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Index: usr.sbin/bsdinstall/scripts/Makefile
===================================================================
--- usr.sbin/bsdinstall/scripts/Makefile
+++ usr.sbin/bsdinstall/scripts/Makefile
@@ -1,6 +1,6 @@
# $FreeBSD$
-SCRIPTS= auto adduser checksum config docsinstall entropy hostname jail \
+SCRIPTS= auto adduser checksum config docsinstall entropy hardening hostname jail \
keymap mirrorselect mount netconfig netconfig_ipv4 netconfig_ipv6 \
rootpass script services time umount wlanconfig zfsboot
BINDIR= ${LIBEXECDIR}/bsdinstall
Index: usr.sbin/bsdinstall/scripts/auto
===================================================================
--- usr.sbin/bsdinstall/scripts/auto
+++ usr.sbin/bsdinstall/scripts/auto
@@ -385,6 +385,7 @@
fi
bsdinstall time
bsdinstall services
+bsdinstall hardening
dialog --backtitle "FreeBSD Installer" --title "Add User Accounts" --yesno \
"Would you like to add users to the installed system now?" 0 0 && \
@@ -401,6 +402,7 @@
"Hostname" "Set system hostname" \
"Network" "Networking configuration" \
"Services" "Set daemons to run on startup" \
+ "System Hardening" "Choose security options" \
"Time Zone" "Set system timezone" \
"Handbook" "Install FreeBSD Handbook (requires network)" 2>&1 1>&3)
exec 3>&-
@@ -426,6 +428,10 @@
bsdinstall services
finalconfig
;;
+ "Hardening")
+ bsdinstall hardening
+ finalconfig
+ ;;
"Time Zone")
bsdinstall time
finalconfig
Index: usr.sbin/bsdinstall/scripts/config
===================================================================
--- usr.sbin/bsdinstall/scripts/config
+++ usr.sbin/bsdinstall/scripts/config
@@ -32,6 +32,9 @@
cat $BSDINSTALL_TMPETC/rc.conf.* >> $BSDINSTALL_TMPETC/rc.conf
rm $BSDINSTALL_TMPETC/rc.conf.*
+cat $BSDINSTALL_CHROOT/etc/sysctl.conf $BSDINSTALL_TMPETC/sysctl.conf.hardening >> $BSDINSTALL_TMPETC/sysctl.conf
+rm $BSDINSTALL_TMPETC/sysctl.conf.*
+
cp $BSDINSTALL_TMPETC/* $BSDINSTALL_CHROOT/etc
cat $BSDINSTALL_TMPBOOT/loader.conf.* >> $BSDINSTALL_TMPBOOT/loader.conf
Index: usr.sbin/bsdinstall/scripts/hardening
===================================================================
--- usr.sbin/bsdinstall/scripts/hardening
+++ usr.sbin/bsdinstall/scripts/hardening
@@ -0,0 +1,79 @@
+#!/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 > $BSDINSTALL_TMPETC/rc.conf.services
+
+exec 3>&1
+FEATURES=$( dialog --backtitle "FreeBSD Installer" \
+ --title "System Hardening" --nocancel --notags --separate-output \
+ --checklist "Choose system security hardening options:" \
+ 0 0 0 \
+ "hide_uids" "Hide processes running as other users" ${hide_uids:-off} \
+ "hide_gids" "Hide processes running as other groups" ${hide_gids:-off} \
+ "read_msgbuf" "Disable reading kernel message buffer for unprivileged users" ${read_msgbuf:-off} \
+ "proc_debug" "Disable process debugging facilities for unprivileged users" ${proc_debug:-off} \
+ "random_pid" "Randomize the PID of newly created processes" ${random_id:-off} \
+ "stack_guard" "Insert stack guard page ahead of the growable segments" ${stack_guard:-off} \
+ "clear_tmp" "Clean the /tmp filesystem on system startup" ${clear_tmp:-off} \
+ "disable_syslogd" "Disable opening Syslogd network socket (disables remote logging)" ${disable_syslogd:-off} \
+ "disable_sendmail" "Disable Sendmail service" ${disable_sendmail:-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" = "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_id" ]; then
+ echo kern.randompid=$(jot -r 1 9999) >> $BSDINSTALL_TMPETC/sysctl.conf.hardening
+ fi
+ if [ "$feature" = "stack_guard" ]; then
+ echo security.bsd.stack_guard_page=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
+done
+

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