Re: [Full-Disclosure] another product affected by recent MS IE '' patch

From: Guido van Rooij (guidogvr.org)
Date: Mon Feb 09 2004 - 05:59:19 CST

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On Mon, Feb 09, 2004 at 10:42:18AM +1300, Nick FitzGerald wrote:
> Section 3.2.2:
>
> http_URL = "http:" "//" host [ ":" port ] [ abs_path [ "?" query ]]
>
> You then have to refer back to RFC 2396 -- coincidentally also section
> 3.2.2 of that RFC -- for the definitions of the component parts "host"
> and "port" ("abs_path", etc are irrelevant to this discussion and
> defined in other sections of 2396).
>
> There you will see that "host" is a sub-part of the "hostport" part of
> the "server" component of generic URIs:
>
> server = [ [ userinfo "" ] hostport ]
>
> hostport = host [ ":" port ]
>
> and, most importantly, you should note that the "userinfo" part is
> _outside_ the definition of "hostport", and thus outside the "host"
> part. Ergo, HTTP URLs are explicitly (and presumably deliberately)
> defined to _NOT_ support "userinfo" data so any implementation that
> does is non-compliant.

Following the same reasoning, the HTTP URLs are also "deliberately" defined
to not support port numbers. I fail to believe that this was intentional.

-Guido

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