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LightBulb Framework is an open source python framework for auditing web application firewalls and filters.
LightBulb Framework Synopsis
The framework consists of two main algorithms:
- GOFA: An active learning algorithm that infers symbolic representations of automate in the standard membership/equivalence query model.
Active learning algorithms permits the analysis of filter and sanitizer programs remotely, i.e. given only the ability to query the targeted program and observe the output.
- SFADiff: A black-box differential testing algorithm based on Symbolic Finite Automate (SFA) learning
Finding differences between programs with similar functionality is an important security problem as such differences can be used for fingerprinting or creating evasion attacks against security software like Web Application Firewalls (WAFs) which are designed to detect malicious inputs to web applications.
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Commands Usage
Main interface commands:
| Command | Description |
|---|---|
| core | Shows available core modules |
| utils | Shows available query handlers |
| info <module> | Prints module information |
| library | Enters library |
| modules | Shows available application modules |
| use <module> | Enters module |
| start <moduleA> <moduleB> | Initiate algorithm |
| help | Prints help |
| status | Checks and installs required packages |
| complete | Prints bash completion command |
Module commands:
| Command | Description |
|---|---|
| back | Go back to main menu |
| info | Prints current module information |
| library | Enters library |
| options | Shows available options |
| define <option> <value> | Set an option value |
| start | Initiate algoritm |
| complete | Prints bash completion command |
Library commands:
| Command | Description |
|---|---|
| back | Go back to main menu |
| info <folder\module> | Prints requested module information (folder must be located in lightbulb/data/) |
| cat <folder\module> | Prints requested module (folder must be located in lightbulb/data/) |
| modules <folder> | Shows available library modules in the requested folder (folder must be located in lightbulb/data/) |
| search <keywords> | Searches available library modules using comma separated keywords |
| complete | Prints bash completion command |
Installation
Prepare your system
First you have to verify that your system supports flex, python dev, pip and build utilities:
For apt platforms (ubuntu, debian…):
sudo apt-get install flex
sudo apt-get install python-pip
sudo apt-get install python-dev
sudo apt-get install build-essential
(Optional for apt) If you want to add support for MySQL testing:
sudo apt-get install libmysqlclient-dev
For yum platforms (centos, redhat, fedora…) with already installed the extra packages repo (epel-release):
sudo yum install -y python-pip
sudo yum install -y python-devel
sudo yum install -y wget
sudo yum groupinstall -y 'Development Tools'
(Optional for yum) If you want to add support for MySQL testing:
sudo yum install -y mysql-devel
sudo yum install -y MySQL-python
Install Lightbulb
In order to use the application without complete package installation:
git clone https://github.com/lightbulb-framework/lightbulb-framework
cd lightbulb-framework
make
lightbulb status
In order to perform complete package installation. You can also install it from pip repository. This requires first to install the latest setuptools version:
pip install setuptools --upgrade
pip install lightbulb-framework
lightbulb status
If you want to use virtualenv:
pip install virtualenv
virtualenv env
source env/bin/activate
pip install lightbulb-framework
lightbulb status
The “lightbulb status” command will guide you to install MySQLdb and OpenFst support. If you use virtualenv in linux, the “sudo” command will be required only for the installation of libmysqlclient-dev package.
It should be noted that the “lightbulb status” command is not necessary if you are going to use the Burp Extension.
The reason is that this command installs the “openfst” and “mysql” bindings and the extension by default is using Jython, which does not support C bindings.
It is recommended to use the command only if you want to change the Burp extension configuration from the settings and enable the native support.
It is also possible to use a docker instance:
docker pull lightbulb/lightbulb-framework
Install Burp Extension
If you wish to use the new GUI, you can use the extension for the Burp Suite. First you have to setup a working environment with Burp Proxy and Jython
- Download the latest Jython from here
- Find your local python packages installation folder*
- Configure Burp Extender to use these values, as shown below*
- Select the new LightBulb module (“BurpExtension.py”) and set the extension type to be “Python”
You can ignore this step, and install the standalone version which contains all the required python packages included. You can download it here
Contributors: George Argyros,Ioannis Stais,Suman Jana,Angelos D. Keromytis Aggelos Kiayias
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