Dockerized Spring4Shell (CVE-2022-22965) PoC application and exploit

This is a dockerized application that is vulnerable to the Spring4Shell vulnerability (CVE-2022-22965). Full Java source for the war is provided and modifiable, the war will get re-built whenever the docker image is built. The built WAR will then be loaded by Tomcat. There is nothing special about this application, it’s a simple hello world that’s based off Spring tutorials.

Details: https://www.lunasec.io/docs/blog/spring-rce-vulnerabilities

Requirements

1. Docker
2. Python3 + requests library

Instructions

1. Clone the repository
2. Build and run the container: docker build . -t spring4shell && docker run -p 8080:8080 spring4shell
3. App should now be available at http://localhost:8080/helloworld/greeting

4. Run the exploit.py script:
   python exploit.py --url "http://localhost:8080/helloworld/greeting"

5. Visit the created webshell! Modify the

    

    

    

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