59e98bdc01
Submitted by: Jörg Pernfuß <code.jpe@gmail.com> Approved by: re (kib) MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D12474
90 lines
4.0 KiB
Bash
Executable File
90 lines
4.0 KiB
Bash
Executable File
#!/bin/sh
|
|
#-
|
|
# Copyright (c) 2016 Bartek Rutkowski
|
|
# 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.
|
|
#
|
|
# $FreeBSD$
|
|
|
|
: ${DIALOG_OK=0}
|
|
|
|
echo -n > $BSDINSTALL_TMPETC/rc.conf.hardening
|
|
echo -n > $BSDINSTALL_TMPETC/sysctl.conf.hardening
|
|
echo -n > $BSDINSTALL_TMPBOOT/loader.conf.hardening
|
|
|
|
exec 3>&1
|
|
FEATURES=$( dialog --backtitle "FreeBSD Installer" \
|
|
--title "System Hardening" --nocancel --separate-output \
|
|
--checklist "Choose system security hardening options:" \
|
|
0 0 0 \
|
|
"0 hide_uids" "Hide processes running as other users" ${hide_uids:-off} \
|
|
"1 hide_gids" "Hide processes running as other groups" ${hide_gids:-off} \
|
|
"2 hide_jail" "Hide processes running in jails" ${hide_jail:-off} \
|
|
"3 read_msgbuf" "Disable reading kernel message buffer for unprivileged users" ${read_msgbuf:-off} \
|
|
"4 proc_debug" "Disable process debugging facilities for unprivileged users" ${proc_debug:-off} \
|
|
"5 random_pid" "Randomize the PID of newly created processes" ${random_pid:-off} \
|
|
"6 clear_tmp" "Clean the /tmp filesystem on system startup" ${clear_tmp:-off} \
|
|
"7 disable_syslogd" "Disable opening Syslogd network socket (disables remote logging)" ${disable_syslogd:-off} \
|
|
"8 disable_sendmail" "Disable Sendmail service" ${disable_sendmail:-off} \
|
|
"9 secure_console" "Enable console password prompt" ${secure_console:-off} \
|
|
"10 disable_ddtrace" "Disallow DTrace destructive-mode" ${disable_ddtrace:-off} \
|
|
2>&1 1>&3 )
|
|
exec 3>&-
|
|
|
|
for feature in $FEATURES; do
|
|
if [ "$feature" = "hide_uids" ]; then
|
|
echo security.bsd.see_other_uids=0 >> $BSDINSTALL_TMPETC/sysctl.conf.hardening
|
|
fi
|
|
if [ "$feature" = "hide_gids" ]; then
|
|
echo security.bsd.see_other_gids=0 >> $BSDINSTALL_TMPETC/sysctl.conf.hardening
|
|
fi
|
|
if [ "$feature" = "hide_jail" ]; then
|
|
echo security.bsd.see_jail_proc=0 >> $BSDINSTALL_TMPETC/sysctl.conf.hardening
|
|
fi
|
|
if [ "$feature" = "read_msgbuf" ]; then
|
|
echo security.bsd.unprivileged_read_msgbuf=0 >> $BSDINSTALL_TMPETC/sysctl.conf.hardening
|
|
fi
|
|
if [ "$feature" = "proc_debug" ]; then
|
|
echo security.bsd.unprivileged_proc_debug=0 >> $BSDINSTALL_TMPETC/sysctl.conf.hardening
|
|
fi
|
|
if [ "$feature" = "random_pid" ]; then
|
|
echo kern.randompid=1 >> $BSDINSTALL_TMPETC/sysctl.conf.hardening
|
|
fi
|
|
if [ "$feature" = "clear_tmp" ]; then
|
|
echo 'clear_tmp_enable="YES"' >> $BSDINSTALL_TMPETC/rc.conf.hardening
|
|
fi
|
|
if [ "$feature" = "disable_syslogd" ]; then
|
|
echo 'syslogd_flags="-ss"' >> $BSDINSTALL_TMPETC/rc.conf.hardening
|
|
fi
|
|
if [ "$feature" = "disable_sendmail" ]; then
|
|
echo 'sendmail_enable="NONE"' >> $BSDINSTALL_TMPETC/rc.conf.hardening
|
|
fi
|
|
if [ "$feature" = "secure_console" ]; then
|
|
sed "s/unknown off secure/unknown off insecure/g" $BSDINSTALL_CHROOT/etc/ttys > $BSDINSTALL_TMPETC/ttys.hardening
|
|
fi
|
|
if [ "$feature" = "disable_ddtrace" ]; then
|
|
echo 'security.bsd.allow_destructive_dtrace=0' >> $BSDINSTALL_TMPBOOT/loader.conf.hardening
|
|
fi
|
|
done
|
|
|