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    Radius authentication passphrase length

    Scheduled Pinned Locked Moved Captive Portal
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    • B
      billm
      last edited by

      Any debug from the Encrypt() function?  I tested it with 15-17 character passwords and it seemed to do the right thing there.  I don't have a way to test against RADIUS, but the function looks good now :-/

      –Bill

      pfSense core developer
      blog - http://www.ucsecurity.com/
      twitter - billmarquette

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      • B
        buraglio
        last edited by

        No real debug info from the Encrypt() function.  I can dig a little deeper.  I can also give you access to the box if you'd like.

        https://www.forwardingplane.net/

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        • B
          buraglio
          last edited by

          So it does allow for shorter paswords but generates some errors:

          
          radius-port: 1812
          radius-host: 10.10.102.2
          username: blahblah
          
          key: TestRadiusKey
          password: testpasswd
          username is blahblah with len 8 encryptedpassword is šJ»[à6%¤2ÍǃhÄ with len 10 nasHostname is portal-a.lab.local with len 18 
          writing 95 bytes
          
          Warning: Cannot modify header information - headers already sent by (output started at /usr/local/captiveportal/radius_authentication.inc:48) in /usr/local/captiveportal/index.php on line 335 
          radius-port: 1813
          radius-host: 10.10.2.25
          username: blahblah
          
          username is blahblah with len 8 nasHostname is portal-a.lab.local with len 18 
          writing 113 bytes
          [/code]
          
          The errors on the RADIUS server for a >16 char passphrase are as i'd expect for an incorrect passphrase.  
          
          

          https://www.forwardingplane.net/

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          • B
            billm
            last edited by

            @buraglio:

            No real debug info from the Encrypt() function.  I can dig a little deeper.  I can also give you access to the box if you'd like.

            It'd be helpful to be able to point at a radius server with an account that has a 17 (or larger) character password.  I've got no way of testing that I'm following the RFC correctly - 16 and under still work with the new code I assume?

            –Bill

            pfSense core developer
            blog - http://www.ucsecurity.com/
            twitter - billmarquette

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            • B
              buraglio
              last edited by

              It authenticates with the new code with a RADIUS box with >=16 passwords but the redirection after fails with some php errors.  I assume that is a cosmetic fix and not critical.  I can work on getting a radius box up probably tomorrow if that'd be helpful.

              https://www.forwardingplane.net/

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              • B
                billm
                last edited by

                @buraglio:

                It authenticates with the new code with a RADIUS box with >=16 passwords but the redirection after fails with some php errors.  I assume that is a cosmetic fix and not critical.  I can work on getting a radius box up probably tomorrow if that'd be helpful.

                So it now authenticates accounts with > 16 char passwords?  And authenticates accounts with < 16 char passwords?  Only a PHP error to cleanup?  Good news.  Maybe the PHP error is coming from the $debug define.

                –Bill

                pfSense core developer
                blog - http://www.ucsecurity.com/
                twitter - billmarquette

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                • B
                  buraglio
                  last edited by

                  @billm:

                  @buraglio:

                  It authenticates with the new code with a RADIUS box with >=16 passwords but the redirection after fails with some php errors.  I assume that is a cosmetic fix and not critical.  I can work on getting a radius box up probably tomorrow if that'd be helpful.

                  So it now authenticates accounts with > 16 char passwords?  And authenticates accounts with < 16 char passwords?  Only a PHP error to cleanup?  Good news.  Maybe the PHP error is coming from the $debug define.

                  –Bill

                  Actually it only authenticates 16 char or below passwords.  I mistyped.  Sorry.

                  https://www.forwardingplane.net/

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                  • B
                    buraglio
                    last edited by

                    Has anyone else noticed this behavior?  Would it be beneficial for me to set up a RADIUS box and give you access to test against?

                    https://www.forwardingplane.net/

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                    • S
                      sullrich
                      last edited by

                      @buraglio:

                      Has anyone else noticed this behavior?  Would it be beneficial for me to set up a RADIUS box and give you access to test against?

                      Yes, please do.  Bill does not have access to a tesitng environment for this.

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                      • B
                        billm
                        last edited by

                        @buraglio:

                        Has anyone else noticed this behavior?  Would it be beneficial for me to set up a RADIUS box and give you access to test against?

                        If you can provide me a radius target I can test this myself.

                        –Bill

                        pfSense core developer
                        blog - http://www.ucsecurity.com/
                        twitter - billmarquette

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                        • B
                          buraglio
                          last edited by

                          I'll work on this this afternoon and post when it's done.

                          https://www.forwardingplane.net/

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                          • B
                            buraglio
                            last edited by

                            @buraglio:

                            I'll work on this this afternoon and post when it's done.

                            I have this up, I'm still verifying correct functionality.  How would you like to go about testing?

                            https://www.forwardingplane.net/

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                            • B
                              buraglio
                              last edited by

                              ok, I have this working whenever you'd like to start working on it.

                              https://www.forwardingplane.net/

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                              • B
                                billm
                                last edited by

                                @buraglio:

                                ok, I have this working whenever you'd like to start working on it.

                                Can you PM me an IP to test against along with two usernames, one with a 15 char password, one with a 20 char password.  I can provide a static IP if needed that I'll be testing from.

                                –Bill

                                pfSense core developer
                                blog - http://www.ucsecurity.com/
                                twitter - billmarquette

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                                • B
                                  buraglio
                                  last edited by

                                  Sent.

                                  https://www.forwardingplane.net/

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                                  • B
                                    billm
                                    last edited by

                                    OK, fixed.  Thanks!

                                    Grab http://www.pfsense.org/~billm/radius_authentication.inc.txt until this is commited.

                                    –Bill

                                    pfSense core developer
                                    blog - http://www.ucsecurity.com/
                                    twitter - billmarquette

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                                    • B
                                      billm
                                      last edited by

                                      @billm:

                                      OK, fixed.  Thanks!

                                      Grab http://www.pfsense.org/~billm/radius_authentication.inc.txt until this is commited.

                                      –Bill

                                      I also verified that the code in HEAD works, it's only RELENG_1 that's affected by this.

                                      –Bill

                                      pfSense core developer
                                      blog - http://www.ucsecurity.com/
                                      twitter - billmarquette

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                                      • B
                                        buraglio
                                        last edited by

                                        This works like a dream now, even in my wacky kerberos backended setup. 
                                        Thanks for all the hard work, it is appreciated.

                                        nb

                                        https://www.forwardingplane.net/

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                                        • S
                                          sullrich
                                          last edited by

                                          So what exactly should I MFC?

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                                          • B
                                            billm
                                            last edited by

                                            @sullrich:

                                            So what exactly should I MFC?

                                            This:
                                            http://www.pfsense.org/~billm/radius_authentication.inc.diff.txt

                                            –Bill

                                            pfSense core developer
                                            blog - http://www.ucsecurity.com/
                                            twitter - billmarquette

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