- Lab
- Security
Validate User Input for Java Applications
In this lab, you’ll practice securing Java applications. When you’re finished, you’ll have implemented countermeasures to protect Java code from buffer overflow and insecure deserialization.
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
Identifying and Mitigating Buffer Overflows via JNI
In this challenge, you will explore Java Native Interface (JNI) security risks by identifying buffer overflows in native C code, triggering the vulnerability, and implementing mitigations using ArrayList, StringBuilder, and ByteBuffer.
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Challenge
Identifying and Mitigating Insecure Deserialization
In this challenge, you will exploit an insecure deserialization vulnerability in a Java application. Afterwards, you will implement a secure fix using Apache Commons IO to prevent the attack.
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Challenge
Knowledge Check for Validate User Input for Java
Assess your understanding of JNI buffer overflows and insecure deserialization based on the hands-on labs. Answer the multiple-choice questions to test your grasp of core vulnerabilities and defenses.
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.