[development] Process and technology questionnaire

Khalid Baheyeldin kb at 2bits.com
Tue Mar 31 14:43:25 UTC 2009


I am copying the security team as well in case someone there is interested
in getting in touch with you.

This page http://drupal.org/security-team and the pages under it (linked at
the bottom) will also provide you with some more information about the
security process within Drupal.

And on this page you will find the security advisories, broken into
core/contrib/public service announcements


On Tue, Mar 31, 2009 at 8:53 AM,

> Hello drupal developers,
> I'm in the process of writing my diploma thesis on the prevention of
> web application security vulnerabilities and I'd like to know a bit
> about your fine project from the developer's view. It would be great
> if you could take a couple of minutes and think about the questions
> below.
> The questions are mostly open-ended. Not all may apply to all
> developers, but I've chosen to not only address project leads.
> Elaborate and skip questions at will.
> Thank you very much in advance. I will provide you with the
> results of my thesis when it's done it you want. There will probably
> be some findings about what can be done to prevent security
> vulnerabilities, in particular XSS and SQL injections in open source
> web applications.
> Florian
> The questions:
> About technical aspects:
> - Are you using a web application framework? Which one?
> - Do you use explicit data modeling for all business objects in the
>  application?
> - Do you have a specific layers for input/output validation/filtering?
>  (If applicable) What does the input/output layer do (respectively)?
>  How? Are you using external libraries? Why? Why not? (for HTML
>  sanitation. object-relational mappers, database abstractions with
>  prepared statements)?
> - (If applicable) What responsibilities do the input/output layers
>  have, respectively?
> - How do you ensure that all input passed through validation/
>  filtering? Do you have an API that must be used?
> - Do you provide services to independently developed modules/
>  components? Is there a defined API?
> - Which other external libraries do you use?
> About the development process:
> - Is there public documentation about the responsibilities of the
>  input/output layers?
> - Is there public documentation about *when* input/output validation/
>  filtering should happen? (Like: "output filtering must always happen
>  in the method that renders the data")
> - Do you have automatic tests for the whole system?
> Bonus question:
> - Do you do manual code review?

Khalid M. Baheyeldin
2bits.com, Inc.
Drupal optimization, development, customization and consulting.
Simplicity is prerequisite for reliability. --  Edsger W.Dijkstra
Simplicity is the ultimate sophistication. --   Leonardo da Vinci
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