RE: Dangerous in using nmap for AS/400 730 machine configured with 3 ASPs?

["Newton, Preston" <cpnewton () eprod com>]

Define problems.

I once used nessus to do some auditing on one of my server networks.  It
caused one server app to crash due to the application expecting a
specific communication string when a system connected to it.  It could
be that they are running a really poorly written app that expects
specific connection strings and nmap sent something it did not
like/expect.

Can you query the admins and ask them if the problem seems like a system
problem or an application problem.  I have a feeling it's an application
issue and not a system issue.



-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com]
On Behalf Of Brahnda A. Eleazar
Sent: Thursday, May 15, 2008 9:46 PM
To: pen-test () securityfocus com
Subject: Dangerous in using nmap for AS/400 730 machine configured with
3 ASPs?

Peace all,

I am wondering whether this is related or not.
I was in the middle of beginning a pentest activity for a network
segment containing quite a number of AS400 (Production).
I started with a simple nmap first to see what I am facing.
My command was (IPs are masked) "nmap -sV -vv -p 8470-8476 -o
firsttry_port.nmap xxx.xxx.xxx.0/24"
This lasted for about 15 minutes.

After about 2 hours later, 2 out of 50+ identifiable machines started
having problems.
They became very slow.
Those two machines are using ASP (Auxiliary Storage Pools), 1 ASP on the
1st machine and 2 ASPs on the 2nd.

I just want to get more information whether my nmap did anything "bad"?
:)

Thanks and Regards,
=adley=


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in Securing Web Applications
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