Uiuctf 2021

tablet 1

Solved by : thewhiteh4t

• we are given an iPad image in this challenge
• goal was to find a server where the data was exfiltrated
• so a guess was that I will find a server and flag will be present on it

• following this theory I looked for the string uiuc.tf because thats the domain being used in all remote based challenges

  grep -rni “uiuc.tf” .

• this is a Sqlite3 database file
• I found SSH private key and other login info required for login

• SSH login ssh -i id_rsa red@red.chal.uiuc.tf -p 42069

• the private key is encrypted and the password is actually : ****

• but on login I got a message that service allows only SFTP connections, so I tried logging in with SFTP

• unlike most ctf challenges flag was not available after login so I downloaded .bash_history using get command

• and in this location I found a JPG image…

uiuctf{upload_task_only_takes_9_seconds_0bf79b}