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.