Hackvent 2019: Day 19

20 Dec 2019
CTF: Hackvent 2019
Link to challenge:
Date Completed: 19 December 2019


HV19.19 ?


We see a bunch of emoji and immediately think its EmojiCode!
Initially we want to play around with the code so we go and enter in our code.

Upon running our code we get a prompt and entering random input crashes our program to panick and crash:

Amazingly, based on the prompt alone of Santa being confused around a lock emoji (?) , I decide to try the key emoji (?) as input.
This actually gave me the flag making the time to completion only 8 minutes!
Unintended but I’ll take it.

Flag:  HV19{*<|:-)____\o/____;-D}

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