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OverTheWire Advent Bonanza 2019 – Easter Egg 2

  • Category: fun
  • Points: 10

Challenge

Easter Egg 2

Service: https://advent2019.overthewire.org

Author: EasterBunny

Solution

Opening a challenge modal window, you can find a strange response HTTP header returned when https://advent2019.overthewire.org/static/fonts/roboto/Roboto-Bold.woff2 file is downloaded.

EasterEgg2.png

x-easteregg2: ==QftRHdz8VZydmZuNzXhJ3MxcGMltnSHJkT

Reversing the string.

TkJHSntlMGcxM3JhXzNuZmdyZV8zdHRtfQ==

Base64 decoding.

NBGJ{e0g13ra_3nfgre_3ttm}

Using ROT13.

AOTW{r0t13en_3aster_3ggz}