- Lab
- Security
CVE-2025-24813 Apache Tomcat Remote Code Execution: Emulation and Detection
In this lab, you’ll practice vulnerability management by researching, assessing, testing, and mitigating an emerging threat. When you’re finished, you’ll be able to re-create an attack scenario, detect it, and apply fixes to mitigate its impact.
Path Info
Table of Contents
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Challenge
Getting Started in the Lab Environment
Here are the initial instructions and explanation of the lab environment. Read this while your environment is busy creating itself from nothing. Yes, this violates physics; we know. How fun!
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Challenge
Emulate
You'll generate a serialized Java payload that executes a command of your choosing, upload it to Tomcat using a partial PUT request, and then force the payload to be deserialized and execute on the Tomcat server—achieving remote code execution.
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Challenge
Detect
You'll investigate if you have been compromised by reviewing web server logs, searching for unexpected .war files, and checking file modification times in the webapps directory.
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Challenge
Protect
You'll modify Tomcat’s configuration to ensure that sensitive areas of the server are read-only and that partial PUT requests are disabled.
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Challenge
The Last Challenge
Welcome to the final challenge! This is your last chance to experiment in the environment. Clicking Finish Lab will end this little world that flittered into existence just for you.
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.
Provided environment for hands-on practice
We will provide the credentials and environment necessary for you to practice right within your browser.
Guided walkthrough
Follow along with the author’s guided walkthrough and build something new in your provided environment!
Did you know?
On average, you retain 75% more of your learning if you get time for practice.