Re: Firewalls - ITSEC Rating?

From: John Alsop (jalsopat_private)
Date: Fri Feb 04 2000 - 10:39:51 PST

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    At 08:30 AM 02/03/2000 -0500, Marcus J. Ranum wrote:
    
    >I'm sure that many on this list will be shocked to hear me say
    >this, but the ICSA firewall product certification is orders of
    >magnitude more valuable to real customers than ITSEC evaluation.
    
    My company (BorderWare Technologies Inc.) develops a firewall that is
    both ICSA and EAL4 certified, and based on our experience with the
    process, I must disagree with the above statement.
    
    ICSA certification consists primarily of "black box" testing. i.e. a set
    of tests is performed against the target firewall, and the results are
    used to determine whether it meets the criteria defined by ICSA.  There
    are 42 firewalls listed as being certified by ICSA as of Jan 31, ranging
    in functionality from Cisco's IOS firewall feature set all the way to
    high-end firewalls. ICSA certification does not include evaluation of
    the vendor's internal processes or the vendor specific feature and
    function claims.
    
    Common Criteria certification, which is the latest incarnation of ITSEC,
    involves a much more rigorous and in-depth analysis of the target
    product.  This includes design and architecture, development processes
    and security, software QA processes, and obviously, penetration testing.
    
    Unlike the older ITSEC certification process, the Common Criteria
    process involves evaluating the target product against objective
    security parameters for the type of product, in addition to vendor
    specific claims.
    
    Paul Emerson wrote:
    > ITSEC is really quite pitiful. For example FW-1 was evaluated and 
    > passed E-3, but the GUI was not included with the target.  So I guess 
    > in order to use FW-1 as evaluated the GUI should not be used.
    
    This is a valid comment, and illustrates the point that customers should
    not blindly accept any certification without checking what is actually
    covered.
    
    In the case of the BorderWare Firewall Server, we have published the
    scope of our EAL4 certification for public review on our web site
    (http://www.borderware.com/certifications.html).  Both the GUI and
    underlying secure operating system are included in our certification.
    i.e. the product in its normally used mode of operation on generic Intel
    hardware is fully certified.
    
    To go back to Marcus' observation, I would certainly agree that EAL4
    certification is orders of magnitude harder and more expensive to get
    than ICSA; however it is possible to certify a fully functional
    commercial firewall, and the result does provide a significantly higher
    level of assurance to customers.
    
    --
    John Alsop
    President & CEO
    Borderware Technologies Inc.
    jalsopat_private
    Tel: 905-804-1855 x223 Fax: 905-804-1865
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