hxp CTF 2020

2020

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kuraberu

by kirschju
zahjebischte rev

Difficulty estimate: medium - medium

Points: round(1000 ยท min(1, 10 / (9 + [7 solves]))) = 625 points

Description:

Help. Something happened to my license key while I was testing my most recent flag generator.

Figure 1: Me Inadvertently Sabotaging a Shiny Program

Could you please investigate where I messed up?

Note: The flag follows the usual format. Remove any NULL bytes there might be.


Download:

kuraberu-b1bf5c9364971f30.tar.xz (40.2 MiB)

Solution:


CTFtime Logo CTFtime: Task & Writeups

Solved by:

# Team Time
kuraberu released 2020-12-19 10:06:06 +0000 UTC
๐Ÿฅ‡ r00timentary 2020-12-19 13:28:00 +0000 UTC
๐Ÿฅˆ pasten 2020-12-19 14:00:29 +0000 UTC
๐Ÿฅ‰ ALLES! 2020-12-19 21:10:01 +0000 UTC
4 Tasteless 2020-12-20 10:29:58 +0000 UTC
5 RedRocket 2020-12-20 13:03:30 +0000 UTC
6 sf 2020-12-20 13:43:05 +0000 UTC
7 Dragon Sector 2020-12-20 14:47:21 +0000 UTC