Change in sudo behaviour in RHEL 7.6

Solution Verified - Updated -

Issue

  • After an upgrade from an older RHEL version to RHEL 7.6, sudopolicies defined for a user in /etc/sudoers stop working.
  • Users attempting to perform sudo are no longer able to do so due to permission denied error from PAM.

Environment

  • Red Hat Enterprise Linux 7.6.
  • sudo-1.8.23-1.el7 and above.

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