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Correct return address?
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Classroom Contents
IDS Evasion Design Tricks for Buffer Overflow Exploits
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- 1 Intro
- 2 Brief reminder
- 3 Simple illustration
- 4 Mismanaged bounds check
- 5 Size restrictions?
- 6 250 bytes example
- 7 Another design concept
- 8 Double injection
- 9 How to find descriptor
- 10 "Might" be possible?
- 11 Correct return address?
- 12 Pop another frame
- 13 Situation #1 illustrated
- 14 Calculate return address
- 15 Function calls
- 16 Why do they look like this?
- 17 Clean return requirement
- 18 Server
- 19 Initial injection
- 20 First payload
- 21 Find socket descriptor
- 22 Using the socket
- 23 Second payload
- 24 Still using the same socket
- 25 Finding return address
- 26 Code
- 27 Restore internal registers
- 28 Summary
- 29 Benefits
- 30 IDS Countermeasures
- 31 Other countermeasures
- 32 Questions?
