freebsd-skq/etc/periodic/security/110.neggrpperm
asomers d1f46e5712 Fix periodic scripts when an NFS mount covers a local mount
100.chksetuid and 110.neggrpperm try to search through all UFS and ZFS
filesystems. But their logic contains an error. They also search through
remote filesystems that are mounted on top of the root of a local
filesystem. For example, if a user installs a FreeBSD system with the
default ZFS layout, he'll get a zroot/usr/home filesystem. If he then mounts
/usr/home over NFS, these scripts would search through /usr/home.

MFC after:	4 weeks
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D7482
2016-09-20 18:47:33 +00:00

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#!/bin/sh -
#
# Copyright (c) 2001 The FreeBSD Project
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
# If there is a global system configuration file, suck it in.
#
if [ -r /etc/defaults/periodic.conf ]
then
. /etc/defaults/periodic.conf
source_periodic_confs
fi
security_daily_compat_var security_status_neggrpperm_enable
rc=0
if check_yesno_period security_status_neggrpperm_enable
then
echo ""
echo 'Checking negative group permissions:'
MP=`mount -t ufs,zfs | awk '$0 !~ /no(suid|exec)/ { print $3 }'`
n=$(find -sx $MP /dev/null \( ! -fstype local \) -prune -o -type f \
\( \( ! -perm +010 -and -perm +001 \) -or \
\( ! -perm +020 -and -perm +002 \) -or \
\( ! -perm +040 -and -perm +004 \) \) \
-exec ls -liTd \{\} \+ | tee /dev/stderr | wc -l)
[ $n -gt 0 ] && rc=1 || rc=0
fi
exit $rc