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Jetty Information Disclosure (CVE-2021-28164)
cve-2021 | Level: Easy | Total Lab Runs: 0 | Premium Lab |
Eclipse Jetty is a Java web server and Java Servlet container. While web servers are usually associated with serving documents to people, Jetty is now often used for machine to machine communications, usually within larger software frameworks.
Reference: https://en.wikipedia.org/wiki/Jetty_(web_server)
In this lab, we will learn how to exploit the information disclosure vulnerability (CVE-2021-28164) in the Jetty web server to pull the contents of the web.xml file.
Lab Environment
In this lab environment, the user is going to get access to a Kali GUI instance. A vulnerable instance of the Jetty web server is running the target machine. It can be accessed using the tools installed on Kali at demo.ine.local on port 8080.
Objective: Exploit the information disclosure vulnerability in the provided Jetty web server and retrieve the flag from the web.xml file.
Acknowledgements
The setup code is based on the following Github repository: https://github.com/vulhub/vulhub/tree/master/jetty/CVE-2021-28164
Instructions
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 target Jetty server should be located at the IP address 192.X.Y.3 on port 8080. It can be accessed using the hostname demo.ine.local.
Do not attack the gateway located at IP address 192.X.Y.1
| Verify: | ||
|---|---|---|
| 1. | Flag present in the 'web.xml' file |
|
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