Firewall Wizards mailing list archives

Re: worm + VPN + firewall


From: Carric Dooley <carric () com2usa com>
Date: Sat, 16 Aug 2003 12:55:52 -0400 (EDT)

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I have worked with a client that started getting RPC scans from their VPN
range the day the worm was released. Luckily they had patched most of
their systems.

I agree that the VPN segment should be DMZ'd, but typically those users
have acess to NetBIOS so they can map shares, etc. If you didn't patch,
you are hosed on this one. Lots of people didn't learn from Nimda.

On Fri, 15 Aug 2003, R. DuFresne wrote:

On Wed, 13 Aug 2003, Mordechai T. Abzug wrote:


Has anyone had a user's external Blasterized system that VPNd past a
firewall and compromised an internal network?  It would be nice to
have conrete examples for the "VPNs should terminate outside
firewalls" argument.


While I have not heard direct claims of such kinds of infections so far
with the msblaster episode, there have been issues noted with roadwarriors
coming into the office and their laptops, already infected, spreading
their sickness throughout the LAN.

Thanks,

Ron DuFresne
-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       admin & senior security consultant:  sysinfo.com
                       http://sysinfo.com

"Cutting the space budget really restores my faith in humanity.  It
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business of hate, debauchery, and self-annihilation."
               -- Johnny Hart

testing, only testing, and damn good at it too!

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