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Re: best tool to draw attack trees ??
From: Mark Curphey <mark () curphey com>
Date: 23 Mar 2002 14:08:05 -0800

We looked at Attack Trees at OWASP (http://www.owasp.org) ages ago. More
important things got in the way (like building Web Scarab and the Input
/ Output API's) but we played with UML Sequence diagrams and it
certainly was a effective way of doing attack trees. 

http://www.owasp.org/pen-test-list-phf.gif is the only old example I can
find now of the classic Phone Book script.

A good Open Source freeware tool is Poseidon Commuity Edition from
www.gentleware.com 

Worth pointing out they seem to have been derived from earlier work by
Jeff Voas and Gary McGraw in their books Software fault injection.

On Fri, 2002-03-22 at 18:22, lit sec wrote:
Attack Trees, eh?

I've had a look at the Java-based solution over at http://www.amenaza.com/ .  Looks like it might suit your needs. 
Fairly easy to use, and does a hell of a lot more than Visio.  Here's a quote:  "(Amenza) ...the developers of 
SecurITree, a risk assesment tool and methodology that can help your organization determine possible threats to your 
IT systems and how to best ward off these threats."

-Luddites.Canada



---------- Original Message ----------------------------------
From: "Kruse, Darren (DEH)" <Kruse.Darren2 () saugov sa gov au>
Date: Fri, 22 Mar 2002 13:30:18 +1030

I'm puzzling over what is the best way to draw attack trees. 
Attack trees provide a formal, methodical way of describing the security of
systems, based on varying attacks. Basically, you represent attacks against
a system in a tree structure, with the goal as the root node and different
ways of achieving that goal as leaf nodes. 
Bruce Schnier's Secrets and Lies - Digital Security in a Networked World
http://www.amazon.com/exec/obidos/ASIN/0471253111/qid=1016671800/sr=8-1/ref=
sr_8_67_1/002-8209990-0206427 , in particular chapter 21 covers Attack Trees
There's also a DDJ article on attack trees
http://www.ddj.com/documents/s=896/ddj9912a/9912a.htm (also by Bruce
Schnier) that covers virtually the same ground as the book. 
I'm thinking that it would make a really good motivational tool for
management to see what all the threats are against our systems.
Having a documented attack tree would also help me in identifying what holes
,and threats I need to worry about RIGHT NOW !
My first thought was to wade in, and start drawing with Visio - making use
of the layers feature to distinguish between different sets of values..
Possible / Impossible Cost script kiddie tool released ? 
etc.. 
But does anyone know of a more "closely-suited" tool than Visio ? I've done
a google search on "attack tree" software, and come up blank.
There are cheaper alternatives to Visio - maybe Kivio mp
http://www.thekompany.com/products/kivio/faq.php3 ?? Unfortunately, the KDE
version (Kivio without the mp suffix) doesn't do layers. :-(
Would a web interface be better ? - certainly for navigating between
threats, but how about when you want to see a larger part of the tree ? , or
the whole attack tree ??
Maybe MS Project ? - it's good at showing inter-related tasks , that have
dependancies and costs, and can output to HTML as well. 
How about when I want to add , or share bits of someone else's attack tree ?
It would be cool to be able to download discrete sub-branches, just like you
download additional Snort IDS signatures. 

Darren Kruse CCNP CCDP
WAN/LAN Networking Consultant
Mobile : (+61) 0407 446 399
mailto://darren_kruse () hotmail com
http://www.geocities.com/darren_kruse


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Service. For more information on SecurityFocus' SIA service which
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https://alerts.securityfocus.com/



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Service. For more information on SecurityFocus' SIA service which
automatically alerts you to the latest security vulnerabilities please see:
https://alerts.securityfocus.com/


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