PCI: DSS

["Hill, Pete" <Pete.Hill () sit-up tv>]

Hi all,

Can anyone confirm for me what sort of workarounds there are concerning
PCI:DSS and application layer firewalls?

Requirement 6.6 of the standard states this:

6.6 Ensure that all web-facing applications are protected against known
attacks by applying either of
the following methods:
* Having all custom application code reviewed for common vulnerabilities
by an organization
that specializes in application security
* Installing an application layer firewall in front of web-facing
applications.
Note: This method is considered a best practice until June 30, 2008,
after which it becomes a
requirement.

We already have our custom code reviewed, but Im wondering if I
absolutely must sort out an application layer firewall or if there is a
workaround that would be acceptable for a level 1 merchant.

If there are any knowledgeable auditors (qsa etc) out there I'd really
appreciate your help on this one.

Many thanks
Pete


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