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by nickpsecurity 4044 days ago
Appreciate the corroboration from the inside. I've suspected as much given that even the "controlled interfaces" are usually EAL4 at best. Did you know Navy people built an EAL7 IPsec VPN? I'm sure you can immediate realize (a) how awesome that is and (b) what value it has for our infrastructure/military. Yet, it got canceled before evaluation because brass said "no market for it." Virtually nobody in military or defense were interested in setting up highly secure VPN's.

Not a great state of affairs.
2 comments
Swannie 4043 days ago
I was shocked to read a EAL4 summary for a product that I know to be extremely hard to secure.

But of course, if you follow all the steps, that only the vendor knows, it can be EAL4. Just don't miss one of the 100s of settings... :/

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nickpsecurity 4043 days ago
Haha I feel you on that. It's very important for people to understand the basic way C.C. works: a security target or protection profile with the security features needed (can't leave anything out!); an EAL that shows they worked hard (or didn't) to implement them correctly. I'd explain what EAL4 means but Shapiro did a much better job below [1]. That most of the market has insufficient requirements with EAL4 or lower assurance shows what situation we're in. Hope you at least enjoyed the article as I haven't been able to do much about the market so far. ;)

[1] https://web.archive.org/web/20040214043848/http://eros.cs.jh...

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EtherealMind 4043 days ago
EAL criteria are so operationally restrictive that useful work is effectively prevented from happening. No one needs worse security, we need better security.
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nickpsecurity 4043 days ago
A number of us have conformed to higher ones on a budget with small teams. The highest one's are indeed a ton of work to accomplish yet there's been dozens of projects and several products with such correctness proofs. They figured by the 80's they needed their certified TCB to be re-usable in many situations to reduce the issue you mentioned. Firewalls, storage, communications, databases and so on all done with security dependent on same component. Modern work like SAFE (crash-safe.org) takes this closer to the limit by being able to enforce many policies with same mechanism.

So, your claim is understandable but incorrect. Useful work repeatedly got done at higher EAL's. It continues to get done. The real problem is (a) bad choice of mechanism for TCB and (b) bad evaluation process. Most of us skipped high-EAL evaluations for private evaluations instead by people working with us throughout the project. Saves so much time and money while providing even more peer review.

They really need to improve the evaluation process itself so it's not so cumbersome and update their guidance on best mechanisms for policy enforcement. Probably sponsor via funding some of them like they did in the old days. Fortunately, DARPA, NSF, and EU are doing this for many teams so we can just leverage what they create.

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