From: Don Parker (hydra291@hotmail.com)
Date: Sun Aug 29 2004 - 17:37:18 EDT
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.
>
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taught by an expert instructor with years of in-the-field pen testing
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