Completely based on https://github.com/piesecurity/apache-struts2-CVE-2017-5638
A realistic scenario where a reference project for a framework is deployed on a container but with terrible consequences. To familiarise yourself look at the code and compile it. Also investigate the dockerfile - does anything specific rise to get our attention?
Shows how easily every day decisions and multiple vulnerabilities in chain can be leveraged.
Pre-requisites:
To prepare:
./mvnw clean package
in project rootdocker build -t hackme \.
docker run -d -p 9080:8080 hackme
Notice: if you don't have Docker installed, you can run ./mvnw jetty:run
To begin testing RCE - run the exploit.py
file:
python exploit.py http://localhost:9080/orders/3 "CMD"
java -jar jython*.jar exploit.py http://localhost:9080/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 machinels /etc
- what else we can find?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
https://github.com/apache/struts/tree/master/apps/rest-showcase
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
* http://cwiki.apache.org/WW/home.html
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.