RE: Security hole at boot
- From: "Thomas W. Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Sat, 29 Dec 2001 13:55:35 -0600
Hi Dar,
Interesting. I've noticed the same thing with pings, but I honestly
didn't think about the implications. Can you create
HTTP/FTP/SMTP/NetBIOS or any other session during this period?
Thanks!
Tom
-----Original Message-----
From: Dar Scott [mailto:dsc@xxxxxxxx]
Sent: Saturday, December 29, 2001 1:33 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Security hole at boot
http://www.ISAserver.org
For about 22 seconds at boot I can see ports on my external interface
before the IP filter kicks in. I can ping the external interface
from another computer during this time.
I'm assuming I'm doing something wrong concerning when services are
started, but I'm at a loss. A search for boot at isaserver.org or in
Shinder or Simmons got nowhere.
I haven't seen this at shutdown. I haven't tested this for boot
after crash or power off.
Some of these ports I can shut off other ways (and normally have),
but I expect a firewall to protect me from forgetting those things.
Dar Scott
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