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Forum to discuss Enterprise security using HPE Aruba Networking NAC solutions (ClearPass), Introspect, VIA, 360 Security Exchange, Extensions, and Policy Enforcement Firewall (PEF).
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Anyone using clearpass service certificates?

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  • 1.  Anyone using clearpass service certificates?

    Posted Aug 22, 2019 10:32 AM

    Real soon now we need to replace our radius.york.ac.uk certificate. Not only does it expire but . so does the CA chain. As I currently use the CloudPath ExpresConnect ES server to generate client certificates for EAP-TLS eduroam connectivity I thought I'd use CloudPath to generate a new "radius.york.ac.uk" cert for use on clearpass instead of the public one currently used.

     

    Rather than wait till the existing cert expired I thought I'd try and test stuff using the clearpass service certificate option So ......

     

    1). Clone our wired 802.1x auth clearpass service and rename

    2). Restrict its usage to my test switch by specifying a NAD-IP address

    3). Create and upload uoy-radius.york.ac.uk into clearpass specifying it as a service certificate

    4).Edit (1) to add a service certificate of uoy-radius.york.ac.uk

    5). Make sure the local root and intermediate CA certs are in my mac keystore ( which they are as I'm TLS'ing onto the wired network)

    6).Force a reauth on my Mac

     

    .....

    and the world ends!

    In clearpass I get the following, so I'm guessing that the client cannot validate the uoy-radius.york.ac.uk cert

     

    Is anyone using clearpass service certificates for this sort of thing ?

     

    Rgd

     

    Error Code:
    215
    Error Category:
    Authentication failure
    Error Message:
    TLS session error
     Alerts for this Request 
    RADIUS

    EAP-TLS: warning alert by client - close_notify
    TLS Handshake failed in SSL_read with error:140940E5:SSL routines:ssl3_read_bytes:ssl handshake failure
    eap-tls: Error in establishing TLS session

     



  • 2.  RE: Anyone using clearpass service certificates?

    EMPLOYEE
    Posted Aug 22, 2019 01:15 PM

    That is definitely a use case for the feature.



  • 3.  RE: Anyone using clearpass service certificates?

    Posted Aug 23, 2019 06:52 AM
    Cool!,
    Think I've an issue with how I'm configuring the client at the moment
    A


  • 4.  RE: Anyone using clearpass service certificates?
    Best Answer

    Posted Aug 23, 2019 07:07 AM

    .. and it works

     

    On test switch (ComWare)

     

    client receives a cert of the form cn=uoy-radius.york.ac.uk,....... local CA chain

     

    and performs eap-tls auth

     

    Connecting iMac to Aruba 2930 switch client receives cert of form radius.york.ac.uk .... public CA chain

     

    and still works ... simples ....

     

    A