#!/bin/sh ################################################################################# # # Lynis # ------------------ # # Copyright 2007-2014, Michael Boelen (michael@rootkit.nl), The Netherlands # Web site: http://www.rootkit.nl # # Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are # welcome to redistribute it under the terms of the GNU General Public License. # See LICENSE file for usage of this software. # ################################################################################# # # Unsecure services # ################################################################################# # InsertSection "Insecure services" # ################################################################################# # INETD_ACTIVE=0 INETD_CONFIG_FILE="/etc/inetd.conf" # ################################################################################# # # Test : INSE-8002 # Description : Check for inetd status Register --test-no INSE-8002 --weight L --network NO --description "Check for enabled inet daemon" if [ ${SKIPTEST} -eq 0 ]; then # Check running processes logtext "Test: Searching for active inet daemon" IsRunning inetd if [ ${RUNNING} -eq 1 ]; then logtext "Result: inetd is running" Display --indent 2 --text "- Checking inetd status" --result ACTIVE --color GREEN #YYY perform manual check INETD_ACTIVE=1 else logtext "Result: inetd is NOT running" Display --indent 2 --text "- Checking inetd status" --result "NOT ACTIVE" --color GREEN fi fi # ################################################################################# # # Test : INSE-8004 # Description : Check for inetd configuration file if [ ${INETD_ACTIVE} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no INSE-8004 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check for enabled inet daemon" if [ ${SKIPTEST} -eq 0 ]; then # Check configuration file logtext "Test: Searching for file ${INETD_CONFIG_FILE}" if [ -f ${INETD_CONFIG_FILE} ]; then logtext "Result: ${INETD_CONFIG_FILE} exists" Display --indent 4 --text "- Checking inetd.conf" --result FOUND --color WHITE else logtext "Result: ${INETD_CONFIG_FILE} does not exist" Display --indent 4 --text "- Checking inetd.conf" --result "NOT FOUND" --color WHITE fi # YYY immutable bit could be set # YYY permission check (already set in profile) fi # ################################################################################# # # Test : INSE-8006 # Description : Check for inetd configuration file contents if inetd is NOT active if [ ${INETD_ACTIVE} -eq 0 -a -f ${INETD_CONFIG_FILE} ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no INSE-8006 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check configuration of inetd when disabled" if [ ${SKIPTEST} -eq 0 ]; then # Check if any service is enabled in /etc/inetd.conf (inetd is not active, see test 8002) logtext "Test: check if all services are disabled if inetd is disabled" FIND=`cat ${INETD_CONFIG_FILE} | grep -v "^#" | grep -v "^$"` if [ "${FIND}" = "" ]; then Display --indent 4 --text "- Checking inetd.conf services" --result OK --color GREEN else Display --indent 4 --text "- Checking inetd.conf services" --result SUGGESTION --color YELLOW ReportSuggestion ${TEST_NO} "Although inetd is not running, make sure no services are enabled in ${INETD_CONFIG_FILE}" fi fi # ################################################################################# # # Test : INSE-8016 # Description : Check for telnet enabled via inetd if [ ${INETD_ACTIVE} -eq 1 -a -f ${INETD_CONFIG_FILE} ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no INSE-8016 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check for telnet via inetd" if [ ${SKIPTEST} -eq 0 ]; then logtext "Test: checking telnet presence in inetd configuration" FIND=`grep "^telnet" ${INETD_CONFIG_FILE}` if [ "${FIND}" = "" ]; then logtext "Result: telnet not enabled in ${INETD_CONFIG_FILE}" Display --indent 2 --text "- Checking inetd (telnet)" --result "NOT FOUND" --color GREEN AddHP 3 3 else logtext "Result: telnet enabled in ${INETD_CONFIG_FILE}" Display --indent 2 --text "- Checking inetd (telnet)" --result WARNING --color RED ReportSuggestion "${TEST_NO}" "Disable telnet in inetd configuration and use SSH instead" AddHP 1 3 fi fi # ################################################################################# # # Check telnet in /etc/xinetd.conf # Check telnet in /etc/xinetd/* # Check running telnet daemon (telnetd) # rshd rlogin rexec # /etc/hosts.equiv wait_for_keypress # #================================================================================ # Lynis - Copyright 2007-2014, Michael Boelen - www.rootkit.nl - The Netherlands