Question regarding Buffer Overflow

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n0xhack3r
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Question regarding Buffer Overflow

Post by n0xhack3r »

Dear, I was trying to exploit an application over linux, and I was fuzzing it, and the scripy used yield that it crashed at 50X bytes (x is a variable here); now when I try to replicate the crash, it works, but EIP is not written, although I checked the code and it is stack based attack; so I decided to decrease the number of bytes to 30X and then it worked totally fine, and the EIP was written; does anyone have a clue to why this happened ??
Thanks for your kind support

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ayu
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Re: Question regarding Buffer Overflow

Post by ayu »

It depends on what version of the application you are using as well, if the version is different from the one used by the exploit script, the byte offset can differ by a few bytes when the application was recompiled and re-released.

What application and exploit are you playing with?
"The best place to hide a tree, is in a forest"

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