Full Disclosure mailing list archives

Re: Sony: No firewall and no patches


From: "Ivan ." <ivanhec () gmail com>
Date: Tue, 10 May 2011 16:48:45 +1000

doesn't it also mandate the encryption of CC info? requirement 4 Encrypting
and Storing Credit Card Data

plenty of reports that the data was not encrypted, and also plenty that say
it was.

On Tue, May 10, 2011 at 4:40 PM, Tracy Reed <treed () ultraviolet org> wrote:

On Tue, May 10, 2011 at 05:07:39AM +0000, Dobbins, Roland spake thusly:
Stateful firewalls have no place in front of servers, where every
incoming
request is unsolicited, and therefore there is no state to inspect in the
first place.

The PCI SSC requires a stateful firewall in front of servers processing
credit
card data. Not only to block inbound access to any ports or services
accidentally exposed but the outbound policy must also be default deny to
make
it more difficult to exfiltrate stolen data. If you have traffic going out
to a
high numbered port and you are not keeping state how do you know if that is
a
reply packet to an existing inbound connection or if it is an unauthorized
outbound connection?

Of course, the network should be properly segmented so that only the
servers
processing payment data are in-scope. You may be right about not putting a
stateful firewall in front of the gaming servers (in Sony's case).

Where stateful firewalls in front of Web servers are incorrectly mandated
by
various regulatory frameworks, making use of mod_security or its
equivalent
on the Web servers themselves ensures compliance without creating a DDoS
chokepoint.

If you don't have a stateful firewall blocking outbound connections why
would
the traffic even have to go through mod_security?

--
Tracy Reed

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_______________________________________________
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