Wendell Crenshaw Technologies presents

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All Your BasebandAre Belong To Usover-the-air exploitation of memory corruptions in GSM software stacksRalf-Philipp WeinmannLaboratory for Algorithmics, Cryptology & Computer SecurityUniversity of Luxembourghttps://cryptolux.org
Outline GSM / Smartphone basics Baseband software (in)security Practicality of exploitation Demo Scenarios for the “baseband apocalypse” Disclosure, outlook & conclusions
Page 2: Wendell CrenshawTechnologiespresent
Page 8 and 9: Part I: GSM and smartphone basics
Page 10 and 11: Layers of the GSM Um interfaceConne
Page 12 and 13: Dominant Smartphone archsvs.Applica
Page 14 and 15: Baseband market shares 3Q2009Qualco
Page 16 and 17: Baseband (in)security• Code base
Page 18 and 19: Layers of the GSM Um interfaceConne
Page 20 and 21: Where to look for bugs• Layer 1 n
Page 22 and 23: Initial TargetsImage credit: Yutaka
Page 24 and 25: An example (in QCOM codebase)• GS
Page 26 and 27: Baseband Exploitation• Baseband:
Page 28 and 29: Part III: Practicality
Page 30 and 31: • Siemens BS11• used byOpenBSC
Page 32 and 33: Our gear:EttusUSRPv1• price: appr
Page 34 and 35: Common failures (my experience)•
Page 36 and 37: Part V: The Baseband Apocalypse
Page 40 and 41: Is there still hope for the paranoi
Page 42 and 43: Part VI: Disclosure, outlook,conclu
Page 44 and 45: Outlook• Will see same problems f

Wendell Crenshaw Technologies presents

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