apparmor.d/profiles/unix-chkpwd

# vim:syntax=apparmor
# ------------------------------------------------------------------
#
#    Copyright (C) 2019-2021 Mikhail Morfikov
#
#    This program is free software; you can redistribute it and/or
#    modify it under the terms of version 2 of the GNU General Public
#    License published by the Free Software Foundation.
#
# ------------------------------------------------------------------

abi <abi/3.0>,

include <tunables/global>

@{exec_path} = /{usr/,}sbin/unix_chkpwd
profile unix-chkpwd @{exec_path} {
  include <abstractions/base>
  include <abstractions/nameservice-strict>

  # To write records to the kernel auditing log.
  capability audit_write,

  network netlink raw,

  @{exec_path} mr,

  /etc/shadow r,

  # file_inherit
  owner /dev/tty[0-9]* rw,

  include if exists <local/unix-chkpwd>
}