SANS Holiday Hack Challenge 2020: Objective 9— ARP Shenanigans

Each year, the SANS and Counter Hack Challenges teams put together my favorite capture the flag (CTF) competition, the SANS Holiday Hack Challenge. The 2020 SANS Holiday Hack Challenge, featuring KringleCon 3: French Hens! was held at Santa’s newly renovated castle at the North Pole from December 10, 2020 to January 11, 2021. This is a walk-through for an objective from the event.

Objective 9) Go to the NetWars room on the roof and help Alabaster Snowball get access back to a host using ARP. Retrieve the document at…