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Challenges with Intel PT
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Classroom Contents
Enforcing Unique Code Target Property for Control-Flow Integrity
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- 1 Intro
- 2 Control-flow attack is getting harder
- 3 Control-flow attack is still possible
- 4 Example: control-flow attack
- 5 Example: control-flow integrity
- 6 Unique code target property
- 7 Challenges with Intel PT
- 8 Which data is necessary?
- 9 UCFI - perform efficient analysis path reconstruction from PT trace is slow!
- 10 Implementation
- 11 Security - enforcing unique target
- 12 Security - preventing attacks
- 13 Efficiency - performance overhead
- 14 Efficiency - memory&code overhead
- 15 Efficiency - trace size reduction
- 16 Discussion - backward-edge CFI
- 17 Conclusion: UCFI
- 18 Discussion - difference from CPI
