Topic created on: June 13, 2010 13:28 CDT by voila .

hello there ..

I m research on ftp server using ftp fuzzer . I found that it throughs an exception(ACCESS_VOILATION) , on instruction
mov [esi],di .. here esi=0x3030000 .. so it is unable to write value of dl at this memory address ..

My question is .. how can i come to know that .. value in register "esi" is affected by my fuzzers data .. Becuase if it is affected by my fuzzer data .. then i can write value at dl at an arbitary memory address , then definitly it is vulnerability . :) ...

I hope you understand my question .. i m new here so plz be soft if u ask sometihng very basic :)

Thanks in advance :)