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RE: Reviewing security parameters
From: "Pitts, Christopher C." <Christopher.Pitts () HaverstickConsulting com>
Date: Fri, 16 Apr 2004 14:02:37 -0500

Do you guys think this script is safe?

To throw my hat in the ring.  I think you really want to ask multiple questions rather than the blanket question you 
have asked.  You'll get a much better result if you realize the different pieces to securing your application.  What 
you've given us is a partial design spec of your code.  You asked is this script safe.  While I can give you a 
*partial* answer of the *design* of the code based on what was presented, that won't really answer your question.

The questions I would ponder are...

Is the design free of obvious design flaws?

Is the development environment reasonable secure from tampering?

Is the implementation of the design free from syntactical and security flaws that would otherwise compromise a secure 

Is the deployment environment secure?

my .02c.  I get asked this question just about everytime I walk into an AppSec review for a client, and it takes a bit 
of work sometimes to get them to realize that asking the question is a bit like asking if their entire network is 


Christopher C. Pitts
Sr. Consultant, Application Security
Haverstick Consulting, Inc
Carmel, Indiana

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