RE: Avoid sending current credentials automatically over the network

From: Gadi Evron (ge@linuxbox.org)
Date: Tue Feb 13 2007 - 19:12:42 EST


On Tue, 13 Feb 2007, Shenk, Jerry A wrote:
> I would recommend blocking those ports (135, 137, 139 and 445) at the
> edge router so that at least they aren't sent over the internet. For
> some machines, perhaps you want a host firewall to block them from
> leaving the box at all.

Erm, always a sound advice on a personal/desktop/local/whatever firewall,
but how about disabling the services? (those you can)

        Gadi.

>
> -----Original Message-----
> From: listbounce@securityfocus.com [mailto:listbounce@securityfocus.com]
> On Behalf Of Umil
> Sent: Tuesday, February 13, 2007 10:21 AM
> To: pen-test@securityfocus.com
> Subject: Avoid sending current credentials automatically over the
> network
>
> Hi all
>
>
> When mapping a network share without any credentials parameter or when
> clicking in a link for a internal app Windows and IE automatically send
> the
> current users credentials automatically. Aparently for IE you can
> configure
> to send anonymous creds (guest account) and then ask for creds.
> However over the network there is no option to avoid sending current
> users
> creds automatically. I tried smb signing but it didn't work.
> Does anyone know a solution for it?
> Thanks
> Uno
>
>
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