harbian-audit/bin/hardening/3.2_bootloader_permissions.sh

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#!/bin/bash
#
# harbian-audit for Debian GNU/Linux 7/8/9/10 or CentOS Hardening
# Modify by: Samson-W (samson@hardenedlinux.org)
#
#
# 3.2 Set Permissions on bootloader config (Scored)
#
set -e # One error, it's over
set -u # One variable unset, it's over
HARDENING_LEVEL=1
# Assertion : Grub Based.
FILE='/boot/grub/grub.cfg'
PKGNAME='grub-pc'
PERMISSIONS='400'
# This function will be called if the script status is on enabled / audit mode
audit () {
if [ $OS_RELEASE -eq 2 ]; then
FILE='/boot/grub2/grub.cfg'
else
:
fi
has_file_correct_permissions $FILE $PERMISSIONS
if [ $FNRET = 0 ]; then
ok "$FILE has correct permissions"
FNRET=0
else
crit "$FILE permissions were not set to $PERMISSIONS"
FNRET=1
fi
}
# This function will be called if the script status is on enabled mode
apply () {
if [ $OS_RELEASE -eq 2 ]; then
FILE='/boot/grub2/grub.cfg'
else
:
fi
if [ $FNRET = 0 ]; then
ok "$FILE has correct permissions"
else
info "fixing $FILE permissions to $PERMISSIONS"
chmod 0$PERMISSIONS $FILE
fi
}
# This function will check config parameters required
check_config() {
if [ $OS_RELEASE -eq 2 ]; then
FILE='/boot/grub2/grub.cfg'
PKGNAME='grub2-pc'
else
:
fi
is_pkg_installed "$PKGNAME"
if [ $FNRET != 0 ]; then
warn "$PKGNAME is not installed, not handling configuration"
exit 128
fi
if [ $FNRET != 0 ]; then
crit "$FILE does not exist"
exit 128
fi
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
. /etc/default/cis-hardening
fi
if [ -z "$CIS_ROOT_DIR" ]; then
echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
echo "Cannot source CIS_ROOT_DIR variable, aborting."
exit 128
fi
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
if [ -r $CIS_ROOT_DIR/lib/main.sh ]; then
. $CIS_ROOT_DIR/lib/main.sh
else
echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
exit 128
fi