Hexordia Weekly CTF - iOS - Week 3 - That’s a lot of Hiking

What’s the total elevation?

• Points: 15

Solution

• The owner of the iPhone went to skiing, we can find this out if we check the pictures taken with the phone (/private/var/mobile/Media/DCIM/100APPLE)
• There is a picture (IMG_0028.HEIC) of a “statue” showing the different mountains and their elevations in the area at /private/var/mobile/Media/DCIM/100APPLE/IMG_0028.HEIC

• By adding the elevations together, we can get the flag

  10568
+ 12313
+ 13010
+ 11570
+ 12998
+ 10700
-------
  71159

• To be honest, this challenge was for from intuitive. I’ve search all location information on the phone (Health, Apple Pay, Location Tracking, EXIF information (geolocation)) without luck.

Flag: 71159