There is a problem (seems to be a bug) with Oracle Web Listener where a resource can be accessed when is shouldn't be able to be accessed: Consider the following setup: Access to http://host/ows-bin/owa/thenormal.app _is_ allowed. However access to the owa_util package in the same dir is not allowed so requesting http://host/ows-bin/owa/owa_util.signature causes the Oracle Web Listener to throw back an HTTP 401 response ie it requires a user id and password. However by making a request and substituting the _ with %5f (eg. http://host/ows-bin/owa/owa%5futil.signature) we're granted access. Or using %2e instead of the dot (eg. http://host/ows-bin/owa/owa_util%2esignature ) does the same: we're given access, then too. On sites that protect access to owa_util using this method will be at great risk from queries using showsource, cellsprint, tableprint and listprint. Version Oracle_Web_listener2.1/1.20in2 on Solaris was tested. More recent and earlier versions may also be affected but that's not known yet. Anybody with access to such versions it - could you check? TIA Cheers, David Litchfield http://www.infowar.co.uk/mnemonix/ Cerberus Information Security
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