HACKvent 2021 Write-up

Hackvent 2021 is over!
Once again, this year’s Hackvent was terrific – even though it was uncertain until the start whether it would take place at all. Eventually, the event was a traditional, full-blown Hackvent! Thanks to all challenge contributors who made this possible. I especially loved both Blockchain challenges, the binary exploitation on day 14, and the reverse engineering challenge on day 22. Less pleasant was the fact that some challenges were very resource-intensive this year. Some challenges took several hours of computing time on my laptop.
This year I did manage to complete all the challenges. Unfortunately, not all of them within 24 hours to get the total score. I submitted the flag for three challenges late (day 10, 17, and 19). And like every year, I liked the discussions around the CTF very much. Shouts to ice, jokker, ludus, DrSchottky, and all other participants.

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