RE: All tcp ports open?
From: Mike Sues (msues_at_rigelksecurity.com)
Date: 08/30/04
- Previous message: Meidinger Chris: "RE: All tcp ports open?"
- In reply to: Varun Pitale: "Re: All tcp ports open?"
- Next in thread: Jack Burton: "Re: All tcp ports open?"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]
To: "'Varun Pitale'" <varun.pitale@gmail.com>, "'Ben Timby'" <asp@webexc.com>, <pen-test@securityfocus.com> Date: Mon, 30 Aug 2004 08:24:32 -0400
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.
>
> ----------------------------------------------------------------------
> --------
> 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
> ----------------------------------------------------------------------
> ---------
>
>
-- Regards, Varun (704)-548-8793 --(Home) (704)-241-0092 --(Mobile) mailto: varun.pitale_(at)_gmail_(dot)_com ------------------------------------------------------------------------ ------ 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 ------------------------------------------------------------------------ ------- ------------------------------------------------------------------------------ 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 -------------------------------------------------------------------------------
- Previous message: Meidinger Chris: "RE: All tcp ports open?"
- In reply to: Varun Pitale: "Re: All tcp ports open?"
- Next in thread: Jack Burton: "Re: All tcp ports open?"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]
Relevant Pages
|
