full-disclosure - [SPAM] Stealing DHCP Leases

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Message-ID: <048501c4b0ec$7c710a90$5746370a@nsp.co.nz>
From: venom at gen-x.co.nz (VeNoMouS)
Subject: [SPAM] Stealing DHCP Leases

if the dhcpd is by isc and the dhcpd is running on *nix just cat 
/var/state/dhcp/dhcpd.leases.


----- Original Message ----- 
From: "Hugo van der Kooij" <hvdkooij@...derkooij.org>
To: <full-disclosure@...ts.netsys.com>
Sent: Wednesday, October 13, 2004 6:52 PM
Subject: Re: [SPAM] [Full-Disclosure] Stealing DHCP Leases


> On Tue, 12 Oct 2004, Ian Holm wrote:
>
>> I was noticing that the number of DHCP address in the DHCP cache was 
>> running
>> low so I decided to check which computers were assigned to each address. 
>> To
>> my horror I saw that there were 81 addresses assigned at exactly the same
>> time and all expired at exactly the same time. I'm assuming that these 
>> were
>> all assigned to the same machine. How is this possible? Where could I 
>> learn
>> about this and how to prevent it?
>
> Any decent log will show you the MAC level address. So go out and
> investigate the machine.
>
> There are plenty of known and documented ways of depleting a DHCP pool in
> microseconds. A simple google search will do the trick.
>
> Hugo.
>
> -- 
> I hate duplicates. Just reply to the relevant mailinglist.
> hvdkooij@...derkooij.org http://hvdkooij.xs4all.nl/
> Don't meddle in the affairs of magicians,
> for they are subtle and quick to anger.
>
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