All challenges
Linux
Left Behind
EasyLinux lab
A Linux machine boots in your browser; you land as player. There's no root to win here — just careless housekeeping.
Someone left backups lying around. Find what's world-readable, open the archive, and recover the secret inside. That secret is your flag.
The VM has no network and can't touch anything outside your browser tab.
This challenge has a lab
The lab runs entirely in your browser and contains your own personal flag.
Sign in to launch the labSubmit the flag
Sign in or create an account to submit flags.
Hints
Unlocking a hint deducts its cost from your score.
- Hint 1· 40 points
- Hint 2· 60 points
Write-up
Solve the challenge to read how it works.