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This bug is created as a clone of upstream ticket:
https://fedorahosted.org/sssd/ticket/2920

This came up during an IRC discussion with Sumit as a cheap way to proceed towards fixing ticket #2707.

If we drop 'enable_only = sssd' from localauth_plugin. Then the krb5 default should be used after the SSSD plugin does not give a definitive result.

Upstream ticket:
https://fedorahosted.org/sssd/ticket/2788

We already did some improvements to the localauth plugin logic, this ticket is an incremental improvement planned for the next version

master: 2658ad37cd04f211aa28b1d71acb27c4edfb03da

pls share the steps to verify this bugzilla?

Just check if there is no line 'enable_only=sssd' in /var/lib/sss/pubconf/krb5.include.d/localauth_plugin.

Then content should just look like

[plugins]
 localauth = {
  module = sssd:/usr/lib/sssd/modules/sssd_krb5_localauth_plugin.so
 }


or ../lib64/.. depending on the platform

HTH

bye,
Sumit

Verified with 
r7-permanent ~]# rpm -q sssd 
sssd-1.15.2-33.el7.x86_64

[root@shr-r7-permanent ~]# cat /var/lib/sss/pubconf/krb5.include.d/localauth_plugin
[plugins]
 localauth = {
  module = sssd:/usr/lib64/sssd/modules/sssd_krb5_localauth_plugin.so
 }

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2017:2294