Redis in the wild

Description

In order to evaluate your OSINT skills, we hid a server on the internet!

All we share is the following things:

Our server is located in Frankfurt and belongs to DigitalOcean. Our server has been indexed in shodan. Our server is running a Redis service that contains the flag by the key "flag"

Your mission is to figure out and find our server, and then submit the flag!

Solution

This one was pretty simple.

Search Shodan for 'org:"DigitalOcean" city:Frankfurt Redis flag"'.

The only result is:

Connect to the server and request the flag: