My writeup for the National Cyber Scholarship Competition 2021
We’re sure there’s a flag at cfta-fe02.allyourbases.co - can you find it?
This gives a URL, which when visited returns a DNS error (the current version of the challenge has a webpage that says you should look elsewhere). My first instinct was to run nslookup on the domain, which returns nothing useful. Since it was giving a DNS error I thought the challenge must be related to DNS, so I ran nslookup -type=txt to query DNS text records. This returned the following:
$ nslookup -type=txt cfta-fe02.allyourbases.co
Server: 172.31.160.1
Address: 172.31.160.1#53
Non-authoritative answer:
cfta-fe02.allyourbases.co text = "flag=unlimited_free_texts"
Authoritative answers can be found from: