ELK Kali Purple

Install elasticsearch

• sudo apt update && sudo apt upgrade
• sudo bash -c "export HOSTNAME=purple.cyber.local; apt-get install elasticsearch -y"

take note of "elastic" user password

Example

The generated password for the elastic built-in superuser is : Wb-6=0u*y4OJDDSkHYza

Reset

You can complete the following actions at any time:

Reset the password of the elastic built-in superuser with 
'/usr/share/elasticsearch/bin/elasticsearch-reset-password -u elastic'.

Generate an enrollment token for Kibana instances with 
 '/usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s kibana'.

Generate an enrollment token for Elasticsearch nodes with 
'/usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s node'.

Convert to single-node setup (or replace fqdn name in initial_master_nodes list with IP address)

• sudo sed -e '/cluster.initial_master_nodes/ s/^#*/#/' -i /etc/elasticsearch/elasticsearch.yml
• echo "discovery.type: single-node" | sudo tee -a /etc/elasticsearch/elasticsearch.yml

Install Kibana

• sudo apt install kibana
• sudo /usr/share/kibana/bin/kibana-encryption-keys generate -q

Add keys to /etc/kibana/kibana.yml

• echo "server.host: \"kali-purple.kali.purple\"" | sudo tee -a /etc/kibana/kibana.yml

Ensure kali-purple.kali.purple is only mapped to 192.168.253.5 in /etc/hosts in order to bind Kibana to that interface

• sudo systemctl enable elasticsearch kibana --now

Enroll Kibana

• sudo /usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s kibana

#open browser and navigate to http://192.168.253.5:5601 enter username=elastic and password as displayed after installation paste token from above

• sudo /usr/share/kibana/bin/kibana-verification-code

#enter verification code into Kibana when prompted

Enable HTTPS for Kibana

• sudo /usr/share/elasticsearch/bin/elasticsearch-certutil ca
• sudo /usr/share/elasticsearch/bin/elasticsearch-certutil cert --ca elastic-stack-ca.p12 --dns kali-purple.kali.purple,elastic.kali.purple,kali-purple --out kibana-server.p12
• sudo openssl pkcs12 -in /usr/share/elasticsearch/elastic-stack-ca.p12 -clcerts -nokeys -out /etc/kibana/kibana-server_ca.crt
• sudo openssl pkcs12 -in /usr/share/elasticsearch/kibana-server.p12 -out /etc/kibana/kibana-server.crt -clcerts -nokeys
• sudo openssl pkcs12 -in /usr/share/elasticsearch/kibana-server.p12 -out /etc/kibana/kibana-server.key -nocerts -nodes
• sudo chown root:kibana /etc/kibana/kibana-server_ca.crt
• sudo chown root:kibana /etc/kibana/kibana-server.key
• sudo chown root:kibana /etc/kibana/kibana-server.crt
• sudo chmod 660 /etc/kibana/kibana-server_ca.crt
• sudo chmod 660 /etc/kibana/kibana-server.key
• sudo chmod 660 /etc/kibana/kibana-server.crt

• echo "server.ssl.enabled: true" | sudo tee -a /etc/kibana/kibana.yml
• echo "server.ssl.certificate: /etc/kibana/kibana-server.crt" | sudo tee -a /etc/kibana/kibana.yml
• echo "server.ssl.key: /etc/kibana/kibana-server.key" | sudo tee -a /etc/kibana/kibana.yml
• echo "server.publicBaseUrl: \"https://kali-purple.kali.purple:5601\"" | sudo tee -a /etc/kibana/kibana.yml

• sudo /usr/share/kibana/bin/kibana-encryption-keys generate

#Copy the generated keys into /etc/kibana/kibana.yml

• sudo systemctl restart kibana

Links

• https://gitlab.com/kalilinux/kali-purple/documentation/-/wikis/301_31:-Elastic-Stack-Installation