Files
debian-cis/bin/hardening/use_time_sync.sh
Damien Cavagnini 29d51654aa feat: add new scripts for debian 12
- tftp_is_disabled              ->      2.1.16
- network_services_listening    ->      2.1.22
- use_time_sync                 ->      2.3.1.1
Update the existing script to check there is only one installed

- chrony_is_enabled_and_running ->      2.3.3.3
2025-07-18 16:55:38 +02:00

69 lines
1.9 KiB
Bash
Executable File

#!/bin/bash
# run-shellcheck
#
# CIS Debian Hardening
#
#
# Ensure a single time synchronization daemon is in use (Automated)
#
set -e # One error, it's over
set -u # One variable unset, it's over
# shellcheck disable=2034
HARDENING_LEVEL=3
# shellcheck disable=2034
DESCRIPTION="Ensure a single time synchronization is in use"
PACKAGES="systemd-timesyncd ntp chrony"
# This function will be called if the script status is on enabled / audit mode
audit() {
local count=0
for PACKAGE in $PACKAGES; do
is_pkg_installed "$PACKAGE"
if [ "$FNRET" -eq 0 ]; then
let count=$((count+1))
fi
done
if [ "$count" -eq 0 ]; then
crit "None of the following time sync packages are installed: $PACKAGES"
elif [ "$count" -gt 1 ]; then
crit "Multiple time sync packages are installed, from $PACKAGES. Pick one and remove the others"
else
info "A single time sync package from $PACKAGES is installed"
fi
}
# This function will be called if the script status is on enabled mode
apply() {
info "This recommendation has to be reviewed and applied manually"
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
# shellcheck source=../../debian/default
. /etc/default/cis-hardening
fi
if [ -z "$CIS_LIB_DIR" ]; then
echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
echo "Cannot source CIS_LIB_DIR variable, aborting."
exit 128
fi
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
if [ -r "${CIS_LIB_DIR}"/main.sh ]; then
# shellcheck source=../../lib/main.sh
. "${CIS_LIB_DIR}"/main.sh
else
echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_LIB_DIR in /etc/default/cis-hardening"
exit 128
fi