Finally Rooted. Here’re my hints:
Initial hole:
- Enumeration is the very beginning step before doing anything.
- Try to use some different wordlist and you’ll find the door(1).
- The door(1) (Hint: What a teacher do in an exam) seems to be closed. Try to use some other METHOD to enter and find the door(2).
- Google is your best friend. It can give you the CVE. However you cannot use the script directly to break the door(2), you need to modify it to find the keys.
- Inside the wall, you need to modify the script to bypass some censorships. Try harder, and then, you enter the room.
User/ROOT:
- Basic enumeration will show you something odd. Google it.
- Root dance.
Honestly, PE in the WALL was rather annoying, because I thought it should have been something tricky. However, it’s stupidly simple and easy. All you need is just to enumerate some basic information and google it. The first result is the key?♂️