Firewall Wizards mailing list archives

Re: Cisco PIX open ports on outside interface?


From: "Fabio Pietrosanti (naif)" <fabio () telemail it>
Date: Sat, 9 Dec 2000 05:17:54 +0100 (CET)

depot/prod/ontap? isn't this network appliance, file server, or web
accellerator?

naif

On Tue, 5 Dec 2000, Smith, Gary (SCOTAM) wrote:

All:

I have an acl on the outside interface of a pix that allows:

80 & 443 to a web server on the DMZ
25 to a mail server on the DMZ

and then has an explicit deny ip any any rule.

When a security company ran a strobe against the outside interface they
claim that both Telnet and Cisco Secure Telnet were open on the outside
interface (although they couldn't connect) and I have also verified that
port 80 is open with the following returned after a get /

<!-- $ID: //depot/prod/ontap/Rbrutus/prod/netcache/errors/500.html#1 $ -->

I couldn't verify the telnet ports were open (though I don't know what they
used to test, I used netcat), we do have remote administration enabled but I
remember reading somewhere that this was only on the inside interface
(though this might be version 4.x.x documentation).

Should any ports be open on the outside interface by default?  Where is this
documented?

Any and all help gratefully received.

--Gary;




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