#!/bin/sh

#################################################################################
#
#   Lynis
# ------------------
#
# Copyright 2007-2012, 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.
#
#################################################################################
#
# Software: webserver
#
#################################################################################
#
    InsertSection "Software: webserver"
#
#################################################################################
#
    # Reset Apache status
    APACHE_INSTALLED=0
    APACHE_MODULE_SEARCH_LOCS="/etc/apache2/mods-enabled"
    NGINX_RUNNING=0
    NGINX_CONF_LOCS="/etc/nginx /usr/local/etc/nginx /usr/local/nginx/conf"
    NGINX_CONF_LOCATION=""
#
#################################################################################
#
    sTEST_APACHE_TARGETS="/etc/apache /etc/apache2 /etc/httpd /usr/local/apache /usr/local/apache2 \
                          /usr/local/etc/apache /usr/local/etc/apache2 /usr/local/etc/apache22 \
			  /usr/pkg/etc/httpd /etc/sysconfig/apache2"

    if [ "${OS}" = "AIX" ]; then
	TMPFILE=/tmp/lynis.$$
	echo "" > ${TMPFILE}
      else
	TMPFILE=`mktemp /tmp/lynis.XXXXXX` || exit 1
    fi
#
#################################################################################
#
    # Test        : HTTP-6622
    # Description : Test for Apache installation
    Register --test-no HTTP-6622 --weight L --network NO --description "Testing for Apache Apache installation"
    if [ ${SKIPTEST} -eq 0 ]; then
        if [ "${HTTPDBINARY}" = "" ]; then
            Display --indent 2 --text "- Checking Apache..." --result "NOT FOUND" --color WHITE
          else
	    logtext "Test: Scanning for Apache binary..."
    	    IS_APACHE=`${HTTPDBINARY} -v | egrep '[aA]pache'`
    	    if [ "${IS_APACHE}" = "" ]; then
        	logtext "Result: ${HTTPDBINARY} is not Apache"
    		Display --indent 2 --text "- Checking Apache (binary ${HTTPDBINARY})..." --result "NO MATCH" --color WHITE
    	      else
    		Display --indent 2 --text "- Checking Apache (binary ${HTTPDBINARY})..." --result "FOUND" --color GREEN
        	logtext "Result: ${HTTPDBINARY} seems to be Apache HTTP daemon"
		APACHE_INSTALLED=1
    	    fi
    	fi
    fi
#
#################################################################################
#
    # Test        : HTTP-6624
    # Description : Testing main Apache configuration file
    if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no HTTP-6624 --preqs-met ${PREQS_MET} --weight L --network NO --description "Testing main Apache configuration file"
    if [ ${SKIPTEST} -eq 0 ]; then
        APACHE_CONFIGFILE=""
    	APACHE_TEST=`${HTTPDBINARY} -V | grep "\-D SERVER_CONFIG_FILE=" | sed 's/[ ]-D SERVER_CONFIG_FILE=//' | tr -d '"' | tr -d ' '`

        if [ "${APACHE_TEST}" = "" ]; then
            Display --indent 6 --text "Result: Can't find the configuration file, so skipping some Apache related tests"
          else
            # We found a possible match. Checking if it's valid filename. If not, we need to add a prefix
            if [ -f ${APACHE_TEST} ]; then
                APACHE_CONFIGFILE="${APACHE_TEST}"
                Display --indent 6 --text "Info: Configuration file found (${APACHE_CONFIGFILE})"
              else
        	# Probably the prefix is missing, so we are going to search that
        	APACHE_HTTPDROOT=`${HTTPDBINARY} -V | grep "\-D HTTPD_ROOT=" | sed 's/[ ]-D HTTPD_ROOT=//' | tr -d '"' | tr -d ' '`
        	#echo "Apache root prefix: ${APACHE_HTTPDROOT}"
        	#echo "Complete path to configuration file: ${APACHE_HTTPDROOT}/${APACHE_TEST}"
        	APACHE_TESTFILE="${APACHE_HTTPDROOT}/${APACHE_TEST}"
        	if [ -f ${APACHE_TESTFILE} ]; then
        	    APACHE_CONFIGFILE="${APACHE_TESTFILE}"
        	    Display --indent 6 --text "Info: Configuration file found (${APACHE_CONFIGFILE})"
		    logtext "Result: Configuration file found (${APACHE_CONFIGFILE})"
        	  else
        	    Display --indent 6 --text "[Notice] possible directory/file parts found, but still unsure what the real configuration file is. Skipping some Apache related tests"
        	fi
            fi
        fi
    fi
#
#################################################################################
#

    # Test        : HTTP-6626
    # Description : Testing other Apache configuration files
    if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no HTTP-6626 --preqs-met ${PREQS_MET} --weight L --network NO --description "Testing other Apache configuration file"
    if [ ${SKIPTEST} -eq 0 ]; then
        Display --indent 4 --text "- Searching Apache virtual hosts..."
        for I in ${sTEST_APACHE_TARGETS}; do
	    if [ -d ${I} ]; then
		find ${I} -name "*.conf" -print >> ${TMPFILE}.unsorted
	    fi
	done

	# Sort the list	
	sort ${TMPFILE}.unsorted | uniq >> ${TMPFILE}
	if [ -f ${TMPFILE}.unsorted ]; then rm -f ${TMPFILE}.unsorted; fi
	cVHOSTS=0; tVHOSTS=""
	
	# Check every configuration file
	for I in `cat ${TMPFILE}`; do
	    logtext "Apache config file: ${I}"

	    # Search Virtual Hosts	    
	    for J in `cat ${I} | grep "ServerName" | grep -v "^#" | awk '{ if ($1=="ServerName") print $2 }'`; do
		if [ ! -z ${J} ]; then
		    tVHOSTS="${tVHOSTS} ${J}"
		    cVHOSTS=`expr ${cVHOSTS} + 1`
		fi
	    done
	    # Search Server aliases
	    for J in `cat ${I} | grep "ServerAlias" | grep -v "^#" | sed "s/.* ServerAlias//g" | sed "s/#.*//g"`; do
                if [ ! -z ${J} ]; then
		    tVHOSTS="${tVHOSTS} ${J}"
		    cVHOSTS=`expr ${cVHOSTS} + 1`
		fi
	    done	    

	done

	# Log all virtual hosts we found
	    for J in ${tVHOSTS}; do
		if [ ! -z ${J} ]; then
		    logtext "Virtual host: ${J}"		
		    report "apache_vhost_name[]=${J}"
		fi
	    done
	
	# Show number of vhosts if we found any
	logtext "Result: found ${cVHOSTS} virtual hosts"
	if [ ${cVHOSTS} -gt 0 ]; then
	    Display --indent 8 --text "Info: Found ${cVHOSTS} virtual hosts"
	fi
    fi
    
    # Remove temp file
    if [ -f ${TMPFILE} -a ! "${TMPFILE}" = "" ]; then
        rm -f ${TMPFILE}
    fi
#
#################################################################################
#
    
    # Test        : HTTP-6628
    # Description : Testing other Apache configuration files
    #if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    #Register --test-no HTTP-6628 --preqs-met ${PREQS_MET} --weight L --network NO --description "Testing other Apache configuration file"
    #if [ ${SKIPTEST} -eq 0 ]; then
#    	        # Configuration specific tests
#	        SERVERTOKENSFOUND=0
#	        APACHE_CONFIGFILES="${APACHE_CONFIGFILE} /usr/local/etc/apache22/extra/httpd-default.conf /etc/apache2/sysconfig.d/global.conf"
#		
#	        for APACHE_CONFIGFILE in ${APACHE_CONFIGFILES}; do
#	            if [ -f ${APACHE_CONFIGFILE} ]; then	            
#	        	# Check if option ServerTokens is configured
#	        	SERVERTOKENSTEST=`cat ${APACHE_CONFIGFILE} | grep ServerTokens | grep -v '^#'`
#	        	if [ ! "${SERVERTOKENSTEST}" = "" ]; then
#	    		    Display --indent 4 --text "- Checking option ServerTokens..." --result FOUND --color WHITE
#	        	    SERVERTOKENSTEST=`echo ${SERVERTOKENSTEST} | sed 's/ServerTokens//' | tr -d ' '`
#	    		    logtext "Option ServerTokens found: ${SERVERTOKENSTEST}"
#	    		    SERVERTOKENSEXPECTED=`cat ${PROFILE} | grep 'apache' | grep 'ServerTokens' | cut -d ':' -f3`
#	    		    if [ "${SERVERTOKENSEXPECTED}" = "${SERVERTOKENSTEST}" ]; then
#	    		        logtext "Result: Value from configuration file yielded the same output as in template"
#	    		        SERVERTOKENSFOUND=1
#	    	              else
#	    		        logtext "Warning: Value of ServerTokens within active configuration is different than from used template."
#	    		        logtext "Found: ${SERVERTOKENSTEST}"
#	    		        logtext "Expected: ${SERVERTOKENSEXPECTED}"
#	    		    fi
#	    	          else
#	        	    Display --indent 4 --text "- Checking option ServerTokens..." --result "NOT FOUND" --color WHITE
#	        	fi
#	    	
#    		    else
#    		      # File does not exist, skipping
#    		      logtext "File ${APACHE_CONFIGFILE} does not exist, so skipping tests on this file"
#    	      fi
#    	    done
#    	    
#    	    # Display results from checks
#    	    if [ ${SERVERTOKENSFOUND} -eq 1 ]; then
#        	Display --indent 6 --text "- Value of ServerTokens..." --result OK --color GREEN
#    	      else	    
#    	        Display --indent 6 --text "- Value of ServerTokens..." --result WARNING --color RED
#        	ReportWarning ${TEST_NO} "M" "Value of 'ServerTokens' in Apache config is different than template"
#    	    fi
#           fi 
#           
#        fi
#    fi

#
#################################################################################
#
    # Test        : HTTP-6630
    # Description : Search for all loaded modules
    #if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    #Register --test-no HTTP-6630 --preqs-met ${PREQS_MET} --weight L --network NO --description "Determining all loaded Apache modules"
    #if [ ${SKIPTEST} -eq 0 ]; then
	#logtext "Test: searching loaded/enabled Apache modules"
	#for I in ${APACHE_MODULE_SEARCH_LOCS}; do
	    #logtext "Test: checking ${I}"
            #if [ -d ${I} ]; then
	        #FIND=`grep -r LoadModule ${I}/* | grep -v "^#" | awk '{ print $2":"$3 }'`
	      #else
	        #logtext "Result: ${I} does not exist" 
	    #fi
	#done
    #fi
#
#################################################################################
#

    # Test        : HTTP-6634
    # Description : Search for "TraceEnable off" in configuration files
#
#################################################################################
#

    # Test        : HTTP-6680
    # Description : Search for ModSecurity
    #if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    #Register --test-no HTTP-6680 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check ModSecurity presence"
    #if [ ${SKIPTEST} -eq 0 ]; then
#
#################################################################################
#
    # Test        : HTTP-6702
    # Description : Search for nginx process
    Register --test-no HTTP-6702 --weight L --network NO --description "Check nginx process"
    if [ ${SKIPTEST} -eq 0 ]; then
	logtext "Test: searching running nginx process"
	FIND=`${PSBINARY} ax | grep "/nginx" | grep "master" | grep -v "grep"`
	if [ ! "${FIND}" = "" ]; then
	    logtext "Result: found running nginx process(es)"
            Display --indent 2 --text "- Searching nginx process..." --result FOUND --color GREEN
	    NGINX_RUNNING=1
	  else    
	    logtext "Result: no running nginx process found"
	    Display --indent 2 --text "- Searching nginx process..." --result "NOT FOUND" --color WHITE
	fi
    fi
#
#################################################################################
#
    # Test        : HTTP-6704
    # Description : Search for nginx process
    if [ ${NGINX_RUNNING} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no HTTP-6704 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check nginx configuration file"
    if [ ${SKIPTEST} -eq 0 ]; then
	logtext "Test: searching nginx configuration file"
	for I in ${NGINX_CONF_LOCS}; do
	    if [ -f ${I}/nginx.conf ]; then
	        NGINX_CONF_LOCATION="${I}/nginx.conf"
	        logtext "Found file ${NGINX_CONF_LOCATION}"
	    fi
	done
	#YYY strings /usr/sbin/nginx | grep "conf$"
	if [ ! "${NGINX_CONF_LOCATION}" = "" ]; then
	    logtext "Result: found nginx configuration file"
	    report "nginx_conf_file=${NGINX_CONF_LOCATION}"
            Display --indent 4 --text "- Searching nginx configuration file..." --result FOUND --color GREEN
            #YYY search include statements for additional configuration files
	  else    
	    logtext "Result: no nginx configuration file found"
	    Display --indent 2 --text "- Searching nginx configuration file..." --result "NOT FOUND" --color WHITE
	fi
    fi
#
#################################################################################
#
    # Test        : HTTP-6706
    # Description : Search for nginx virtual hosts
    # Notes       : Test if not aware yet of included configuration files
#    if [ ${NGINX_RUNNING} -eq 1 -a ! "${NGINX_CONF_LOCATION}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
#    Register --test-no HTTP-6706 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check nginx virtual hosts"
#    if [ ${SKIPTEST} -eq 0 ]; then
#	N=0
#	logtext "Test: searching nginx virtual hosts"
#	FIND=`grep "server_name" ${NGINX_CONF_LOCATION} | grep -v "#" | sed 's/server_name//g' | tr -d ';'`
#	for I in ${FIND}; do
#	    if [ "${I}" = "_" ]; then I="Default virtual host"; fi
#	    logtext "Found virtual host: ${I}"
#	    report "nginx_vhost_name[]=${I}"
#	    N=`expr ${N} + 1`
#	done
#	if [ ${N} -eq 0 ]; then
#	    logtext "Result: no virtual hosts found"
#	    Display --indent 4 --text "- Searching virtual hosts..." --result "NOT FOUND" --color WHITE
#	  else
#	    logtext "Result: found ${N} virtual hosts"
#            Display --indent 4 --text "- Searching virtual hosts..." --result "${N} FOUND" --color GREEN
#	fi
#    fi
#
#################################################################################
#
    # Test        : HTTP-6708
    # Description : Check if nginx is running as a reverse proxy
    # Notes       : aliases are not counted yet (YYY)
#    if [ ${NGINX_RUNNING} -eq 1 -a ! "${NGINX_CONF_LOCATION}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
#    Register --test-no HTTP-6708 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check nginx virtual hosts"
#    if [ ${SKIPTEST} -eq 0 ]; then
#	N=0
#	logtext "Test: searching proxy_pass statement in configuration file ${NGINX_CONF_LOCATION}"
#	FIND=`grep "proxy_pass" ${NGINX_CONF_LOCATION} | grep -v "#" | sed 's/proxy_pass//g' | tr -d ';'`
#	for I in ${FIND}; do
#	    logtext "Found reverse proxy configuration for: ${I}"
#	    N=`expr ${N} + 1`
#	done
#	if [ ${N} -eq 0 ]; then
#	    logtext "Result: no reverse proxying functionality found"
#	    Display --indent 4 --text "- Searching reverse proxy functionality..." --result "NOT FOUND" --color WHITE
#	  else
#	    logtext "Result: found ${N} addresses for which nginx will be a reverse proxy"
#           Display --indent 4 --text "- Searching reverse proxy functionality..." --result "${N} FOUND" --color GREEN
#	fi
#    fi
#
#################################################################################
#
    # Test        : HTTP-6720
    # Description : Search for nginx log files
    if [ ${NGINX_RUNNING} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no HTTP-6720 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check nginx log files"
    if [ ${SKIPTEST} -eq 0 ]; then
        logtext "Test: Checking directories for files with log file definitions"
	for I in ${NGINX_CONF_LOCS}; do
	    logtext "Test: Checking ${I}"
	    if [ -d ${I} ]; then
	        logtext "Result: Directory ${I} exists, so will be used as search path"
	        FIND=`find ${I} -exec grep access_log \{\} \; | grep -v "#" | awk '{ if($1=="access_log") { print $2 } }' | sed 's/;$//g' | sort | uniq`
	        if [ "${FIND}" = "" ]; then
	            logtext "Result: no log files found"
	          else
	            logtext "Result: found one or more log files"
	            for I in ${FIND}; do
	    	    if [ -f ${I} ]; then
	    	         logtext "Found log file: ${I}"
	    		 report "log_file=${I}"
	    	      else
	    	         logtext "Found non existing log file: ${I}"
	    	    fi
	    	done
	        fi
	      else
	        logtext "Result: directory ${I} not found, skipping search in this directory."
	    fi
	done
    fi
#
#################################################################################
#
    # Scan for websites
    #/etc/apache2/sites-available
#
#################################################################################
#

wait_for_keypress

#
#================================================================================
# Lynis - Copyright 2007-2012, Michael Boelen - www.rootkit.nl - The Netherlands
