IMPORTANT:AttackDefense Labs is included with a Pentester Academy subscription! Upgrade Now to access over 1800+ Labs.

Already a Pentester Academy student? Your access will continue uninterrupted. Please use the same Google account to login here.

Not a Pentester Academy student? Try our Free Communitiy Labs

Open Distro for Elasticsearch SSRF - CVE-2021-31828

cve-2021 | Level: Easy  | Total Lab Runs: 0 | Premium Lab

Lab Scoreboard

The Open Distro project bundled open source distributions of Elasticsearch and Kibana with Apache-2.0-licensed plugins that gave users enterprise-grade features, security, and analytics tools. In the two years since it launched, builders all over the world have used Open Distro to power their applications.

Open source Elasticsearch and Kibana 7.10.2 will soon be end of life, and are no longer receiving active development, security patches, or bugfixes. All users should be running software that receives timely security patches. The OpenSearch project was launched to provide a path forward for open source Elasticsearch and Open Distro users that ensures they always have access to security and new innovation.


In mid-2021, a security researcher, Rotem Bar discovered an SSRF vulnerability in the ODFE versions until

In this lab environment, the user is going to get access to a Kali GUI instance (http://attacker.ine.local). A Kibana dashboard is deployed on http://kibana.ine.local:5601. An Elasticsearch instance is deployed on http://elasticsearch.ine.local:9200.

Note: The vulnerable ODFE plugin is installed for Kibana and Elasticsearch.

Objective: Exploit the SSRF vulnerability in the ODFE's Alerting plugin!


  • This lab is dedicated to you! No other users are on this network :) 

  • Once you start the lab, you will have access to a root terminal of a Kali instance

  • Your Kali has an interface with IP address 192.X.Y.Z. Run "ip addr" to know the values of X and Y.

  • The Kibana instance should be located at the IP address 192.X.Y.3 over port 5601. 

  • The Elasticsearch instance should be located at the IP address 192.X.Y.4 over port 9200. 

  • Do not attack the gateway located at IP address 192.X.Y.1

The following activities are strictly prohibited on this website unless otherwise explicitly stated as allowed in the mission statement:

  • Using automated scanners
  • Using brute force attacks
  • Denial of Service attacks
  • Attacking other student machines in challenges where you might achieve a shell on the vulnerable system
  • Attacking the lab infrastructure

Users violating the above will be either temporarily or permanently banned from the website. 

If you are unsure about an activity, then please contact support to confirm that it is allowed on our website.

Technical Support for this Lab:

There is a reason we provide unlimited lab time: you can take as much time as you need to solve a lab. However, we realize that sometimes hints might be necessary to keep you motivated!

We currently provide technical support limited to:

  • Giving hints for a lab exercise
  • In rare circumstances, if you have totally given up (NO!!!) then tell you how to solve it. This will be limited to sharing the solution video or lab report
  • A lab exercise fails to load or has errors in it

If you need technical support, please email  clearly mention the name and link of the lab exercise and other essential details. The more descriptive you are, the faster we can help you. We will get back to you within 24 hours or less. 

For adminitrative queries, billing, enterprise accounts etc. please email