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RE: Re: Microsoft Security, baby steps ?
From: John.Airey () rnib org uk
Date: Wed, 17 Mar 2004 16:46:58 -0000

-----Original Message-----
From: Geo. [mailto:geoincidents () getinfo org]
Sent: Wednesday, 17 March 2004 16:12
To: Simon Richter; Geoincidents
Cc: Daniele Muscetta; full-disclosure () lists netsys com
Subject: RE: [Full-disclosure] Re: Microsoft Security, baby steps ?


Hrm, how about inventing an option (at install time) that 
places a very
restrictive firewall on the network connection by default, say, only
outgoing port 80 to windowsupdate.com (or even better, only let it
establish a secure tunnel there), so you can patch and then loosen the
firewall settings after that?<<

It doesn't address the issue. The requirement is that some MS 
customers need
to patch without putting the machine on the internet. For 
whatever reasons.

Is that such an unreasonable request?

Geo.


From experience, you can't just lock down to that one server. You need to
allow port 80 and 443 access to different servers. Each day the list of
servers changes because of the Akamai caching that is used. I spend some
time configuring locked down systems to be able to talk to them. So yes, it
is an unreasonable request.

On the other hand, access to Red Hat Network needs only one port and one IP
address. No doubt there's some serious load-balancing going on in the
background.

- 
John Airey, BSc (Jt Hons), CNA, RHCE
Internet systems support officer, ITCSD, Royal National Institute of the
Blind,
Bakewell Road, Peterborough PE2 6XU,
Tel.: +44 (0) 1733 375299 Fax: +44 (0) 1733 370848 John.Airey () rnib org uk 

Shameless movie plug - go see the Passion of the Christ!

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