Install
Install ruby, bundler and rails. https://gorails.com/setup/ubuntu/16.04
Install redis-server and nmap.

sudo apt-get update
sudo apt-get install redis-server nmap

Clone HellRaiser repository, change to hellraiser web app directory and run bundle install.

git clone https://github.com/m0nad/HellRaiser/
cd HellRaiser/hellraiser/
bundle install

Start
Start redis server.

redis-server

Go to the hellraiser web app directory and start sidekiq.

bundle exec sidekiq

Go to the hellraiser web app directory and start rails server.

rails s

Usage
Access http://127.0.0.1:3000

How it works?
HellRaiser scan with nmap then correlates cpe's found with cve-search to enumerate vulnerabilities.