlling the host Us
Page 47 and 48: Real impact Controlling the host De
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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