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Take a look at our Documentation section for full details about every Burp Suite tool, function and configuration option.

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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. Command Injection Attacker

Command Injection Attacker

This extension is a customizable payload generator, suitable for detecting OS command injection flaws during dynamic testing - which is usually conducted with no access to the source code or the filesystem. Creation of SUCCESSFUL payloads in this kind of assessments requires a lot of guesswork, especially:

  • The eventual syntax of the expression we are injecting into (e.g. quoted expressions)
  • Input sanitizing mechanisms rejecting individual characters (e.g. spaces)
  • Platform-specific conditions (e.g. there is no "sleep" on windows)
  • Callback method (e.g. asynchronous execution, no outbound traffic allowed)

The purpose of creating this tool was to reach the non-trivial OS command injection cases, which stay undetected by generally known and used tools and sets of payloads.

Author Julian Horoszkiewicz, Secarma Ltd.
Version 2.0
Last updated 27 June 2018

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.

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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