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hi everybody iamp;#39;m razvi welcome back to boon 101 series in this video we are going to solve the eighth binary from the poon 101 try hack me room in order to do so we are going to see and understand how we can abuse a format string vulnerability so as to write arbitrary values into memory this time instead of just leaking memory contents we are actually overwriting it specifically we are going to see how we can abuse the n format specifier from the printf family of functions in order to overwrite got or gut entries so let us get right into it it is a 64-bit executable that determines the size of the registers and the addressing or wording of the cpu which in this case both are 8 bytes long and it also defines the calling convention this binary will use remember in 64-bit executables the 6 first parameters of the functions are passed via registers and the rest of them via the stack we can also see there are canaries present on the stack that means that in case we want to overflow
