November 11, 2008

Introduction to Microsoft's SDL Threat Modeling Tool

If you design and/or write code, building trustworthy software may or may not be a driver in your team. If you care to build secure code (which I would assume since you read my blog) threat modeling may be a very important part of your development lifecycle.

If you are a regular reader of this blog, you know earlier this year I challenged Microsoft to cross-breed The Microsoft TAM tool with Microsoft's internal threat modeling tool that they use for their own commercial software. While the TAM tool is a great application threat modeling tool, it doesn't align well with the use of STRIDE, as part of SDL. You can see the difference in the two processes with this image:

During MVP summit, Alun, Jesper and I sat in on a developer security session where I pressured hard on Adam Shostack, the owner of the tool within Microsoft, to release this tool to the community. At the time it was heavily coded to use internal Microsoft resources and pathings, and just wasn't in a position to be released outside the corporate LAN.

Well, I am proud to annouce that Adam and his team listened to our feedback, and released a beta of the tool this week for FREE to the community. You can download it here.

John Bristowe, Developer Evangelist for Microsoft, heard about this and invited me on to a podcast where we talk about the tool. You can check out John's blog post here, or download the MP3 here.

And finally, if you download the SDL Threat Modeling Tool and would like to discuss how best to use it, want to report ways you think it could be better, or want to report potential defects, you can visit the Microsoft Security Development Lifecycle (SDL) - Threat Modeling MSDN forum here. I am one of the moderators there, so if you would like to talk to me about the tool, this would be a great avenue to do so.

Many thanks to Adam, his team and Microsoft for releasing such a useful tool that can significantly help in the threat modeling process, and drastically reduce the time and associated costs in making this process part of the development lifecycle of many different dev shops in the community.

Posted by SilverStr at November 11, 2008 10:45 AM | TrackBack

I am excited to look into this further but it requires Visio 2007 to be present before it will install. Bummer.

thanks for the heads up though, ...

Posted by: joe at November 12, 2008 01:57 PM

Hi Joe,

The SDL Threat Modeling Tool will work with the demo version of Visio 2007 if you'd like to experiment with it.


Posted by: Adam at November 12, 2008 11:25 PM