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printf() tricks

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printf()

tricks

Prin'() tricks

Agenda

• ShiMing the stack pointer & arbitrary mem writes…

• … in order to exploit format string bugs without %n

• When is a NULL pointer not just a NULL pointer?

• …don’t expect prin'() & family to crash on NULL pointers

• These are just a few things I played with a while back

Download:

http://cdn03.exploit-db.com/wp-content/themes/exploit/docs/18577.pdf

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