On October 21, 2022, the Escuela de CTFs@UZ held its second CTF (Capture The Flag) event, the first CTF in the course 2022/2023. As usual, it was a 3-hour hacking event in which participants had to solve technical challenges that required knowledge from various disciplines. The participants had to cooperate in teams of up to 2 members, although individual teams were also allowed. Both types of teams performed quite well!
The event was a success from our point of view. In the second iteration of the event, we had a total of 6 teams and 11 participants. During the event itself we all enjoyed the experience of facing and solving problems (both the participants and the organization!).
We prepared a series of entry-level, beginner-friendly challenges for our participants to solve.
During the competition, we published 22 challenges spread across various categories such as: Binary Exploitation, Web, Networking, Forensics, OSINT, Crypto, Steganography, and Misc.
Ignore the fact that it says 26 challenges, we did not release all of them
Five challenges remained unsolved at the end of the competition. The challenge with the most solutions was Me leí las normas pero bien (Web category), while the challenge with the fewest solutions was No grill?. There were 165 flag submissions, 60 of them were correct.
The winning team was LrM.
The second place was Death by Numbers
The prizes for the 1st and 2nd team of this CTF were awarded on February 3, 2023, in the second session of “Escuela de CTFs@UZ”.
1st place prize: 1 BTC, based on gold market transactions and NASDAQ prospection. 
2st place prize: 1 BTC, based on silver market transactions and IBEX35 prospection. 
From the organization we want to thank all the participants who have enjoyed as much as we did during the execution of this CTF. We look forward to the next one! Keep hacking!