Web app error messages.

Hi all,

I have recently conducted a web application penetration test for a
client and I am a little stuck as to the resolution advice I need to
give.

I have highlighted, among other things, the enumeration of 'hidden'
directories within the app.  This is normally conducted by finding
Access Denied or Forbidden messages, but I have come across the
following message:
"Virtual Directory Listing Denied."

That is all that is displayed on the page!  They are using asp and IIS.

What I need to know is:
what exactly is creating the error message?  IIS? ASP? etc.
How to create a bespoke error message or preferably redirect the user
to the home page?

Thanks in advance.

--
Lee J Lawson
leejlawson@gmail.com
leejlawson@hushmail.com

"Give a man a fire, and he'll be warm for a day; set a man on fire,
and he'll be warm for the rest of his life."

"Quidquid latine dictum sit, altum sonatur."

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