| + |
#!/bin/sh -f
|
| + |
#
|
| + |
# Copyright (c) 2004 Oliver Eikemeier. All rights reserved.
|
| + |
# Copyright (c) 2014 Matthew Seaman <matthew@FreeBSD.org>
|
| + |
# Copyright (c) 2016 Miroslav Lachman <000.fbsd@quip.cz>
|
| + |
#
|
| + |
# 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.
|
| + |
#
|
| + |
# 3. Neither the name of the author nor the names of its contributors may be
|
| + |
# used to endorse or promote products derived from this software without
|
| + |
# specific prior written permission.
|
| + |
#
|
| + |
# THIS SOFTWARE IS PROVIDED "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
|
| + |
# COPYRIGHT OWNER 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 [ -r /etc/defaults/periodic.conf ]; then
|
| + |
. /etc/defaults/periodic.conf
|
| + |
source_periodic_confs
|
| + |
fi
|
| + |
|
| + |
: ${security_status_baseaudit_enable:=YES}
|
| + |
: ${security_status_baseaudit_period:=daily}
|
| + |
: ${security_status_baseaudit_quiet:=NO}
|
| + |
: ${security_status_baseaudit_chroots=$pkg_chroots}
|
| + |
: ${security_status_baseaudit_jails=$pkg_jails}
|
| + |
: ${security_status_baseaudit_jails_ignore+=""}
|
| + |
: ${security_status_baseaudit_expiry:=2}
|
| + |
|
| + |
security_daily_compat_var security_status_baseaudit_enable
|
| + |
security_daily_compat_var security_status_baseaudit_quiet
|
| + |
security_daily_compat_var security_status_baseaudit_chroots
|
| + |
security_daily_compat_var security_status_baseaudit_jails
|
| + |
security_daily_compat_var security_status_baseaudit_expiry
|
| + |
|
| + |
# Compute PKG_DBDIR from the config file.
|
| + |
pkgcmd=%prefix%/sbin/pkg
|
| + |
PKG_DBDIR=`${pkgcmd} config PKG_DBDIR`
|
| + |
auditfile="${PKG_DBDIR}/vuln.xml"
|
| + |
|
| + |
audit_base() {
|
| + |
local pkgargs="$1"
|
| + |
local basedir="$2"
|
| + |
local rc
|
| + |
local then
|
| + |
local now
|
| + |
local usrlv
|
| + |
local krnlv
|
| + |
local strlen
|
| + |
local chrootv
|
| + |
local jailv
|
| + |
local jid
|
| + |
|
| + |
# get version from chroot
|
| + |
if [ -n "`echo "$pkgargs" | egrep '^-c'`" ]; then
|
| + |
if [ -x "$basedir/bin/freebsd-version" ]; then
|
| + |
chrootv=$($basedir/bin/freebsd-version -u)
|
| + |
## safety check - strlen
|
| + |
strlen=$(echo "$chrootv" | wc -c)
|
| + |
if [ $strlen -gt 17 -o $strlen -lt 11 ]; then
|
| + |
echo "Wrong version string, cannot run audit"
|
| + |
return 3
|
| + |
fi
|
| + |
usrlv=$(echo $chrootv | sed 's,^,FreeBSD-,;s,-RELEASE-p,_,;s,-RELEASE$,,')
|
| + |
else
|
| + |
echo "Cannot guess chroot version"
|
| + |
return 3
|
| + |
fi
|
| + |
# get version from jail
|
| + |
elif [ -n "`echo "$pkgargs" | egrep '^-j'`" ]; then
|
| + |
jid=$(echo "$pkgargs" | awk '$1 ~ /^-[j]/ { print $2 }')
|
| + |
jailv=$(jexec $jid freebsd-version -u)
|
| + |
## safety check - strlen
|
| + |
strlen=$(echo "$jailv" | wc -c)
|
| + |
if [ $strlen -gt 17 -o $strlen -lt 11 ]; then
|
| + |
echo "Wrong version string, cannot run audit"
|
| + |
return 3
|
| + |
fi
|
| + |
usrlv=$(echo $jailv | sed 's,^,FreeBSD-,;s,-RELEASE-p,_,;s,-RELEASE$,,')
|
| + |
# get version from host
|
| + |
else
|
| + |
usrlv=$(freebsd-version -u | sed 's,^,FreeBSD-,;s,-RELEASE-p,_,;s,-RELEASE$,,')
|
| + |
fi
|
| + |
|
| + |
then=`stat -f '%m' "${basedir}${auditfile}" 2> /dev/null` || rc=3
|
| + |
now=`date +%s` || rc=3
|
| + |
# Add 10 minutes of padding since the check is in seconds.
|
| + |
if [ $rc -ne 0 -o \
|
| + |
$(( 86400 \* "${security_status_baseaudit_expiry}" )) \
|
| + |
-le $(( ${now} - ${then} + 600 )) ]; then
|
| + |
# When non-interactive, sleep to reduce congestion on mirrors
|
| + |
anticongestion
|
| + |
f="-F"
|
| + |
else
|
| + |
echo -n 'Database fetched: '
|
| + |
date -r "${then}" || rc=3
|
| + |
fi
|
| + |
|
| + |
# cannot check kernel in jail or chroot
|
| + |
if [ -z "`echo "$pkgargs" | egrep '^-[cj]'`" -a `sysctl -n security.jail.jailed` = 0 ]; then
|
| + |
krnlv=$(freebsd-version -k | sed 's,^,FreeBSD-kernel-,;s,-RELEASE-p,_,;s,-RELEASE$,,')
|
| + |
${pkgcmd} audit $f $q $krnlv || { rc=$?; [ $rc -lt 3 ] && rc=3; }
|
| + |
fi
|
| + |
|
| + |
${pkgcmd} audit $f $q $usrlv || { rc=$?; [ $rc -lt 3 ] && rc=3; }
|
| + |
|
| + |
return $rc
|
| + |
}
|
| + |
|
| + |
# Use $pkg_chroots to provide a default list of chroots, and
|
| + |
# $pkg_jails to provide a default list of jails (or '*' for all jails)
|
| + |
# for all pkg periodic scripts, or set
|
| + |
# $security_status_baseaudit_chroots and
|
| + |
# $security_status_baseaudit_jails for this script only.
|
| + |
|
| + |
audit_base_all() {
|
| + |
local rc
|
| + |
local last_rc
|
| + |
local jails
|
| + |
|
| + |
# We always show audit results for the base system, but only print
|
| + |
# a banner line if we're also showing audit results for any
|
| + |
# chroots or jails.
|
| + |
|
| + |
if [ -n "${security_status_baseaudit_chroots}" -o \
|
| + |
-n "${security_status_baseaudit_jails}" ]; then
|
| + |
echo "Host system:"
|
| + |
fi
|
| + |
|
| + |
audit_base '' ''
|
| + |
last_rc=$?
|
| + |
[ $last_rc -gt 1 ] && rc=$last_rc
|
| + |
|
| + |
for c in $security_status_baseaudit_chroots ; do
|
| + |
echo
|
| + |
echo "chroot: $c"
|
| + |
audit_base "-c $c" $c
|
| + |
last_rc=$?
|
| + |
[ $last_rc -gt 1 ] && rc=$last_rc
|
| + |
done
|
| + |
|
| + |
case $security_status_baseaudit_jails in
|
| + |
\*)
|
| + |
jails=$(jls -q -h name path | sed -e 1d -e 's/ /|/')
|
| + |
;;
|
| + |
'')
|
| + |
jails=
|
| + |
;;
|
| + |
*)
|
| + |
# Given the jail name or jid, find the jail path
|
| + |
jails=
|
| + |
for j in $security_status_baseaudit_jails ; do
|
| + |
p=$(jls -j $j -h name path | sed -e 1d -e 's/ /|/')
|
| + |
jails="${jails} ${p}"
|
| + |
done
|
| + |
;;
|
| + |
esac
|
| + |
|
| + |
for j in ${jails} ; do
|
| + |
# ignore some jails
|
| + |
# we iterate to get exact matches because we want substring matches
|
| + |
# foo should not match foo.bar
|
| + |
for ignore in ${security_status_baseaudit_jails_ignore} ; do
|
| + |
if [ "${j%|*}" = "${ignore}" ]; then
|
| + |
echo
|
| + |
echo "ignoring jail: ${j%|*}"
|
| + |
# continue with the main loop
|
| + |
continue 2
|
| + |
fi
|
| + |
done
|
| + |
echo
|
| + |
echo "jail: ${j%|*}"
|
| + |
audit_base "-j ${j%|*}" ${j##*|}
|
| + |
last_rc=$?
|
| + |
[ $last_rc -gt 1 ] && rc=$last_rc
|
| + |
done
|
| + |
|
| + |
return $rc
|
| + |
}
|
| + |
|
| + |
rc=0
|
| + |
|
| + |
if check_yesno_period security_status_baseaudit_enable
|
| + |
then
|
| + |
echo
|
| + |
echo 'Checking for security vulnerabilities in base (userland & kernel):'
|
| + |
|
| + |
if ! ${pkgcmd} -N >/dev/null 2>&1 ; then
|
| + |
echo 'pkg-audit is enabled but pkg is not used'
|
| + |
rc=2
|
| + |
else
|
| + |
case "${security_status_baseaudit_quiet}" in
|
| + |
[Yy][Ee][Ss])
|
| + |
q='-q'
|
| + |
;;
|
| + |
*)
|
| + |
q=
|
| + |
;;
|
| + |
esac
|
| + |
|
| + |
audit_base_all ; rc=$?
|
| + |
fi
|
| + |
fi
|
| + |
|
| + |
exit "$rc"
|