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OWASP Attack Surface Detector Project

Revision as of 19:53, 6 September 2018 by KenProle (talk | contribs) (adds youtube vide to main body. text edits.)

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During web application penetration testing, it is important to enumerate your application's attack surface. While Dynamic Application Security Testing (DAST) tools (such as Burp Suite and ZAP) are good at spidering to identify application attack surfaces, they will often fail to identify unlinked endpoints and optional parameters. These endpoints and parameters not found often go untested, which can leave your application open to an attacker.

What is the Attack Surface Detector?

The Attack Surface Detector tool figures out the endpoints of a web application, the parameters these endpoints accept, and the data type of those parameters. This includes the unlinked endpoints a spider won't find in client-side code, or optional parameters totally unused in client-side code. It also has the capability to calculate the changes in attack surface between two versions of an application.

The Attack Surface Detector is available as a plugin to both OWASP ZAP and Burp Suite, and a Command Line Interface (CLI) tool. The CLI tool exports the attack surface as a JSON output, which can then be used by the ZAP and Burp Suite plugin. This is helpful for cases where the source code is not provided to the penetration tester directly. The CLI tool can also be used for other custom integration where you want to discover an application attack surface or changes in the attack surface.

For a quick overview of the Attack Surface Detection tool, see this YouTube video.

How it Works

The Attack Surface Detector Implements the HAM engine to perform static code analyses to identify web app endpoints by parsing routes and identifying parameters (with supported languages and frameworks). This data is made available in Burp Suite and OWASP ZAP​

Supported Frameworks

C# / Web Forms
Java / Spring MVC
Java / Struts
Java JSP
Python / Django
Ruby / Rails


The Attack Surface Detector plugin is free to use. It is licensed under the link Mozilla Public License 2.0.

Getting Involved

Contributions to the Attack Surface Detector project are encouraged and welcome. Additions of new features and enhancements can be provided through GitHub. We encourage users to assess the technology through individual evaluations, pilots and/or case studies.

Project Resources

ASD Plugin for OWASP ZAP:

ASD ZAP Home Page


Install Attack Surface Detector

Source Code Configuration

Target URL Configuration

Import Endpoints

Issue Tracker

ASD Survey

ASD Plugin for PortSwigger Burp:

ASD Burp Home Page

ASD Burp Wiki

Install Attack Surface Detector

Source Code Configuration

Target URL Configuration

Import Endpoints

Issue Tracker

ASD for Burp Video

ASD Survey

ASD command-line tool:

ASD CLI Home Page


Building from Source

Usage, Parameters and Output

Issue Tracker

Project Leader

Ken Prole

Email: [email protected]

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