Kali Linux

Spring4Shell-POC : Dockerized Spring4Shell (CVE-2022-22965) PoC Application And Exploit

Spring4Shell-POC 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.

Requirements

  • Docker
  • Python3 + requests library

Instructions

  • Clone the repository
  • Build and run the container: docker build . -t spring4shell && docker run -p 8080:8080 spring4shell
  • App should now be available at http://localhost:8080/helloworld/greeting
  • Run the exploit.py script: python exploit.py --url "http://localhost:8080/helloworld/greeting"
  • Visit the created webshell! Modify the cmd GET parameter for your commands. (http://localhost:8080/shell.jsp by default)
R K

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