ELF x86: Format string bug basic 1
root-me challenge: … or how to read through the stack.
Environment configuration:
PIE Position Independent Executable No
RelRO Read Only relocations No
NX Non-Executable Stack No
ASLR Address Space Layout Randomization No
SF Source Fortification No
SSP Stack-Smashing Protection No
SRC Source code access Yes
Source code:
#include <stdio.h>
#include <unistd.h>
int main(int argc, char *argv[]){
FILE *secret = fopen("/challenge/app-systeme/ch5/.passwd", "rt");
char buffer[32];
fgets(buffer, sizeof(buffer), secret);
printf(argv[1]);
fclose(secret);
return 0;
}