Exploit Exercises - Protostar Stack 6
The Stack6 challenge was definitely a learning experience for me. This actually went beyond my existing skills, and made me learn some new stuff.
We are given the following code.
#include <stdlib.h> #include <unistd.h> #include <stdio.h> #include <string.h> void getpath() { char buffer[64]; unsigned int ret; printf("input path please: "); fflush(stdout); gets(buffer); ret = __builtin_return_address(0); if((ret & 0xbf000000) == 0xbf000000) { printf("bzzzt (%p)\n", ret); _exit(1); } printf("got path %s\n", buffer); } int main(int argc, char **argv) { getpath(); } The first thing I tried to do, was to set it up just like I did on Stack 5.
