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Burp Extender

Burp Extender lets you extend the functionality of Burp Suite in numerous ways.

Extensions can be written in Java, Python or Ruby.

API documentation Writing your first Burp Suite extension
Sample extensions View community discussions about Extensibility
  1. Support Center
  2. BApp Store
  3. Custom Parameter Handler

Custom Parameter Handler

This extension provides a simple way to modify any part of an HTTP message, allowing manipulation with surgical precision even (and especially) when using macros. Typically, macros only support HTTP parameters (name=value), but with this extension anything can be targeted as if it were a parameter.

Features include:

  • Automatic modification of requests, responses, or both, based on scope and pattern matching.
  • Find and replace/append, with support for regular expressions.
  • Scoping to specific Burp Suite tools.
  • Targeting specific matches (only first, all matches, or hand-picked).
  • Chaining and ordering of modifications, and the ability to base next-in-line modifications off previous responses.
  • Save/load Config:
    • Quicksave/quickload (persists between Burp/Extender sessions).
    • Import/export from and to file.
  • After running a macro, extract replacement value from its final response.
  • Modifying each request/response within a macro.

Usage documentation:

Requires Jython version 2.7.0

Author @elespike, @eth0up
Version 2.0
Last updated 31 July 2017

You can install BApps directly within Burp, via the BApp Store feature in the Burp Extender tool. You can also download them from here, for offline installation into Burp.

You can view the source code for this BApp by visiting our GitHub page.
Follow @BApp_Store on Twitter to receive notifications of all BApp releases and updates.
Download BApp

Please note that extensions are written by third party users of Burp, and PortSwigger Web Security makes no warranty about their quality or usefulness for any particular purpose.

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