~/talk

For The Win: The Art Of The Windows Kernel Fuzzing

Talkat HITBSecConf 2019 Amsterdam · 2019-05-06..05-10· [security]
links:none on file
slides:none on file

A kernel fuzzing framework targets Windows kernel objects — GDI and menu/cursor objects — by enumerating API functions with WinDbg, scripting create/operate/destroy sequences, and feeding randomized operation arrays to monitored VMs. Over a year it produces ~10–20 crashes with reproducible POCs including 3–4 Use‑After‑Free and a few race/logic bugs. The tool combines QEMU/KVM + symbolic execution to reach deep branches, needs CPU virtualization and ~4GB memory, and yields a working exploit that escalates a normal user to local SYSTEM escape.

AI-written summary · about

  1. 0:00Introduction
  2. 1:01About the speaker
  3. 2:06Windows kernel objects
  4. 5:34Fuzzing framework basics
  5. 7:34Targeting functions
  6. 13:19Fuzzing results
  7. 15:41Next-gen fuzzing system
  8. 23:23Symbolic execution
  9. 26:39Heap overflow demo
  10. 35:20Windows kernel exploit
  11. 36:59TDI object isolation
  12. 44:07Summary and future work
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