HITCON CTF 2017 Quals

Ragnarok - Pwn [384 pts] [Not Solved]

From shreds of shattered altars

To rear the Perfect Fane.

Our little heaps must perish

That Heap I himself shall reign!

note: The service is running on ubuntu 17.10

nc 13.114.157.154 4869

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ragnarok.zip

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Ragnarok

I found that there is no write-up on this problem at https://ctftime.org/task/4848 Try this problem to get the solution.