debian-cis/bin/hardening/4.4_logrotate_permissions.sh
P-EB 32886d3a3d
Replace CIS_ROOT_DIR by a more flexible system (#204)
* Replace CIS_ROOT_DIR by a more flexible system

* Try to adapt the logic change to the functional tests
2023-09-25 14:24:01 +02:00

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#!/bin/bash
# run-shellcheck
#
# CIS Debian Hardening
#
#
# 4.4 Ensure logrotate assigns approriate permissions (Scored)
#
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="Configure logrotate to assign appropriate permissions."
FILE="/etc/logrotate.conf"
PATTERN="^\s*create\s+\S+"
PERMISSIONS=0640
# This function will be called if the script status is on enabled / audit mode
audit() {
does_pattern_exist_in_file "$FILE" "$PATTERN"
if [ "$FNRET" != 0 ]; then
crit "Logrotate permissions are not configured"
else
if grep -E "$PATTERN" "$FILE" | grep -E -v "\s(0)?[0-6][04]0\s"; then
crit "Logrotate permissions are not set to $PERMISSIONS"
else
ok "Logrotate permissions are well configured"
fi
fi
}
# This function will be called if the script status is on enabled mode
apply() {
does_pattern_exist_in_file "$FILE" "$PATTERN"
if [ "$FNRET" != 0 ]; then
warn "Logrotate permissions are not configured, fixing it"
add_end_of_file "$FILE" "create $PERMISSIONS root utmp"
else
RESULT=$(grep -E "$PATTERN" "$FILE" | grep -E -v "\s(0)?[0-6][04]0\s")
if [[ -n "$RESULT" ]]; then
warn "Logrotate permissions are not set to $PERMISSIONS, fixing it"
d_IFS=$IFS
c_IFS=$'\n'
IFS=$c_IFS
for SOURCE in $RESULT; do
replace_in_file "$FILE" "$SOURCE" "create $PERMISSIONS root utmp"
done
IFS=$d_IFS
else
ok "Logrotate permissions are well configured"
fi
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