[io.smashthestack.org] level01

level1@io:/levels$ gdb -q level01

Reading symbols from /levels/level01...(no debugging symbols found)...done.

(gdb) disas main

Dump of assembler code for function main:

   0x08048080 <+0>: push   $0x8049128

   0x08048085 <+5>: call   0x804810f <puts>

   0x0804808a <+10>: call   0x804809f <fscanf>

   0x0804808f <+15>: cmp    $0x10f,%eax

   0x08048094 <+20>: je     0x80480dc <YouWin>

   0x0804809a <+26>: call   0x8048103 <exit>

End of assembler dump.

(gdb) p 0x10f

$1 = 271

(gdb) q

level1@io:/levels$ ./level01

Enter the 3 digit passcode to enter: 271

Congrats you found it, now read the password for level2 from /home/level2/.pass

sh-4.2$ whoami

level2

level05 까지는 딱히 풀이가 없으니 대충 넘어가도 될듯