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can't deploy private CA with GPO

  • 18 wótegrona
  • 5 ma toś ten problem
  • 9 naglědow
  • Slědne wótegrono wót Mike Kaply

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Hi all

I'm trying to deploy my public CA to my Firefox on Windows enviroment. We need because I have set up a SSL inspection that resign public certs of websites in order to perform inspection.

The CA cert is deployed through a GPO to every computer's store, and then, a policy from custom Firefox ESR admx's is telling clients to use Windows certificate store. But no way is working. I can't see the cert imported.

My public CA cert is deployed in the store, inside the folders you can see in the screen and i checked every computer had received it correctly.

Please help!! Thanks

Hi all I'm trying to deploy my public CA to my Firefox on Windows enviroment. We need because I have set up a SSL inspection that resign public certs of websites in order to perform inspection. The CA cert is deployed through a GPO to every computer's store, and then, a policy from custom Firefox ESR admx's is telling clients to use Windows certificate store. But no way is working. I can't see the cert imported. My public CA cert is deployed in the store, inside the folders you can see in the screen and i checked every computer had received it correctly. Please help!! Thanks
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Wšykne wótegrona (18)

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Hello Dark345,

You posted this 5 days ago and haven't received any response yet (sorry .... )

I am a complete layman in this area, but my posting here just might promp the experts to come up with a perfect solution for you .....

In the mean time : this article is all I could find, and may not even come close to what you are looking for :

https://www.techrepublic.com/article/how-to-add-a-trusted-certificate-authority-certificate-to-chrome-and-firefox/

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unfortunately modifying security.enterprise_roots.enabled to TRUE is a legacy solution, it seems. Now with new Firefox ESR 60.X it can be deployed using Windows GPO.

Infact, setting the GPO to enabled, as I did, it triggers security.enterprise_roots.enabled to be TRUE and locked. But my certificates aren't imported.

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So a couple things could be going on here.

1. We weren't reading intermediate certificates from the Windows store (this has been fixed).

2. It could be a client certificate?

Could you try a currently nightly Firefox build and see if it's still a a problem? If so, we might want to look at the cert.

Thanks.

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See also:

Maybe also check the Browser Console for related message (don't know whether GPO errors show in this console).

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what do you mean by: 2. It could be a client certificate?

Do I have to import certificates in Computer's o User's store?

For the moment I'm off, I will try to log something in next weekend

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> what do you mean by: 2. It could be a client certificate?

It's probably not if you don't know what I meant :)

> Do I have to import certificates in Computer's o User's store?

Yes, and it sounds like you already have. The certificates from the OS will not show up in Firefox, they will just work.

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Yes, and it sounds like you already have. The certificates from the OS will not show up in Firefox, they will just work. </blockquote>

No, I mean, do Firefox read from User OR Computer store? Or both? Windows has two stores.

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> No, I mean, do Firefox read from User OR Computer store? Or both? Windows has two stores.

It should read from both. But you won't see them in Firefox settings.

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Maybe I figured it out... I placed my (intermediate) root CA public cert into the Computer's Personal Store, and now it seems to work..

Am I right to assume Firefox reads from the Personal store only, and not from the others ?

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We only read added certs, not built in certs, yes.

But it should read from the computer store.

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it's working on a W10 workstation, but on W7 clients not working, no matter where I put my certs

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What does about:policies show on your Windows 7 machines?

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It says it can't display the page

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about:policies requires Firefox 63 or later, so if these devices use Firefox 60 ESR then about:policies isn't available. This only leaves the Browser Console and the about:config to check the state of security.enterprise_roots.enabled and possibly the Certificate Manager.

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I tried both, no luck in finding some logs concerning the enforced policy..

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Dark345: So where are you with things right now? What's still not working?

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still no luck. GPO is active, w7 clients refused to load from windows computer store, I tried everything. i will try to load from a file instead.

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That's really odd. I'm betting it's related to intermediate certs. Would you consider opening a bugzilla bug so we could debug? We can provide instructions on how to log.

https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Gecko_Logging

set MOZ_LOG=pipnss:4,certverifier:4 set MOZ_LOG_FILE="c:\logs\log.txt"

See:

https://github.com/mozilla/policy-templates/issues/291