Transcription of Attacking Hypervisors via Firmware and Hardware
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Attacking Hypervisors via Firmware and Hardware
Attacking Hypervisors via Firmware and Hardware Mikhail Gorobets, Oleksandr Bazhaniuk, Alex Matrosov, Andrew Furtak, Yuriy Bulygin Advanced Threat Research Agenda Hypervisor based isolation Firmware rootkit vs hypervisor Attacking hypervisor emulation of Hardware devices Attacking Hypervisors through system Firmware Tools and mitigations Conclusions Hypervisor Based Isolation Image source Hypervisor Based Isolation Hardware I/O Memory Network Graphics VMM / Hypervisor System Firmware (BIOS, U/EFI Firmware , SMI handlers, ) CPU Privilege Virtual Machine Operating System App App Virtual Machine App App Operating System Hypervisor Based Isolation Hardware I/O Memory Network Graphics VMM / Hypervisor System Firmware (BIOS, U/EFI Firmware , SMI handlers, ) CPU Privilege Virtual Machine Operating System App App Virtual Machine App Attack Operating System Hypervisor Protections Software Isolation CPU / SoC: traps to hypervisor (VM Exits), MSR & I/O permissions bitmaps, rings (PV).
(with OS kernel access) Image source . Pointer Vulnerabilities in SMI Handlers Phys Memory SMI Handlers in SMRAM ... • Windows 10 enables path for firmware deployment via Windows Update ... Attacking and Defending BIOS in 2015 by Intel ATR 4. Hardware Involved …
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