Re: Items within XP SP2 and Win2003

From: Thor (thor_at_hammerofgod.com)
Date: 09/28/04

  • Next message: Laura A. Robinson: "RE: Items within XP SP2 and Win2003" 
    To: "Eric McCarty" <eric@lawmpd.com>, "Depp, Dennis M." <deppdm@ornl.gov>, <larobins@bellatlantic.net>, "Joe Doyle" <joe.doyle@promega.com>, <focus-ms@securityfocus.com>
Date: Tue, 28 Sep 2004 09:48:03 -0700

    It is absolutely fine to employ host-based firewall measures, even in the
    presence of border restrictions and minimum service configurations at the
    server. It does indeed provide extra security, even if the border router is
    doing the same thing, particularly if the border router stops doing it or if
    an attacker gains access another way (modem/wireless/etc.) The ability to
    perform egress filtering alone is worth the administration (i.e. slammer).

    And while you might imagine many ways to get around the firewall (I can't,
    but that's cool) note that you will still have to do those things, whatever
    they are, where you would not in the absence of the FW. It's security in
    depth, and a Good Thing.

    t

    ----- Original Message -----
    From: "Eric McCarty" <eric@lawmpd.com>
    To: "Depp, Dennis M." <deppdm@ornl.gov>; <larobins@bellatlantic.net>; "Joe
    Doyle" <joe.doyle@promega.com>; <focus-ms@securityfocus.com>
    Sent: Tuesday, September 28, 2004 7:44 AM
    Subject: RE: Items within XP SP2 and Win2003

    Who doesn't have a border firewall? commonly its router - firewall -
    switch. So you propose to do address filtering on your host based
    firewall ?. I suggest rethinking this strategy as IP Address range
    blocking should be done at the border router or firewall long before any
    Network Translations are done or any traffic traverses the local
    network. I can imagine a plethora of ways to get around host based IP
    restrictions, can't get to server1, take over another machine on
    internal network, then get to server1 and likewise.

    Running a host based firewall will not allow an extra layer of security
    if its doing the same thing the border router/firewall is doing.

    In order to browse the internet from the server you will have to add a
    lot of sites to the trusted sites list, and once a site is considered
    trusted it's all over anyway.

    -----Original Message-----
    From: Depp, Dennis M. [mailto:deppdm@ornl.gov]
    Sent: Tuesday, September 28, 2004 4:18 AM
    To: Eric McCarty; larobins@bellatlantic.net; Joe Doyle;
    focus-ms@securityfocus.com
    Subject: RE: Items within XP SP2 and Win2003

    Eric,

    A firewall will not only block services, but it will also selectively
    allow services. For example, I might need to run a web server, but I
    only want users from a buisness partner to access this site. I can use
    the firewall to limit access to a specific IP address or subnet. In
    this case, a host based firewall can add another layer of security to a
    system. I do agree that you should not be browsing the internet from a
    server. However, some people will continue to browse the internet from
    servers. The enhancements to IE6 with W2K3 will not affect you or I,
    but they will affect many others.

    Dennis

    > -----Original Message-----
    > From: Eric McCarty [mailto:eric@lawmpd.com]
    > Sent: Monday, September 27, 2004 5:26 PM
    > To: Depp, Dennis M.; larobins@bellatlantic.net; Joe Doyle;
    > focus-ms@securityfocus.com
    > Subject: RE: Items within XP SP2 and Win2003
    >
    > I think this is a contradiction. On a server, you should turn off all
    > services you have no intention of having clients connect to, not setup

    > a firewall to block them. Next you should not be browsing the internet

    > using your server, and if you noticed, the enhanced browser security
    > prevents this for the most part anyway.
    >
    > Eric
    >
    >
    >
    > -----Original Message-----
    > From: Depp, Dennis M. [mailto:deppdm@ornl.gov]
    > Sent: Monday, September 27, 2004 9:27 AM
    > To: larobins@bellatlantic.net; Joe Doyle; focus-ms@securityfocus.com
    > Subject: RE: Items within XP SP2 and Win2003
    >
    > WRT Windows firewall and IE updates.
    >
    > Dennis
    >
    > > -----Original Message-----
    > > From: Laura A. Robinson [mailto:larobins@bellatlantic.net]
    > > Sent: Sunday, September 26, 2004 2:38 AM
    > > To: 'Joe Doyle'; focus-ms@securityfocus.com
    > > Subject: RE: Items within XP SP2 and Win2003
    > >
    > > In what respects?
    > >
    > > Laura
    > >
    > > > -----Original Message-----
    > > > From: Joe Doyle [mailto:joe.doyle@promega.com]
    > > > Sent: Wednesday, September 22, 2004 5:38 PM
    > > > To: focus-ms@securityfocus.com
    > > > Subject: RE: Items within XP SP2 and Win2003
    > > >
    > > >
    > > > Not yet. Windows 2003 Service Pack 1 is supposed to
    > bring it up to
    > > > speed with Windows XP SP2.
    > > >
    > > > Joe
    > > >
    > > > -----Original Message-----
    > > > From: James Bowman [mailto:jim@drexel.edu]
    > > > Sent: Sunday, September 19, 2004 9:11 PM
    > > > To: focus-ms@securityfocus.com
    > > > Subject: Items within XP SP2 and Win2003
    > > >
    > > >
    > > >
    > > > Is their a set of hotfixes needed for 2003 that make it
    > comprable in
    >
    > > > features / overall security posture to XP SP2?
    > > >
    > > >
    > > >
    > > > Although there's probably a bevy of XP SP2 items embedded
    > in 2003, I
    >
    > > > would imagine there's a bunch that's not...
    > > >
    > > >
    > > >
    > > > Thanks
    > > >
    > > > --------------------------------------------------------------
    > > > ----------
    > > > ---
    > > > --------------------------------------------------------------
    > > > ----------
    > > > ---
    > > >
    > > >
    > > >
    > > >
    > > > --------------------------------------------------------------
    > > > -------------
    > > > --------------------------------------------------------------
    > > > -------------
    > > >
    > >
    > >
    > > --------------------------------------------------------------
    > > -------------
    > > --------------------------------------------------------------
    > > -------------
    > >
    > >
    >
    > --------------------------------------------------------------
    > ----------
    > ---
    > --------------------------------------------------------------
    > ----------
    > ---
    >
    >

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  • Next message: Laura A. Robinson: "RE: Items within XP SP2 and Win2003"

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