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Exploit Demo for CVE-2017-5638

Completely based on https://github.com/piesecurity/apache-struts2-CVE-2017-5638

Usage:

Pre-requisites: have python, docker, maven and a jdk installed

  1. clone this repo
  2. run ./mvnw clean package in project root
  3. run docker build -t hack .
  4. run docker run -d -p 8080:8080 hack a. If 8080 is in use, map to an open port e.g. -p 8888:8080
  5. once container comes online - verify by running in browser

To begin testing RCE - run the exploit.py file.

  1. python exploit.py http://myserver:8080/orders/3 "CMD"

Try with different CMDs like

  • pwd - where are we?
  • whomai - what user are we running this?
  • ls -la - what's in my directory?
  • ls / - what's my machine
  • ls /etc - what else we can find?

How to Fix!

Use the Nexus Lifecycle Component Information Panel to identify a non-vulnerable version of struts2-core. Update the POM to that version and rebuild.You can also rebuild the docker image and run it to retry the attack.

Also, look in the Issues here to see DepShield findings

Original readme

=========================================================================== README.txt - Rest Showcase Webapp

Rest Showcase is a simple example of REST app build with the REST plugin.

For more on getting started with Struts, see

I18N:

Please note that this project was created with the assumption that it will be run in an environment where the default locale is set to English. This means that the default messages defined in package.properties are in English. If the default locale for your server is different, then rename package.properties to package_en.properties and create a new package.properties with proper values for your default locale.