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bradamsa-ng

A Burp Suite extension for Radamsa-powered fuzzing with Intruder

Index

• bradamsa-ng
  • Index
  • Introduction
  • Requirements
  • Installation
  • Building
  • Usage
    • Intruder Payload Generator
    • Intruder Payload Processor
    • WSL mode

Introduction

bradamsa-ng is a Burp Suite extension that brings the power of the amazing Radamsa fuzzer to Intruder. It is heavily influenced by the original bradamsa by ikkisoft and aims to fix some of its weaknesses while building upon its strengths.

One noteworthy feature of bradamsa-ng is its support for WSL.
Radamsa is (understandably) not developed with Windows in mind, which means that there is no official support for it. There was a solution to build Radamsa using Cygwin, but it didn't reliably work for me - and there's simply no guarantee that it'll work forever.

With WSL however, we can compile and run Radamsa in its natural habitat - hell, we can even run it from the Windows host (echo "test" | wsl -d Ubuntu -e radamsa). With bradamsa-ng, these new possibilities can now be leveraged in Burp.

Requirements

• Java >= 8 (Burp >= 2.0.14 ships with OpenJDK 11)
• Burp Suite obviously

Installation

• Build the extension or download a release
• Open Burp and navigate to the Extender tab
• Click Add
• In the dialog that just opened, select the extension type Java
• Click Find File and select your bradamsa-ng-${version}-jar-with-dependencies.jar
• Click Next - that's it

bradamsa-ng tries to automatically detect a Radamsa binary in your $PATH. If this succeeds, you'll see a message saying

Radamsa binary was found at /some/path/radamsa

in the extension's Output tab.

Likewise, when running on Windows and WSL is available, you'll either see

WSL is available, but no installed distributions have been found

or

WSL is available and the following distributions have been found: [Ubuntu, Kali]

depending on if WSL distributions are installed or not.

Building

• Linux / macOS: ./mvnw clean package
• Windows: mvnw.cmd clean package

The installable extension JAR can now be found at target/bradamsa-ng-${version}-jar-with-dependencies.jar

Usage

Intruder Payload Generator

• In Intruder's Payloads tab, select the payload type Extension-generated:
• Next, choose bradamsa-ng as generator under Payload Options:
• Set the amount of payloads you want to generate in the bradamsa-ng tab under Payload Count
  • All payloads will be generated before the first request is sent
• Start the Intruder attack
  • Please note that the Battering Ram attack is not supported

Intruder Payload Processor

Not implemented yet.

WSL mode

bradamsa-ng supports using Radamsa through Windows 10's Windows Subsystem for Linux.
In order to take advantage of it, you need the following:

• Windows 10 with WSL installed
  • Instructions to install WSL can be found here
• At least one installed WSL distribution (e.g. Ubuntu)
• Radamsa installed in at least one of the distributions
  • Using sudo make install will make it easier for bradamsa-ng to find the Radamsa binary

• The extension will let you know if WSL is available on startup as mentioned in Installation
• Switch to the bradamsa-ng tab and tick the Enable WSL mode checkbox
• Select the distribution where Radamsa is installed in
• bradamsa-ng will attempt to automatically find a Radamsa binary in the selected distro's $PATH
  • If this fails you can manually enter the absolute path to the binary inside the WSL distro
  • At this point, bradamsa-ng will simply check if the entered value points to an existing file or is a command that can be found in the distro's $PATH