Beta 2 is now available for testing. Problems Corrected since Beta 1:
1) The -c option to the 'dump' and 'show routing' commands is now
documented.
2) The syntax of the 'show' command has been corrected in four
manpages.
New Features since Beta 1:
1) The 'TARPIT' target is now supported in the rules file. Using this
target requires the appropriate support in your kernel and
iptables. This feature implements a new "TARPIT Target" capability,
so if you use a capabilities file, then you need to regenerate the
file after installing this release.
TARPIT captures and holds incoming TCP connections using no local
per-connection resources.
TARPIT only works with the PROTO column set to tcp (6), and is
totally application agnostic. This module will answer a TCP request
and play along like a listening server, but aside from sending an
ACK or RST, no data is sent. Incoming packets are ignored and
dropped. The attacker will terminate the session eventually. This
module allows the initial packets of an attack to be captured by
other software for inspection. In most cases this is sufficient to
determine the nature of the attack.
This offers similar functionality to LaBrea
<http://www.hackbusters.net/LaBrea/> but does not require dedicated
hardware or IPs. Any TCP port that you would normally DROP or
REJECT can instead become a tarpit.
The target accepts a single optional parameter:
tarpit (default)
This mode completes a connection with the attacker but limits
the window size to 0, thus keeping the attacker waiting long
periods of time. While he is maintaining state of the
connection and trying to continue every 60-240 seconds, we
keep none, so it is very lightweight. Attempts to close the
connection are ignored, forcing the remote side to time out
the connection in 12-24 minutes.
honeypot
This mode completes a connection with the attacker, but
signals a normal window size, so that the remote side will
attempt to send data, often with some very nasty exploit
attempts. We can capture these packets for decoding and
further analysis. The module does not send any data, so if
the remote expects an application level response, the game
is up.
reset
This mode is handy because we can send an inline RST
(reset). It has no other function.
Thank you for testing,
-Tom
--
Tom Eastep \ When I die, I want to go like my Grandfather who
Shoreline, \ died peacefully in his sleep. Not screaming like
Washington, USA \ all of the passengers in his car
http://shorewall.net \________________________________________________
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