Re: Securing Greenfield Service Provider Clients

[Garrett Skjelstad <garrett () skjelstad org>]

If this is really greenfield, consider taking a tenant approach to your
egress traffic handling, you mentioned a "black box with subscription",
then consider making that blackbox/traffic path be only available to
whatever tenant subscribes to the service, and if they want the SSL/MITM
decryption, then their local IT team (or yours) can handle the certificate
management and risk of doing such a thing.

Then all you need to worry about is managing the egress per tenant, which
can all be maintained separately from whatever services you're wrapping up
into that security service package.

Keep in mind your 80/20s :)

-Garrett


On Fri, Oct 9, 2020 at 12:28 PM Christopher J. Wolff <cjwolff () nola gov>
wrote:

> Dear Nanog;
>
>
>
> Hope everyone is getting ready for a good weekend.  I’m working on a
> greenfield service provider network and I’m running into a security
> challenge.  I hope the great minds here can help.
>
>
>
> Since the majority of traffic is SSL/TLS, encrypted malicious content can
> pass through even an “NGFW” device without detection and classification.
>
>
>
> Without setting up SSL encrypt/decrypt through a MITM setup and handing
> certificates out to every client, is there any other software/hardware that
> can perform DPI and/or ssl analysis so I can prevent encrypted malicious
> content from being downloaded to my users?
>
>
>
> Have experience with Palo and Firepower but even these need the MITM
> approach.  I appreciate any advice anyone can provide.
>
>
>
> Best,
>
> CJ