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workshop-bsidesmunich2018's Introduction

Workshop-ARM BSidesMunich2018

ARM shellcode and exploit development

Workshop topics

ARM Architecture

  • ARM CPU
  • Registers
  • Instructions
  • PC-relative addressing
  • Calling convention and Stack frames

LAB1 - Debugging on ARM system

Shellcode

  • syscalls
  • Shell spawning shellcode (ARM/Thumb) + LAB2
  • Bind TCP shellcode (ARM) + LAB3
  • Reverse shell shellcode (ARM)

Exploit

  • Tools introduction (pwntools, ROPGadget)
  • Modify the value of a local variable (stack1) + LAB4
  • Vulnerability mitigations
  • Ret to libc - Bypass NX and execute a shell with a single ROP gadget (stack_sh) + LAB5
  • Bypass NX with ROP using mprotect (stack_mprotect) + LAB6
  • ASLR
  • Bypassing NX and ASLR (stack_aslr) + LAB7

Enviroment

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Contributors

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Watchers

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