Description
As you pass through customs, the customs officer asks you to hand over your phone and its unlock code. The phone is returned to you a few hours later…
Suspicious, you send your phone to ANSSI’s CERT-FR for analysis. CERT-FR analysts carry out a collection on the phone, consisting of a sysdiagnose and a backup.
To start with, find some information of interest about the phone: iOS version and phone model identifier.
The flag is in the format FCSC{<model identifier>|<build number>}
. For example, for an iPhone 14 Pro Max running iOS 18.4 (22E240): FCSC{iPhone15,3|22E240}
.
This challenge is part of a serie. The challenges are independent, except iBackdoor 2/2
whitch depends on iBackdoor 1/2
:
Files
-
backup.tar.xz
31.36 MiB – f7e00e4979573e09f582bebb2a64d5daa0ad6151ca7f6971beabbfaa81b400ce -
sysdiagnose_and_crashes.tar.xz
199.10 MiB – 9a7cc0ee4032bc74d2c162562691594fa772f4f57090b7cc72b6efa0e88582cc
Author

Flag
Submit your solution
You can submit your writeup for this challenge. Read the FAQ to learn how to proceed.
You need to be logged in to submit a writeup.
Writeups
There are no public solutions for this challenge yet, but you can submit yours after getting the flag.