2017-036-Adam Shostack talks about threat modeling, and how to do it properly

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Adam Shostack has been a fixture of threat modeling for nearly 2 decades. He wrote the 'threat modeling' bible that many people consult when they need to do threat modeling properly.

We discuss the different threat modeling types (STRIDE, DREAD, Trike, PASTA) and which ones Adam enjoys using.

Mr. Boettcher asks how to handle when people believe an OS is better than another, how to do threat modeling to decide which OS should be the one to use.

Stay after for a special post-show discussion with Adam about his friend Stephen Toulouse (@stepto).

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SHOW NOTES:

Ideas and suggestions here:

Start with “What is threat modeling?” What is it, why do people do it, why do organizations do it?

What happens when it’s not done effectively, or at all?

At what point in the SDLC should threat modeling be employed?

Planning?

Development?

Can threat models be modified when new features/functionality gets added?

Otherwise, are these just to ‘check a compliance box’?

Data flow diagram (example) -

process flow

External entities

Process

Multiple Processes

Data Store

Data Flow

Privilege Boundary

Classification of threats-

STRIDE - https://en.wikipedia.org/wiki/STRIDE_(security)

DREAD - https://en.wikipedia.org/wiki/DREAD_(risk_assessment_model)

PASTA - https://www.owasp.org/images/a/aa/AppSecEU2012_PASTA.pdf

Trike - http://octotrike.org/

https://en.wikipedia.org/wiki/Johari_window

Butler Lampson, Steve Lipner link: https://www.nist.gov/sites/default/files/documents/2016/09/16/s.lipner-b.lampson_rfi_response.pdf

Escalation Of Privilege card game: https://www.microsoft.com/en-us/download/details.aspx?id=20303

NIST CyberSecurity Framework: https://www.nist.gov/cyberframework

Data Classification Toolkit - https://msdn.microsoft.com/en-us/library/hh204743.aspx

Microsoft bug bar (security) - https://msdn.microsoft.com/en-us/library/windows/desktop/cc307404.aspx

Microsoft bug bar (privacy) - https://msdn.microsoft.com/en-us/library/windows/desktop/cc307403.aspx

OWASP threat Modeling page: https://www.owasp.org/index.php/Application_Threat_Modeling

OWASP Threat Dragon - https://www.owasp.org/index.php/OWASP_Threat_Dragon

Emergent Design: https://adam.shostack.org/blog/2017/10/emergent-design-issues/

https://www.researchgate.net/profile/William_Yurcik/publication/228634178_Threat_Modeling_as_a_Basis_for_Security_Requirements/links/02bfe50d2367e32088000000.pdf

Robert Hurlbut (workshop presenter at SourceCon Seattle) https://roberthurlbut.com/Resources/2017/NYMJCSC/Robert-Hurlbut-NYMJCSC-Learning-About-Threat-Modeling-10052017.pdf (much the same content as given at Source)

Adam’s Threat modeling book

http://amzn.to/2z2cNI1 -- sponsored link

https://www.amazon.com/Threat-Modeling-Designing-Adam-Shostack/dp/1118809998/ref=mt_paperback?_encoding=UTF8&me=

Is the book still applicable?

New book

What traps do people fall into? Attacker-centered, asset-centered approaches

Close with “how do I get started on threat modeling?”

SecShoggoth’s Class “intro to Re”

Johari window? http://www.selfawareness.org.uk/news/understanding-the-johari-window-model

206 episodes available. A new episode about every 7 days averaging 61 mins duration .