Files
debian-cis/bin/hardening/users_homedir_ownership.sh
damcav35 be33848d81 Damcava35/set version (#257)
* feat: add "--set-version" option

This feature will allow to chose a specific cis version to run, like debian 11 or debian 12

* chore: configure current repository as a version

And use it as default version.

To this end, the scripts in bin/hardening have been made generic by removing the associated recommendation number.
Only impact is if you are used to execute scripts directly from bin/hardening.
In this case, please use the "bin/hardening.sh" wrapper as intended.

I had to rename 2.3.1_disable_nis.sh to uninstall_nis.sh, as it was conflicting with 2.3.1_disable_nis.sh

Also, there was a doublon between 1.1.1.8_disable_cramfs.sh and 99.1.1.1_disable_cramfs.sh ; the former was kept

* chore: remove CIS recommendation numbers from bin/hardening scripts

* fix: some tests are failing

find_ungrouped_files.sh and find_unowned_files.sh tests can not be executed multiple times:
- test repository is not cleaned
- configuration is updated multiple times

Those tests are also failing, because:
- the sed to change the status in the configuration was also changing the test folder path.
- missing /proc in EXCLUDED paths
- the EXCLUDED configuration doesn't have the correct format for egrep

---------

Co-authored-by: Damien Cavagnini <damien.cavagnini@corp.ovh.com>
2025-07-01 08:41:55 +02:00

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#!/bin/bash
# run-shellcheck
#
# CIS Debian Hardening
#
#
# Ensure users own their home directories (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="Ensure users own their home directories"
EXCEPTIONS=""
ERRORS=0
# This function will be called if the script status is on enabled / audit mode
audit() {
RESULT=$(awk -F: '{ print $1 ":" $3 ":" $6 }' /etc/passwd)
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" ] && [ "$USER" != "nfsnobody" ]; then
OWNER=$(stat -L -c "%U" "$DIR")
if [ "$OWNER" != "$USER" ]; then
EXCEP_FOUND=0
for excep in $EXCEPTIONS; do
if [ "$DIR:$USER:$OWNER" = "$excep" ]; then
ok "The home directory ($DIR) of user $USER is owned by $OWNER but is part of exceptions ($DIR:$USER:$OWNER)."
EXCEP_FOUND=1
break
fi
done
if [ "$EXCEP_FOUND" -eq 0 ]; then
crit "The home directory ($DIR) of user $USER is owned by $OWNER."
ERRORS=$((ERRORS + 1))
fi
fi
fi
done
if [ "$ERRORS" = 0 ]; then
ok "All home directories have correct ownership"
fi
}
# This function will be called if the script status is on enabled mode
apply() {
info "Modifying home directories may seriously harm your system, report only here"
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
# shellcheck source=../../debian/default
. /etc/default/cis-hardening
fi
if [ -z "$CIS_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