06 November 2007 | 6,719 views

WSBang – Python Based SOAP Services Testing Tool

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WSBang is designed to be a lightweight, open source fuzzer for web services. It takes as input the URL or file system location of a WSDL for the web service to be tested. Upon completion, a simple HTML view of the test results will be displayed.

Method parameters are fuzzed based on their type as specified by the WSDL. The data used for each type can be specified in the “DataDef.xml” file supplied. In addition, default arguments for parameters can be specified in the same file in the Argument definitions.

  • Takes URL of WSDL as input
  • Fuzzes all methods and parameters in the service
  • Identifies all methods and parameters, including complex parameters
  • Fuzzes parameters based on type specified in WSDL
  • Reports SOAP responses and faults

Prerequisites:
SOAPpy version 0.11.6.

Use:
WSBang.py [URL of WSDL]

Files included:
WSBang.py – The main execution code for WSBang.
Fuzzer.py – Classes that support WS analysis and the fuzz engine.
DataProvider.py – Classes that provide fuzz data and default arguments.

You can download WSBang here:

WSBang.zip
WSBang.tar.gz

Or you can read more here.



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8 Responses to “WSBang – Python Based SOAP Services Testing Tool”

  1. dre 6 November 2007 at 5:21 pm Permalink

    WSBang and the iSecPartners’ tools are nice.

    Most recently, I have been using SOAPSonar Enterprise from Crosscheck Networks because of its inclusion of a very nice vulnerability assessment engine, as well as support for almost everything related to web services. The Personal Edition is also downloadable for free.

    For general XML fuzzing – check out untidy. Another tool worth mentioning is wsScanner from BlueInfy, whose creator – Shreeraj Shah – wrote the book on Hacking Web Services

  2. dirty 6 November 2007 at 6:07 pm Permalink

    havent got a chance to test this out but seems interesting…btw…the isec website has a lot of free python based tools available.

    the author, Andres Riancho, of untidy also wrote w3af (http://w3af.sourceforge.net/)
    w3af is a Web application attack and Audit Framework. The project goal is to create a framework to find and exploit web application vulnerabilities that is easy to use and extend.

  3. Darknet 7 November 2007 at 6:17 am Permalink

    dre: Yeah they have some pretty cool Python based stuff, I have a draft on untidy which is pretty useful – I haven’t really checked out an of the others yet. Will look at wsScanner.

    dirty: We have written about w3af before :)

  4. dirty 7 November 2007 at 8:58 pm Permalink

    darknet
    sorry, sometimes i forget where i have read about something (w3af). BTW a new version (Beta5) is out since the last time darknet reported on it…..

  5. fazed 8 November 2007 at 1:22 am Permalink

    nice tool, w3af is good. :)
    I don’t usually do anything with SOAP.

  6. dirty 8 November 2007 at 4:05 pm Permalink

    fazed:
    I know what you mean about SOAP. Never get a chance to do anything with it, customers not using it.

  7. CG 15 November 2007 at 4:11 am Permalink

    Does anyone know of any good test sites for SOAP/WSDL or have some instructions on building one. that’s really the big issue with all these cool SOAP fuzzers and auditing tools that there arent too many places running running apps you can play with.

    guess i need to get off my butt and build one…

  8. Saam Choy 19 January 2008 at 8:56 pm Permalink

    All of the tools mentioned are pretty good but really dont address SOAP security testing in its entirety. That is why many tools must be combined with solid manual testing. Also check out OWASP’s WSFuzzer as it does nasty testing against SOAP services. Their XML Fuzz Generator class is pretty interesting and worth analyzing. That neurofuzz team also has text web services on their site. xmethods also has tons of free services you can mess with.