debian-cis/bin/hardening/6.2.3_users_valid_homedir.sh

#!/bin/bash

# run-shellcheck
#
# CIS Debian Hardening
#

#
# 6.2.3 Ensure all users' home directories exist (Scored)
#

set -e # One error, it's over
set -u # One variable unset, it's over

# shellcheck disable=2034
HARDENING_LEVEL=2
# shellcheck disable=2034
DESCRIPTION="Users are assigned valid home directories."

ERRORS=0

# This function will be called if the script status is on enabled / audit mode
audit() {
    RESULT=$(get_db passwd | awk -F: '{ print $1 ":" $3 ":" $6 }')
    for LINE in $RESULT; do
        debug "Working on $LINE"
        USER=$(awk -F: '{print $1}' <<<"$LINE")
        USERID=$(awk -F: '{print $2}' <<<"$LINE")
        DIR=$(awk -F: '{print $3}' <<<"$LINE")
        if [ "$USERID" -ge 1000 ] && [ ! -d "$DIR" ] && [ "$USER" != "nfsnobody" ] && [ "$USER" != "nobody" ] && [ "$DIR" != "/nonexistent" ]; then
            crit "The home directory ($DIR) of user $USER does not exist."
            ERRORS=$((ERRORS + 1))
        fi
    done

    if [ "$ERRORS" = 0 ]; then
        ok "All home directories exists"
    fi
}

# This function will be called if the script status is on enabled mode
apply() {
    info "Modifying home directories may seriously harm your system, report only here"
}

# 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_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 "$CIS_ROOT_DIR"/lib/main.sh ]; then
    # shellcheck source=../../lib/main.sh
    . "$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