Damn-vulnerable-sca

SCA Goat
Navigating SCA Vulnerabilities, Empowering Mastery

What is SCA-Goat?

SCAGoat is an application for Software Composition Analysis (SCA) that focuses on vulnerable and compromised JAR dependencies used in development code, providing users with hands-on learning opportunities to understand potential attack scenarios. It is designed to identify vulnerabilities that may arise from using vulnerable JAR files.

⚠️ WARNING: Educational Purpose Only ⚠️

This project contains deliberately vulnerable and malicious code for educational purposes. The xz-java-malicious package included in this project simulates a compromised library and should NEVER be used in production environments. This package is designed solely for training security professionals and for evaluating SCA tools.

Presented at:

• DC32: Demo Labs
• Appsec Village: Arsenal
• Blackhat Europe 2024
• Blackhat Asia 2025

What All CVE Covered?

The CVEs covered under SCAGoat are primarily critical and high severity, which have a CVSS score of 9. This aid in understanding the vulnerable package being used and its potential for exploitation.

In addition, there is one compromised package, that lacks a CVE, but is malicious by nature and cannot be detected with traditional SCA scanners.

Steps to run SCAGoat

Step 1. Clone the application

git clone https://github.com/harekrishnarai/Damn-vulnerable-sca.git

Step 2. Go to the Directory

cd Damn-vulnerable-sca

Step 3. Use the following docker commands to build the image for the dockerfile and run the image to access the application:

docker compose up

Step 4. Visit http://localhost:3000/ to access the nodejs application and http://localhost:8080 for Springboot for log4j

Compiling and Installing the Malicious XZ-Java Package Locally

To ensure SCAGoat functions correctly for training and SCA tool evaluations, you’ll need to compile and install the xz-java-malicious package locally:

1. Navigate to the xz-java-malicious directory:

cd xz-java-malicious

2. Compile and install the package to your local Maven repository:

mvn clean install

3. Verify the installation:

mvn dependency:tree

4. After successful installation, add the malicious package to your .m2 repo by running following command

mvn install:install-file \
  -Dfile=target/xz-java-1.9.2.jar \
  -DgroupId=org.tukaani \
  -DartifactId=xz \
  -Dversion=1.9.2-malicious \
  -Dpackaging=jar

5. Return to the main project directory:

cd ..

6. Now you can run the full application with docker compose as mentioned above.

Important Notes:

• The malicious package is deliberately designed to be undetectable by some SCA tools, making it an excellent training tool.
• This package doesn’t contain actual harmful code but simulates patterns of compromised libraries.
• Use in isolated, educational environments only.

SCA Goat HomePage

Vulnerability Dashboard

SCAGoat features an interactive vulnerability dashboard that allows users to explore and understand different types of vulnerabilities:

• Marked (CVE-2017-16114): Cross-Site Scripting vulnerability in the Markdown parser
• Trim-Newlines (CVE-2021-33623): Regular Expression Denial of Service vulnerability
• Lodash (CVE-2019-10744): Critical prototype pollution vulnerability with CVSS 9.8
• Jackson-Databind (CVE-2020-9547): Deserialization vulnerability in the backend
• XZ-Java (Malicious): Compromised library demonstration
• WebSocket (CVE-2020-13935): Spring WebSocket vulnerability
• Log4j (CVE-2021-44228): Log4Shell vulnerability demonstration
• Pug (CVE-2019-8331): Denial of Service vulnerability in the template engine
• Dot-Prop (CVE-2020-8116): Prototype pollution vulnerability allowing property manipulation

Each vulnerability includes an interactive demo to help security professionals, developers, and students understand how these vulnerabilities work and how they can be exploited.

What’s Coming?

Our aim is to provide you with a better understanding of vulnerable packages and JAR dependencies so that you can gain hands-on experience. We will keep you updated with the latest CVEs. Stay tuned!

Tutorials to exploit the vulnerability:

SCA Scan Reports

• Link to SCAGoat Scan Reports
• Detailed Dependency Check Tool Report

UI Enhancements

The SCAGoat application features a modern, responsive UI with the following features:

• Interactive vulnerability dashboard with informative cards
• Dark mode interface with particle.js background
• Detailed information about each vulnerability including CVSS scores
• Real-time demonstration of exploits
• Mobile-friendly responsive design

Want to contribute?

Awesome! The most basic way to show your support is to star the project or raise issues.

Contributors

Thanks to all the people who already contributed!
Prashant Venkatesh
Nandan Gupta
Hare Krishna Rai
Henrik Plate
Gaurav Joshi
Yoad Fekete