Files
debian-cis/bin/hardening/chrony_with_chrony_user.sh
damien cavagnini a7bc6a47f9 feat: add new checks for debian12
systemd_timesyncd_is_enabled_and_running.sh	-> 2.3.2.2
rpcbind_is_disabled.sh				-> 2.1.12
ftp_client_not_installed.sh			-> 2.2.6
chrony_with_chrony_user.sh			-> 2.3.3.2
ipv6_is_enabled.sh				-> 3.1.1
2025-07-31 11:43:37 +02:00

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#!/bin/bash
# run-shellcheck
#
# CIS Debian Hardening
#
#
# Ensure chrony is running as user _chrony (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 chrony is running as user _chrony"
FILE='/etc/chrony/chrony.conf'
CHRONY_USER="_chrony"
USER_PATTERN="^user"
# This function will be called if the script status is on enabled / audit mode
audit() {
CHRONY_USER_VALID=0
local running_user=""
running_user=$($SUDO_CMD ps -ef | awk '/[c]hronyd/ { print $1 }')
if [ -z "$running_user" ]; then
CHRONY_USER_VALID=1
crit "chrony is not running"
elif [[ "$running_user" != "$CHRONY_USER" ]]; then
CHRONY_USER_VALID=1
crit "chrony is running as root"
else
ok "chrony is running as $CHRONY_USER"
fi
}
# This function will be called if the script status is on enabled mode
apply() {
audit
if [ "$CHRONY_USER_VALID" -ne 0 ]; then
does_pattern_exist_in_file "$FILE" "$USER_PATTERN"
if [ "$FNRET" -eq 0 ]; then
sed -i '/'$USER_PATTERN'/d' "$FILE"
fi
add_end_of_file "$FILE" "user $CHRONY_USER"
info "$FILE modified, please restart the service"
fi
}
# 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