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Document type:
Konferenzbeitrag 
Contribution type:
Textbeitrag / Aufsatz 
Author(s):
Müller, Kevin and Münch, Daniel and Isfort, Ole and Paulitsch, Michael and Sigl, Georg 
Title:
Decreasing System Availability on an Avionic Multicore Processor Using Directly Assigned PCI Express Devices 
Abstract:
In this paper we investigate security properties of the I/O Memory Management Units (IOMMUs) implemented in a multicore processor being a representative platform for future avionic systems. Freescale's P4080 is considered as such a candidate. On this platform we show an attack that can be performed by an (untrusted) driver accessing an interruptcapable Direct Memory Access (DMA) device. Our demonstrated attack bases on a weakness of the implemented IOMMU for Peripheral Component...    »
 
Keywords:
attack, embedded systems, PowerPC, IOMMU, MSI 
Dewey Decimal Classification:
620 Ingenieurwissenschaften 
Book / Congress title:
EUROSEC 2013 
Congress (additional information):
Prag 
Year:
2013 
Year / month:
2013-04 
Month:
Apr