I do not think this is the tool you've got in mind, but what I have done some
months ago is the following:
- download iptrap (www.jedi.claranet.fr),
- create a script that launches if on each port between, let's say,
1-1024
- then running an nmap or nessus or whatever more againt it, will give
all the ports open.
That's maybe not the smarter solution, but without spare time... :)
I am not a honeypot's guru, but maybe a honeypot as Specter, DTK or HoneyD can
do this, correct me if I am wrong...
-----Message d'origine-----
De : Beaty, Bryan [mailto:Bryan.Beaty@vector.com]
Envoyé : lundi 30 août 2004 20:18
À : Todd Towles; Don Parker; asp@webexc.com; pen-test@securityfocus.com
Objet : RE: All tcp ports open?
I know there is a hardware device that does this. I cannot for the life of me
remember the name but I have seen it used by several banks. It intentionally
shows all ports open making port scanning almost useless.
I would love to know the name of the appliance if anybody knows it.
-----Original Message-----
From: Todd Towles [mailto:toddtowles@brookshires.com]
Sent: Monday, August 30, 2004 8:15 AM
To: Don Parker; asp@webexc.com; pen-test@securityfocus.com
Subject: RE: All tcp ports open?
It is a proactive defense measure most likely. Hard to tell what services are
up and running if all the ports return SYN/ACK when scanned with a SYN scan.
This is talked about in "Hacking: The Art of Exploitation" by Jon Erickson.
Very good book. All of this was pointed out by another fellow member eariler.
-----Original Message-----
From: Don Parker [mailto:hydra291@hotmail.com]
Sent: Sunday, August 29, 2004 4:37 PM
To: asp@webexc.com; pen-test@securityfocus.com
Subject: RE: All tcp ports open?
Hello Ben, it makes absolutely no sense that there is a service listening on
every TCP port at all. Are you sure? Could you perhaps paste the hping o/p
here? Lastly if the handshake are not completed the connection may not be
handed to the internal network if there is a f/w in front of it, which
validates the handshake. More info as to what you are trying to get past O/S
wise as well as network topology would be most helpful.
Cheers,
Don
----------------------------------------
Don Parker, GCIA
Intrusion Detection Specialist
1.613.302.2910(c)
----------------------------------------
From: Ben Timby <asp@webexc.com>
To: pen-test@securityfocus.com
Subject: All tcp ports open?
Date: Sun, 29 Aug 2004 02:04:08 -0500
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
-----------------------------------------------------------------------
--------
_________________________________________________________________
Take charge with a pop-up guard built on patented Microsoft(r) SmartScreen
Technology.
http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU
=http://hotmail.com/enca&HL=Market_MSNIS_Taglines
Start enjoying all the benefits of MSN(r) Premium right now and get the first
two months FREE*.
------------------------------------------------------------------------
------
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
------------------------------------------------------------------------
-------
------------------------------------------------------------------------------
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
-------------------------------------------------------------------------------
