[3836] in WWW Security List Archive

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Re: web server's security -Reply

daemon@ATHENA.MIT.EDU (Javier Romeu)
Wed Dec 18 11:56:06 1996

From: "Javier Romeu" <redsecurity@netculture.net>
To: DAVE SANDERS <DSANDERS@fusn.com>
Date: Wed, 18 Dec 1996 16:20:59 +0100
Reply-to: redsecurity@netculture.net
CC: www-security@ns2.rutgers.edu
X-Confirm-Reading-To: redsecurity@netculture.net
Errors-To: owner-www-security@ns2.rutgers.edu

Hi,

> The only way this information can be gained is by running an identd
> check (a query to the identd daemon on the _client's_, i.e.
> brower's, machine) on the socket connected to the browser. identd is
> 1) not run by alot of people on their machines (Unix), and 2)
> non-existent on windoze machines.

Well, as I said in a previous message, it's trivial for a Windoze 
user to install an identd server and spoof those responses. For 
example, Mirc, in File-Setup-Identd, let's specify this. Of course, 
if user is usgin Mirc at the same time he/she's browsing your pages 
you'll get the identd response he/she has set for Mirc, so you may get 
something like D0nt_Ask or r00t :)

> For the web server to collect this info, it has to connect to the
> identd daemon, send a request, and get a reply. This is a
> performance bottleneck in general, and since it will likely gain you
> little information, is pretty useless IMO.

If the identd response is needed to allow the incoming http connecion 
it may be a bottleneck. But could be also implemented so that both 
process run at the same time?

Regards,
Javier
________________________________________________________
**************** R E D  S e c u r i t y ****************
Javier Romeu, Manager.           
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Web: http://www.netculture.net/~redsecurity
Tel: +34-3-2098048                    Fax: +34-3-2048105
	 Especialistas en *Seguridad* Informatica
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