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    OpenVPN + wrong CRL shown - revoking Certs doesn't work in all cases

    Scheduled Pinned Locked Moved 2.0-RC Snapshot Feedback and Problems - RETIRED
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    • N
      Nachtfalke
      last edited by

      Hi,

      I did a test today with the CRL but with no success. With the snapshot from today there isn't an empty server2.crl-verify anymore, but there is still the problem that I could not connect to an OpenVPN server when I added there a CRL.

      I didn't findeany time to do a complete reinstallation of my pfsense so this could be perhaps the problem.

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      • N
        Nachtfalke
        last edited by

        Hi jimp,

        bad news :(

        I did a complete fresh installation of pfsense and I am on 2.0-RC3 (amd64) built on Sun Jul 3 04:02:48 EDT 2011

        I created a new CA, created 2 certs (server + client) and configured a new OpenVPN server. I just can connect if I do not select any CRL in the OpenVPN Server configuration.

        I opened an other thread on friday because I didn't remember this thread. Perhaps this will help you a little bit to resolve this error.
        http://forum.pfsense.org/index.php/topic,38466.0.html

        Thanks for your help!

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        • jimpJ
          jimp Rebel Alliance Developer Netgate
          last edited by

          So if you revoke a certificate on the CRL, does it work? Does it still just not like an empty CRL? (Well, it's a valid CRL, just doesn't have any certificates revoked in it)

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          • N
            Nachtfalke
            last edited by

            I know what you mean - and - you are right.
            I created a new certificate and revoked it - so the CRL isn't empty anymore.
            An now I can connect with an other certificate which isn't revoked.

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            • jimpJ
              jimp Rebel Alliance Developer Netgate
              last edited by

              What if you then remove that certificate from the CRL so it's "empty" again?

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              • N
                Nachtfalke
                last edited by

                @jimp:

                What if you then remove that certificate from the CRL so it's "empty" again?

                Sorry for my late reply.

                I created a new OpenVPN server, server cert, two user certs. One for use and one for putting into the crl.
                First try with the default empty CRL: FAILED
                second try with a revoked cert in the CRL: WORKED
                third try with cancelling the revocation and an empty CRL again: WORKED

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                • E
                  eskild
                  last edited by

                  I have also tested with an empty CRL today, and the OpenVPN entity stopped. I have not tested with entries in CRL.

                  Jul 13 16:27:15 openvpn[7903]: 192.168.123.68:1194 /usr/local/sbin/ovpn-linkdown ovpns1 1500 1558 192.168.102.1 192.168.102.2 init
                  Jul 13 16:27:15 openvpn[7903]: 192.168.123.68:1194 Exiting
                  Jul 13 16:27:15 openvpn[7903]: 192.168.123.68:1194 CRL: cannot read CRL from file /var/etc/openvpn/server1.crl-verify
                  Jul 13 16:27:15 openvpn[7903]: 192.168.123.68:1194 LZO compression initialized
                  Jul 13 16:27:15 openvpn[7903]: 192.168.123.68:1194 Re-using SSL/TLS context

                  2.0-RC3 (i386)
                  built on Tue Jul 12 21:45:04 EDT 2011

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                  • jimpJ
                    jimp Rebel Alliance Developer Netgate
                    last edited by

                    Is the CRL file it mentions empty (zero bytes) when it fails, or does it have something in it?

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                    • E
                      eskild
                      last edited by

                      Yes, it seems to be 0 byte:

                      -rw–-----  1 root  wheel    0 Jul 13 16:27 server1.crl-verify
                      -rw-------  1 root  wheel    0 Jul 13 09:04 server2.crl-verify

                      BR,
                      //Eskild

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                      • jimpJ
                        jimp Rebel Alliance Developer Netgate
                        last edited by

                        That would be the problem then.

                        I thought I had committed a fix for that before, I'll have to look into it again. Might be a couple days though.

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                        • jimpJ
                          jimp Rebel Alliance Developer Netgate
                          last edited by

                          Try it with these changes:

                          https://github.com/bsdperimeter/pfsense/commit/2ce206b048e8496e84f732556219e18290c5481c

                          (Or wait for a snapshot that includes those changes)

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                          • E
                            eskild
                            last edited by

                            Thanks jimp,
                            the CRL is no longer empty, and works as expected.

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                            • N
                              Nachtfalke
                              last edited by

                              @eskild:

                              Thanks jimp,
                              the CRL is no longer empty, and works as expected.

                              Did you try this with a new created CRL which has no certificates revoked in it ? (You remember, creating CRL, revoke a cert, cancel the revocation and then testing?)

                              I am at home for some days now and it wouldn't be fine, if I crash my OpenVPN and could not access the machine anymore untill I am back at work ;-)

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                              • jimpJ
                                jimp Rebel Alliance Developer Netgate
                                last edited by

                                @Nachtfalke:

                                Did you try this with a new created CRL which has no certificates revoked in it ? (You remember, creating CRL, revoke a cert, cancel the revocation and then testing?)

                                I am at home for some days now and it wouldn't be fine, if I crash my OpenVPN and could not access the machine anymore untill I am back at work ;-)

                                I did, and the CRL is no longer empty even when it has no certificates in it.

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                                • N
                                  Nachtfalke
                                  last edited by

                                  Hi,

                                  I am using amd64 snapshot from 15 july.

                                  I know there were some fixes before this snapshot. I created a cert some days before this snapshot called "test". I revoked it with the according CRL and it worked. No I wanted to cancel the revocation and wanted to delete the Cert "test" from the according CRL. It couldn't be deleted. It still exists there if I am deleteing it from "certificates".

                                  If I create a new cert with same CA and same CN called "test" it appears again and as revoked. Then I am still not able to delete this cert from the CRL.

                                  Certs.jpg
                                  Certs.jpg_thumb
                                  CRL.jpg
                                  CRL.jpg_thumb

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                                  • jimpJ
                                    jimp Rebel Alliance Developer Netgate
                                    last edited by

                                    So you click the "x" on the CRL view, and what happens? Nothing? An error? Something else?

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                                    • N
                                      Nachtfalke
                                      last edited by

                                      There comes a question if I would like to delete the cert from the CRL. I click OK. Then the cert disappears from the list. If I click again on the "Certificate revocation" tab, then the cert is again in the crl.

                                      No visible error message.

                                      CRL.jpg
                                      CRL.jpg_thumb

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                                      • jimpJ
                                        jimp Rebel Alliance Developer Netgate
                                        last edited by

                                        Should be OK now, I just pushed a fix.

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                                        • N
                                          Nachtfalke
                                          last edited by

                                          Hi,

                                          I did some tests with 2.0-RC3 (amd64) built on Thu Jul 28 05:40:09 EDT 2011.

                                          Deleting revoked certs of a CRL is working now as expected.
                                          Allow and deny access is working as it should. I tested it several times with revoking a cert and then deleting the revocation.

                                          Thanks jimp!

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