RE: penetration test in a Windows 2000/NT network

[Herwig.Thyssens () ey be]

An  other  way  of  tackling the problem is going 'SNMP'. If you can find a
hole  in that (write access, etc), you control the complete network. Why go
specific  if  it  is possible to become "puppet master of then all".  There
are some nice tools out there (commercial and open source) to find the SNMP
services  and  play  with them (e.g. solarwinds, sans SNMPing and of course
nmap).


But more specific towards your questions:


=> smbrelay; smbrelay2 (Sir Dystic, Cult of the dead cow, man-in-the middle
relay attack, a very fun tool  :-)


Met vriendelijke groet,

Herwig Thyssens
Ernst & Young TSRS (formerly ISAAS)
Technology and Security Risk Services
204 Avenue Marcel Thiry Laan, B-1200 Brussels, Belgium
Tel: +32-(0)2-774.63.08 - Fax: +32-(0)2-774.94.79
E-mail: herwig.thyssens () ey be Url: www.tsrs.be






- -----Original Message-----
From: Ballowe, Charles [mailto:CBallowe () usg com]
Sent: Wednesday, May 14, 2003 4:11 PM
To: 'heron heron'; pen-test () securityfocus com
Subject: RE: penetration test in a Windows 2000/NT network


This sounds like a test from within the company. As it seems that
you will have physical access to facilities etc, would it be possible
for you to install something like a hardware key logger on a network
administrators workstation?

If someone has physical access to the LAN, I don't see why they couldn't
place devices on peoples systems. It may violate the rules for this
particular pen-test, but is something to think about. I see that you've
specified that physical access to Win2k systems is possible, and are
interested in not modifying the administrator account -- hardware
keyloggers
seem like an ideal solution.

What about wireless sniffers? Does the target use any wireless networking
at their facility?

> -----Original Message-----
> From: heron heron [mailto:h.heron () firemail de]
> Sent: Wednesday, May 14, 2003 8:30 AM
> To: pen-test () securityfocus com
> Subject: penetration test in a Windows 2000/NT network
>
>
> Hi,
>
> I will accomplish a penetration test in a Windows 2000/NT
> network shortly. A
> goal is to get  confidential information (files) and if
> possible get admin
> rights. I will be with my computers in the LAN. A computer
> for normal uses (thus
> no Admin access) is likewise put to me at the disposal.
>
> Is there a possibility on a Windows 2000 computers (physical
> access is possible)
> to attain admin rights without to overwrite the admin
> account. Background: I
> would like try to crack the password of the local admin (e.g.
> by means of pwdump
> and John). There ist the possibility that all admin passwords
> (also for the
> domain) is alike.
>
> Is there a tool, with which I can crack NTLMv2 hashes.
> Background: I will try to
> sniff hashes during the registration at the DC (e.g. CAIN,
> ettercap) and to
> crack them. Unfortunately me is still no tool known in order
> to crack NTLMv2
> hashes.
>
> A further possibility at to come to information, would be the
> employment of a
> SMB Proxy. By ARP Spoofing it would be nevertheless
> theoretically possible to
> intercept the LM/NTLM(v1/v2) authentication . Then the
> attacker could itself
> instead announce at the server. Does it give there already
> such a Tool?
>
> Who has suggestions? For Tools please give always in the Web
> URL (if possible of
> the programmer).
>
> Greeting
> Heron
>
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