lynis/include/tests_insecure_services

#!/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