Hello,
just to confirm someone else's posting, the Milkyway
firewall, Blackhole, later named to SecureIT does respond
in this way too. I also saw old versions of the Raptor
firewall respond with all open ports.
Did you try a fragmented SYN scan? I have seen SecureIT
respond differently to the fragmented SYN scan. That is,
all ports are reported closed but rsh is reported open.
This would be a possible way to fingerprint the firewall.
--------------------------------------------
Mike Sues, GCIH
Ethical Hack Specialist
Rigel Kent Security & Advisory Services Inc
http://www.rigelksecurity.com
voice:613.233.HACK
fax :613.233.1788
toll
free :1.877.777.H8CK
--------------------------------------------
-----Original Message-----
From: Varun Pitale [mailto:varun.pitale@gmail.com]
Sent: Sunday, August 29, 2004 6:36 PM
To: Ben Timby; pen-test@securityfocus.com
Subject: Re: All tcp ports open?
I have seen a solaris box which was acting as a load balancer act this
way too, so it might be a loadbalancer thing. All ports seem to be
open, but they do not give any response . If you could post what kinds
of machines they are, it would be good..
On Sun, 29 Aug 2004 02:04:08 -0500, Ben Timby <asp@webexc.com> wrote:
I am not sure what is doing this, but I assume it is a software (or
some kind of) firewall/hids, can anybody point me in the right
direction?
I am pen-testing a Windows webserver, and a port scan reveals ALL tcp
ports open. hping also confirms that a SA is returned for any S
packets sent to any port I try. I can connect via netcat any of the
ports, and send data, but nothing is returned. In order to verify
services, I am required to connect and check for a banner or send
appropriate protocol commands to elicit a response.
Has anyone seen this, or have any idea of what this is?
Thanks.
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--
Regards,
Varun
(704)-548-8793 --(Home)
(704)-241-0092 --(Mobile)
mailto: varun.pitale_(at)_gmail_(dot)_com
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guaranteed to be 12 students or less to facilitate one-on-one
interaction with one of our expert instructors. Check out our Advanced
Hacking course, learn to write exploits and attack security
infrastructure. Attend a course taught by an expert instructor with
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-------
------------------------------------------------------------------------------
Ethical Hacking at the InfoSec Institute. All of our class sizes are
guaranteed to be 12 students or less to facilitate one-on-one interaction
with one of our expert instructors. Check out our Advanced Hacking course,
learn to write exploits and attack security infrastructure. Attend a course
taught by an expert instructor with years of in-the-field pen testing
experience in our state of the art hacking lab. Master the skills of an
Ethical Hacker to better assess the security of your organization.
http://www.infosecinstitute.com/courses/ethical_hacking_training.html
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