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Not One Jmp Esp Suitable
Posted 25 October 2010 - 01:57 AM
I have found a buffer overflow in a program and overwritten eip. However when i overwrite eip with a jmp esp it never succeeds due to bad characters changing into F3. I have tried every single jmp esp i can find and none of them are sutable. What else can one do in situtaions like this?
Posted 26 October 2010 - 05:44 AM
I will look into it some more but for now i can explain that overwriting eip with 0xdeadbeef it comes out as access violation when executing abadbeef? dont know how the de changes to ab ?
Identify the bad char's first of all.
Plus I would need to see some output to answer more.
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