Re: [PEN-TEST] Closing Port 139

["Deus, Attonbitus" <Thor () HammerofGod Com>]

RE: [PEN-TEST] Closing Port 139You won't get stateful inspection of packets
until ISA Server is out later this year...

NT's Advanced TCP/IP options will otherwise block any port not selected
under TCP/UDP.  You have to select the protocol as well.

To answer your other question, I have never experienced any odd behavior
when using the OS filtering, and have always had expected results when
testing against it.  It is also an easy way to help tighten up your
application servers.

---------------------------------------------------------
Attonbitus Deus
thor () hammerofgod com


----- Original Message -----
From: Frank Dimina
To: PEN-TEST () SECURITYFOCUS COM
Sent: Thursday, October 12, 2000 12:14 PM
Subject: Re: [PEN-TEST] Closing Port 139


Another question on this subject, is the NT TCP/IP filtering stateful or
does it just filter all packets on a port? (I am talking about the OS
filtering, not the proxy server feature)?


-----Original Message-----
From: Anderson, Harry F. [mailto:HFANDERS () OPM GOV]
Sent: Thursday, October 12, 2000 1:47 PM
To: PEN-TEST () SECURITYFOCUS COM
Subject: Re: [PEN-TEST] Closing Port 139


     How well does this work on just NT?  I have been told that the NT
packet filtering does not work consistantly with all ports.   I have wanted
to test it but there is just not enought time in the day.
  - Harry Anderson
-----Original Message-----
From:   Ansar Mohammed [SMTP:amohammed () CARIB-LINK NET]
Sent:   Thursday, October 12, 2000 11:53 AM
To:     PEN-TEST () SECURITYFOCUS COM
Subject:        Re: [PEN-TEST] Closing Port 139
Both Microsoft Windows NT and Proxy Server provide packet filtering at the
NIC level.
It can be accessed from the Security Tab of the Proxy Server properties and
the network applet of control panel.
> -----Original Message-----
> From: Penetration Testers [mailto:PEN-TEST () SECURITYFOCUS COM]On Behalf
> Of Kasey Speakman
> Sent: Thursday, October 12, 2000 9:54 AM
> To: PEN-TEST () SECURITYFOCUS COM
> Subject: [PEN-TEST] Closing Port 139
>
>
> How do I close this port?  The situation is that we are using
> an NT Server
> machine with MS Proxy Server.  There are no shares on this
> computer.  The
> computer has 2 nics.  One goes to the LAN, and the other goes
> to our router.
> I have the internet nic unbound from the WINS on both the
> server and the
> workstation services, but the other card is bound to the WINS on both
> services.  Auditing tools still show that the port is open,
> even though it
> won't give anyone any connections, but I don't want any
> attention being
> drawn to it by that port being open at all.  Help will be appreciated!
>
> Thanks,
>
> Kasey


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