From: wirepair (wirepair@roguemail.net)
Date: Thu Mar 18 2004 - 19:21:17 EST
I've run into it a lot, and I have the same concerns you do. Core Processors *should* be restricted
especially if they do not provide any type of reports of their own internal security audits.
Usually we ask the client to see if the core processor has done any assessments and if so give the
client (the bank) the report, or at least parts of it. Usually the processor really only needs access
to the teller machines and any other hosts doing general ledger. (I usually see this just
being an FTP server.) Other than those hosts, I do not see any need for the processor to have any extended
access. The client needs to identify what hosts/servers require this access and by either firewalling
or strict ACL's (VLAN's are good) limit the access given. This really shouldn't be a problem as the Core Processor shouldn't
ever notice these changes.
-wire
On Wed, 17 Mar 2004 09:06:34 -0500
"Dante Mercurio" <Dante@webcti.com> wrote:
>I'm looking for some feedback from other people who conduct security
>audits and penetration tests on banks.
>
>One of the network aspects I come across a lot is a direct line to their
>transaction processor. This is often in the form of a point-to-point or
>frame line that is dropped onsite with a router controlled by the
>processor, not the bank. I always point out that this is a network
>security risk, as there is no control from the bank side regarding the
>access provided through that line, and recommend an ACL or departmental
>firewall at that point.
>
>As always, the administrators look at me like I recommended them selling
>their firstborn. The relationship between the bank and their processor
>is very symbiotic as the bank couldn't even exist without their
>services, yet my perspective is any outside system should go through
>some level of border security in order to monitor and restrict traffic.
>
>Anyone run into this? How do you handle?
>
>M. Dante Mercurio
>dante@webcti.com
>Consulting Group Manager
>Continental Technologies, Inc
>www.webcti.com
>
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