[WEB SECURITY] SIFT Web Method Search Tool

[Daniel Grzelak]

Dear WebAppSec Subscribers,

On behalf of SIFT I would like to inform you that SIFT has just published a
world-first tool for identifying rogue web methods. The Web Method Search
tool is a Windows based application that uses a hybrid dictionary attack in
an attempt to find unpublished administrative and other web services
functions.

As web services are becoming more prevalent, poor security practices from
previous generations of application architectures are being transferred to
the web service space. One of these practices is the use of 'security
through obscurity' to hide certain web methods from users - that is, web
methods exist that can be called, but that are not published in the WSDL or
otherwise disclosed.

The SIFT Web Method Search tool is a dictionary attack tool that can be used
to brute force the web method names for a given web service under certain
circumstances. That is, SOAP requests can be submitted to a web service
using probable combinations of words to allow the identification of hidden
web methods not published in the corresponding WSDL document. This is
possible because responses to requests for non-existent web methods and web
methods that exist differ markedly under most platforms.

The tool is available for download from
http://www.sift.com.au/73/0/tools.htm.

Should anyone have any questions, bug reports or other suggestions please
feel free to contact us via research at sift.com.au

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