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Complimentary

Install the free app and it hands your phone a set of cloud keys, the same set it hands everyone. They're read-only, but read-only of every guest's contacts, location, and passwords, not just Lambo's. She gave consent. Technically.

easy

60 min

230

User profile photo.
User profile photo.
User profile photo.

To access material, start machines and answer questions login.

Score updated
Score updated

 
 
 
Hacker Holidays ยท The Byte Lotus Hotel
Complimentary
  ๐Ÿš  
๐Ÿš
 
 
 
 
 
 
๐ŸŒด
๐ŸŒด
๐Ÿฅฅ
๐Ÿฅฅ
๐Ÿฆ
๐Ÿน
 
Points
60
Category
โ˜๏ธ Cloud
Difficulty
Easy
 
๐Ÿ›Ž๏ธ Concierge Briefing

Lambo installed the Byte Lotus Wellness app the day she arrived โ€” it was free, it had great reviews (written by the app, but she didn't check), and it got her a tote bag for saying yes to camera, mic, contacts, and location access. No account needed. No login screen. It justโ€ฆ knows things about you the moment you open it.

That's the whole pitch: โ€œcomplimentaryโ€ access, no friction, no sign-up. Something still has to be deciding what you're allowed to see, even without a login โ€” and whatever that something is, it isn't checking very carefully.

Your objective: find out how the app knows anything about you at all, and see what else it's willing to hand over.

๐Ÿ—๏ธ ROOM ACCESS
Target
://complimentary-wellness-app-332173347248.-website-us-east-1.amazonaws.com/
๐Ÿ–๏ธ TODAY'S ITINERARY
 Track down the mechanism issuing you credentials behind the scenes.
 Use those credentials to dump more than your own record from the app's DynamoDB table.
 Retrieve the flag from another guest's data.
๐Ÿ“ธ @0xMia's STORY
  @0xMia ยท posted 40 min after room unlock

"okay wait, the wellness app never once asked me to log in and it STILL knew my name when I opened it ๐Ÿ’€ something has to be quietly handing it access behind the scenes... if you find whatever that something is, don't just check what it gives YOU. ask it for more ๐Ÿ‘€"

Cloud Cognito Misconfiguration
Answer the questions below

What is the flag?