debian-cis/bin/hardening/11.1_warning_banners.sh
2016-04-21 18:32:36 +02:00

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#!/bin/bash
#
# CIS Debian 7 Hardening
#
#
# 11.1 Set Warning Banner for Standard Login Services (Scored)
#
set -e # One error, it's over
set -u # One variable unset, it's over
PERMISSIONS='644'
USER='root'
GROUP='root'
FILES='/etc/motd /etc/issue /etc/issue.net'
# This function will be called if the script status is on enabled / audit mode
audit () {
for FILE in $FILES; do
has_file_correct_ownership $FILE $USER $GROUP
if [ $FNRET = 0 ]; then
ok "$FILE has correct ownership"
else
crit "$FILE is not $USER:$GROUP ownership set"
fi
has_file_correct_permissions $FILE $PERMISSIONS
if [ $FNRET = 0 ]; then
ok "$FILE has correct permissions"
else
crit "$FILE permissions were not set to $PERMISSIONS"
fi
done
}
# This function will be called if the script status is on enabled mode
apply () {
for FILE in $FILES; do
does_file_exist $FILE
if [ $FNRET != 0 ]; then
info "$FILE does not exist"
touch $FILE
fi
has_file_correct_ownership $FILE $USER $GROUP
if [ $FNRET = 0 ]; then
ok "$FILE has correct ownership"
else
warn "$FILE is not $USER:$GROUP ownership set"
chown $USER:$GROUP $FILE
fi
has_file_correct_permissions $FILE $PERMISSIONS
if [ $FNRET = 0 ]; then
ok "$FILE has correct permissions"
else
info "fixing $FILE permissions to $PERMISSIONS"
chmod 0$PERMISSIONS $FILE
fi
done
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ ! -r /etc/default/cis-hardening ]; then
echo "There is no /etc/default/cis-hardening file, cannot source CIS_ROOT_DIR variable, aborting"
exit 128
else
. /etc/default/cis-hardening
if [ -z $CIS_ROOT_DIR ]; then
echo "No CIS_ROOT_DIR variable, aborting"
exit 128
fi
fi
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
[ -r $CIS_ROOT_DIR/lib/main.sh ] && . $CIS_ROOT_DIR/lib/main.sh