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  1. RHEL
  2. RHEL-4874

krb5kdc fails to start when pkinit and otp auth type is enabled in ipa

    • ipa-4.9.13-6.module+el8.10.0+21338+730b6341
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      Description of problem:krb5kdc fails to start when pkinit and otp auth type is enabled in ipa

      Version-Release number of selected component (if applicable):
      OS Version: rhel8.5
      IPA Version: ipa-server-4.9.6-6.module+el8.5.0+12660+88e16a2c.x86_64
      Kerberos: krb5-server-1.18.2-14.el8.x86_64

      How reproducible:
      [root@example ~]# ipa config-mod --user-auth-type=pkinit

      ipa cannot be started

      [root@example ~]# ipactl restart
      Restarting Directory Service
      Restarting krb5kdc Service
      Failed to restart krb5kdc Service
      Shutting down

      ---------------------------
      Steps to Reproduce:

      [root@example ~]# ipa config-mod --user-auth-type=

      {otp,pkinit}
      Maximum username length: 32
      Maximum hostname length: 64
      Home directory base: /home
      Default shell: /bin/sh
      Default users group: ipausers
      Default e-mail domain: test.realm
      Search time limit: 2
      Search size limit: 100
      User search fields: uid,givenname,sn,telephonenumber,ou,title
      Group search fields: cn,description
      Enable migration mode: FALSE
      Certificate Subject base: O=TEST.REALM
      Password Expiration Notification (days): 4
      Password plugin features: AllowNThash, KDC:Disable Last Success
      SELinux user map order: guest_u:s0$xguest_u:s0$user_u:s0$staff_u:s0-sx0:c0.c1023$sysadm_u:s0-s0:c0.c1023$unconfined_u:sx0-s0:c0.c1023
      Default SELinux user: unconfined_u:s0-s0:c0.c1023
      Default PAC types: MS-PAC, nfs:NONE
      Default user authentication types: otp, pkinit
      IPA masters: example.test.realm
      IPA master capable of PKINIT: example.test.realm
      IPA CA servers: example.test.realm
      IPA CA renewal master: example.test.realm
      IPA DNS servers: example.test.realm

      [root@example ~]# ipactl restart
      Restarting Directory Service
      Restarting krb5kdc Service
      Failed to restart krb5kdc Service
      Shutting down

      [root@example ~]# ipactl status
      Directory Service: RUNNING
      krb5kdc Service: STOPPED
      kadmin Service: STOPPED
      named Service: STOPPED
      httpd Service: STOPPED
      ipa-custodia Service: STOPPED
      ^CCancelled.
      ------

      And following logs can be seen in the krb5kdc.log during this time.

      ------
      May 02 22:40:41 example.test.realm krb5kdc[103666](Error): Cannot find master key record in database - while fetching master keys list for realm TEST.REALM
      May 02 22:43:53 example.test.realm krb5kdc[103761](Error): Cannot find master key record in database - while fetching master keys list for realm TEST.REALM
      May 02 22:44:14 example.test.realm krb5kdc[103837](Error): Cannot find master key record in database - while fetching master keys list for realm TEST.REALM
      .

      Actual results:
      We must enforce 2FA authentication upon all users in IdM as per our customers' requirements. Some of them use OTP tokens and others use Smartcards.

      Thus we need to set user auth types to allow either OTP tokens or Smartcards:

      [root@example ~]# ipa config-mod --user-auth-type={otp,pkinit}

      The feature already exists in rhel8 but setting user-auth-type to pkinit causes krb5kdc to malfunction

      Expected results:

      krb5kdc should start along with IPA

      Additional info:

            abokovoy@redhat.com Alexander Bokovoy
            rhn-support-rakkumar Rakesh Kumar
            Alexander Bokovoy Alexander Bokovoy
            Michal Polovka Michal Polovka
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              Created:
              Updated:
              Resolved: