mirror of https://github.com/CISOfy/lynis.git
618 lines
31 KiB
Bash
618 lines
31 KiB
Bash
#!/bin/sh
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#################################################################################
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#
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# Lynis
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# ------------------
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#
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# Copyright 2007-2013, Michael Boelen
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# Copyright 2007-2017, CISOfy
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#
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# Website : https://cisofy.com
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# Blog : http://linux-audit.com
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# GitHub : https://github.com/CISOfy/lynis
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#
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# Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
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# welcome to redistribute it under the terms of the GNU General Public License.
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# See LICENSE file for usage of this software.
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#
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#################################################################################
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#
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# Software: webserver
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#
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#################################################################################
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#
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InsertSection "Software: webserver"
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#
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#################################################################################
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#
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# Reset Apache status
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APACHE_INSTALLED=0
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APACHE_MODULES_ENABLED_LOCS="${ROOTDIR}etc/apache2/mods-enabled"
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APACHE_MODULES_LOCS="${ROOTDIR}etc/httpd/modules ${ROOTDIR}opt/local/apache2/modules ${ROOTDIR}usr/lib/apache2 ${ROOTDIR}usr/lib/httpd/modules ${ROOTDIR}usr/libexec/apache2 ${ROOTDIR}usr/lib64/apache2 ${ROOTDIR}usr/lib64/apache2/modules ${ROOTDIR}usr/lib64/httpd/modules ${ROOTDIR}usr/local/libexec/apache ${ROOTDIR}usr/local/libexec/apache22"
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NGINX_RUNNING=0
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NGINX_CONF_LOCS="${ROOTDIR}etc/nginx ${ROOTDIR}usr/local/etc/nginx ${ROOTDIR}usr/local/nginx/conf"
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NGINX_CONF_LOCATION=""
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NGINX_CONF_FILES=""
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NGINX_CONF_FILES_ADDITIONS=""
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#
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#################################################################################
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#
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sTEST_APACHE_TARGETS="${ROOTDIR}etc/apache ${ROOTDIR}etc/apache2 ${ROOTDIR}etc/httpd ${ROOTDIR}usr/local/apache ${ROOTDIR}usr/local/apache2 \
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${ROOTDIR}usr/local/etc/apache ${ROOTDIR}usr/local/etc/apache2 ${ROOTDIR}usr/local/etc/apache22 \
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${ROOTDIR}usr/pkg/etc/httpd ${ROOTDIR}etc/sysconfig/apache2"
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CreateTempFile || ExitFatal
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TMPFILE="${TEMP_FILE}"
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CreateTempFile || ExitFatal
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TMPFILE2="${TEMP_FILE}"
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#
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#################################################################################
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#
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# Test : HTTP-6622
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# Description : Test for Apache installation
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# Notes : Do not run on NetBSD, -v is unknown option for httpd binary
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# On OpenBSD do not run /usr/sbin/httpd with -v: builtin non-Apache
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if [ ! "${OS}" = "NetBSD" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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Register --test-no HTTP-6622 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Checking Apache presence"
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if [ ${SKIPTEST} -eq 0 ]; then
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if [ "${OS}" = "OpenBSD" -a "${HTTPDBINARY}" = "/usr/sbin/httpd" ]; then HTTPDBINARY=""; fi
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if IsEmpty "${HTTPDBINARY}"; then
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Display --indent 2 --text "- Checking Apache" --result "${STATUS_NOT_FOUND}" --color WHITE
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else
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LogText "Test: Scanning for Apache binary"
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IS_APACHE=$(${HTTPDBINARY} -v 2> /dev/null | ${EGREPBINARY} '[aA]pache')
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if IsEmpty "${IS_APACHE}"; then
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LogText "Result: ${HTTPDBINARY} is not Apache"
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Display --indent 2 --text "- Checking Apache (binary ${HTTPDBINARY})" --result "NO MATCH" --color WHITE
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else
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Display --indent 2 --text "- Checking Apache (binary ${HTTPDBINARY})" --result "${STATUS_FOUND}" --color GREEN
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LogText "Result: ${HTTPDBINARY} seems to be Apache HTTP daemon"
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APACHE_INSTALLED=1
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APACHE_VERSION=$(${HTTPDBINARY} -v 2> /dev/null | ${GREPBINARY} "^Server version:" | ${AWKBINARY} '{ print $3 }' | ${AWKBINARY} -F/ '{ print $2 }')
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LogText "Apache version: ${APACHE_VERSION}"
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Report "apache_version=${APACHE_VERSION}"
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fi
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fi
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fi
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#
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#################################################################################
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#
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# Test : HTTP-6624
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# Description : Testing main Apache configuration file
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# Notes : Do not run on OpenBSD/NetBSD, as -V is an unknown option for httpd binary
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if [ ${APACHE_INSTALLED} -eq 1 ]; then
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if [ ! "${OS}" = "NetBSD" -a ! "${OS}" = "OpenBSD" ]; then
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PREQS_MET="YES"
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else
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PREQS_MET="NO"
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fi
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else
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PREQS_MET="NO"
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fi
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Register --test-no HTTP-6624 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Testing main Apache configuration file"
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if [ ${SKIPTEST} -eq 0 ]; then
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APACHE_CONFIGFILE=""
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APACHE_TEST=$(${HTTPDBINARY} -V 2> /dev/null | ${GREPBINARY} "\-D SERVER_CONFIG_FILE=" | ${SEDBINARY} 's/[ ]-D SERVER_CONFIG_FILE=//' | ${TRBINARY} -d '"' | ${TRBINARY} -d ' ' | ${TRBINARY} -d '[:cntrl:]')
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if IsEmpty "${APACHE_TEST}"; then
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LogText "Result: Can't find the configuration file, so skipping some Apache related tests"
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else
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# We found a possible match. Checking if it's valid filename. If not, we need to add a prefix
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if [ -f ${APACHE_TEST} ]; then
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APACHE_CONFIGFILE="${APACHE_TEST}"
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Display --indent 6 --text "Info: Configuration file found (${APACHE_CONFIGFILE})"
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else
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# Probably the prefix is missing, so we are going to search that
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APACHE_HTTPDROOT=$(${HTTPDBINARY} -V 2> /dev/null | ${GREPBINARY} "\-D HTTPD_ROOT=" | ${SEDBINARY} 's/[ ]-D HTTPD_ROOT=//' | ${TRBINARY} -d '"' | ${TRBINARY} -d ' ')
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APACHE_TESTFILE="${APACHE_HTTPDROOT}/${APACHE_TEST}"
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if [ -f ${APACHE_TESTFILE} ]; then
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APACHE_CONFIGFILE="${APACHE_TESTFILE}"
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Display --indent 6 --text "Info: Configuration file found (${APACHE_CONFIGFILE})"
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LogText "Result: Configuration file found (${APACHE_CONFIGFILE})"
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else
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LogText "Result: File or directory ${APACHE_CONFIGFILE} does not exist"
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Display --indent 6 --text "[Notice] possible directory/file parts found, but still unsure what the real configuration file is. Skipping some Apache related tests"
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ReportException "${TEST_NO}:1" "Found some unknown directory or file references in Apache configuration"
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fi
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fi
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fi
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fi
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#
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#################################################################################
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#
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# Test : HTTP-6626
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# Description : Testing other Apache configuration files
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if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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Register --test-no HTTP-6626 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Testing other Apache configuration file"
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if [ ${SKIPTEST} -eq 0 ]; then
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for DIR in ${sTEST_APACHE_TARGETS}; do
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if [ -d ${DIR} ]; then
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find ${DIR} -name "*.conf" -print >> ${TMPFILE2}
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fi
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done
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# Sort unsorted list, save it in temp file and then remove unsorted list
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if [ -f ${TMPFILE2} ]; then
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${SORTBINARY} -u ${TMPFILE2} >> ${TMPFILE}
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rm -f ${TMPFILE2}
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fi
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cVHOSTS=0; tVHOSTS=""
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# Check every configuration file
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for I in $(cat ${TMPFILE}); do
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LogText "Apache config file: ${I}"
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FileIsReadable ${I}
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if [ ${CANREAD} -eq 1 ]; then
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# Search Virtual Hosts
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for J in $(${GREPBINARY} "ServerName" ${I} | ${GREPBINARY} -v "^#" | ${AWKBINARY} '{ if ($1=="ServerName" && $2!="*" && $2!="default") print $2 }'); do
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if HasData "${J}"; then
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tVHOSTS="${tVHOSTS} ${J}"
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cVHOSTS=$((cVHOSTS + 1))
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fi
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done
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# Search Server aliases
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for J in $(${GREPBINARY} "ServerAlias" ${I} | ${GREPBINARY} -v "^#" | ${SEDBINARY} "s/\s*ServerAlias //g" | ${SEDBINARY} "s/#.*//g"); do
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if [ ! -z ${J} ]; then
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tVHOSTS="${tVHOSTS} ${J}"
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cVHOSTS=$((cVHOSTS + 1))
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fi
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done
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else
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LogText "Result: can not read configuration file with this user ID"
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ReportException "${TEST_NO}:1" "Can not read configuration file $I"
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fi
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done
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# Log all virtual hosts we found
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for J in ${tVHOSTS}; do
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if [ ! -z ${J} ]; then
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LogText "Virtual host: ${J}"
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Report "apache_vhost_name[]=${J}"
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fi
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done
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# Show number of vhosts if we found any
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LogText "Result: found ${cVHOSTS} virtual hosts"
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if [ ${cVHOSTS} -gt 0 ]; then
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Display --indent 6 --text "Info: Found ${cVHOSTS} virtual hosts"
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else
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Display --indent 6 --text "Info: No virtual hosts found"
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fi
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fi
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# Remove temp files
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if [ -f ${TMPFILE} -a ! -z "${TMPFILE}" ]; then
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rm -f ${TMPFILE}
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fi
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if [ ! -z "${TMPFILE2}" ]; then if [ -f ${TMPFILE2} ]; then rm -f ${TMPFILE2}; fi; fi
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#
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#################################################################################
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#
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# TODO
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# Do you have Apache running and want to contribute? Help us testing this control and send in a pull request
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# Test : HTTP-6630
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# Description : Search for all loaded modules
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#if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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#Register --test-no HTTP-6630 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Determining all loaded Apache modules"
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#if [ ${SKIPTEST} -eq 0 ]; then
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# # Testing Debian style
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# LogText "Test: searching loaded/enabled Apache modules"
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# apachectl -t -D DUMP_MODULES 2>&1 | ${EGREPBINARY} -v "(Loaded Modules|Syntax OK)" | ${SEDBINARY} 's/(\(shared\|static\))//' | ${SEDBINARY} 's/ //'
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# for I in ${APACHE_MODULES_ENABLED_LOCS}; do
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# LogText "Test: checking ${I}"
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# if [ -d ${I} ]; then
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# FIND=$(${GREPBINARY} -r LoadModule ${I}/* | ${GREPBINARY} -v "^#" | ${AWKBINARY} '{ print $2":"$3 }')
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# else
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# LogText "Result: ${I} does not exist"
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# fi
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# done
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#fi
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#
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#################################################################################
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#
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# Test : HTTP-6632
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# Description : Search for available Apache modules
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if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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Register --test-no HTTP-6632 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Determining all available Apache modules"
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if [ ${SKIPTEST} -eq 0 ]; then
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LogText "Test: searching available Apache modules"
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COUNT=0
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for DIR in ${APACHE_MODULES_LOCS}; do
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DirectoryExists ${DIR}
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if [ ${DIRECTORY_FOUND} -eq 1 ]; then
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FIND=$(${FINDBINARY} ${DIR} -name "mod_*" -print | ${SORTBINARY})
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for ITEM in ${FIND}; do
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Report "apache_module[]=${ITEM}"
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LogText "Result: found Apache module ${ITEM}"
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COUNT=$((COUNT + 1))
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done
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fi
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done
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if [ ${COUNT} -eq 0 ]; then
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Display --indent 4 --text "* Loadable modules" --result "${STATUS_NONE}" --color WHITE
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ReportException "${TEST_NO}:1" "No loadable Apache modules found"
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else
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Display --indent 4 --text "* Loadable modules" --result "${STATUS_FOUND} (${COUNT})" --color GREEN
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Display --indent 8 --text "- Found ${COUNT} loadable modules"
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fi
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fi
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#
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#################################################################################
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#
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# Test : HTTP-6640
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# Description : Search for special Apache modules: evasive
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if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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Register --test-no HTTP-6640 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Determining existence of specific Apache modules"
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if [ ${SKIPTEST} -eq 0 ]; then
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# Check modules, module
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CheckItem "apache_module" "/mod_evasive([0-9][0-9])?.so"
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if [ ${ITEM_FOUND} -eq 1 ]; then
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Display --indent 10 --text "mod_evasive: anti-DoS/brute force" --result "${STATUS_FOUND}" --color GREEN
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AddHP 3 3
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else
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Display --indent 10 --text "mod_evasive: anti-DoS/brute force" --result "${STATUS_NOT_FOUND}" --color WHITE
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AddHP 2 3
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ReportSuggestion ${TEST_NO} "Install Apache mod_evasive to guard webserver against DoS/brute force attempts"
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fi
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fi
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#
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#################################################################################
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#
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# Test : HTTP-6641
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# Description : Search for special Apache modules: Quality of Service
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# Notes : Was mod_qos before. Since Apache 2.2.15 mod_reqtimeout
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if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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Register --test-no HTTP-6641 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Determining existence of specific Apache modules"
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if [ ${SKIPTEST} -eq 0 ]; then
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# Check modules, module
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CheckItem "apache_module" "/mod_(reqtimeout|qos).so"
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if [ ${ITEM_FOUND} -eq 1 ]; then
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Display --indent 10 --text "mod_reqtimeout/mod_qos" --result "${STATUS_FOUND}" --color GREEN
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AddHP 3 3
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else
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Display --indent 10 --text "mod_reqtimeout/mod_qos" --result "${STATUS_NOT_FOUND}" --color WHITE
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AddHP 2 3
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ReportSuggestion ${TEST_NO} "Install Apache mod_reqtimeout or mod_qos to guard webserver against Slowloris attacks"
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fi
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fi
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#
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#################################################################################
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#
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# Test : HTTP-6643
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# Description : Search for special Apache modules: security
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if [ ${APACHE_INSTALLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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Register --test-no HTTP-6643 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Determining existence of specific Apache modules"
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if [ ${SKIPTEST} -eq 0 ]; then
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# Check modules, module
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CheckItem "apache_module" "/mod_security2.so"
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if [ ${ITEM_FOUND} -eq 1 ]; then
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Display --indent 10 --text "ModSecurity: web application firewall" --result "${STATUS_FOUND}" --color GREEN
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AddHP 3 3
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else
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Display --indent 10 --text "ModSecurity: web application firewall" --result "${STATUS_NOT_FOUND}" --color WHITE
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AddHP 2 3
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ReportSuggestion ${TEST_NO} "Install Apache modsecurity to guard webserver against web application attacks"
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fi
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fi
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#
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#################################################################################
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#
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# Test : HTTP-6660 TODO
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# Description : Search for "TraceEnable off" in configuration files
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#
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#################################################################################
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#
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# Test : HTTP-6702
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# Description : Search for nginx process
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Register --test-no HTTP-6702 --weight L --network NO --category security --description "Check nginx process"
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if [ ${SKIPTEST} -eq 0 ]; then
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LogText "Test: searching running nginx process"
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FIND=$(${PSBINARY} ax | ${GREPBINARY} "/nginx" | ${GREPBINARY} "master" | ${GREPBINARY} -v "grep")
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if HasData "${FIND}"; then
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LogText "Result: found running nginx process(es)"
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Display --indent 2 --text "- Checking nginx" --result "${STATUS_FOUND}" --color GREEN
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NGINX_RUNNING=1
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Report "nginx_running=1"
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else
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LogText "Result: no running nginx process found"
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Display --indent 2 --text "- Checking nginx" --result "${STATUS_NOT_FOUND}" --color WHITE
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fi
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fi
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#
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#################################################################################
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#
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# Test : HTTP-6704
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# Description : Search for nginx configuration file
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if [ ${NGINX_RUNNING} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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Register --test-no HTTP-6704 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check nginx configuration file"
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if [ ${SKIPTEST} -eq 0 ]; then
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LogText "Test: searching nginx configuration file"
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for DIR in ${NGINX_CONF_LOCS}; do
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if [ -f ${DIR}/nginx.conf ]; then
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NGINX_CONF_LOCATION="${DIR}/nginx.conf"
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LogText "Found file ${NGINX_CONF_LOCATION}"
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NGINX_CONF_FILES="${DIR}/nginx.conf"
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fi
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done
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if HasData "${NGINX_CONF_LOCATION}"; then
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LogText "Result: found nginx configuration file"
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Report "nginx_main_conf_file=${NGINX_CONF_LOCATION}"
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Display --indent 4 --text "- Searching nginx configuration file" --result "${STATUS_FOUND}" --color GREEN
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else
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LogText "Result: no nginx configuration file found"
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Display --indent 2 --text "- Searching nginx configuration file" --result "${STATUS_NOT_FOUND}" --color WHITE
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fi
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fi
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#
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#################################################################################
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#
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# Test : HTTP-6706
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# Description : Search for includes within nginx configuration file
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# Notes : Daemon nginx should be running, nginx.conf should be found
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if [ ${NGINX_RUNNING} -eq 1 -a ! -z "${NGINX_CONF_LOCATION}" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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Register --test-no HTTP-6706 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check for additional nginx configuration files"
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if [ ${SKIPTEST} -eq 0 ]; then
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CreateTempFile || ExitFatal
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TMPFILE="${TEMP_FILE}"
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COUNT=0
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${SEDBINARY} -e 's/^[ ]*//' ${NGINX_CONF_LOCATION} | ${GREPBINARY} -v "^#" | ${GREPBINARY} -v "^$" | ${SEDBINARY} 's/[ ]/ /g' | ${SEDBINARY} 's/ / /g' | ${SEDBINARY} 's/ / /g' >> ${TMPFILE}
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# Search for included configuration files (may include directories and wild cards)
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FIND=$(${GREPBINARY} "include" ${NGINX_CONF_LOCATION} | ${AWKBINARY} '{ if ($1=="include") { print $2 }}' | ${SEDBINARY} 's/;$//g')
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for I in ${FIND}; do
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FIND2=$(${LSBINARY} ${I} 2>/dev/null)
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for J in ${FIND2}; do
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# Ensure that we are parsing normal files
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if [ -f ${J} ]; then
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COUNT=$((COUNT + 1))
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LogText "Result: found Nginx configuration file ${J}"
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Report "nginx_sub_conf_file[]=${J}"
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FileIsReadable ${J}
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if [ ${CANREAD} -eq 1 ]; then
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NGINX_CONF_FILES="${NGINX_CONF_FILES} ${J}"
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FIND3=$(sed -e 's/^[ ]*//' ${J} | ${GREPBINARY} -v "^#" | ${GREPBINARY} -v "^$" | ${SEDBINARY} 's/[ ]/ /g' | ${SEDBINARY} 's/ / /g' | ${SEDBINARY} 's/ / /g' >> ${TMPFILE})
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else
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ReportException "${TEST_NO}:1" "Can not parse file ${J}, as it is not readable"
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fi
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fi
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done
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done
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# Sort all discovered configuration lines and store unique ones. Also strip out the mime types configured in nginx
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SORTFILE=$(${SORTBINARY} -u ${TMPFILE} | ${SEDBINARY} 's/ /:space:/g' | ${EGREPBINARY} -v "(application|audio|image|text|video)/" | ${EGREPBINARY} -v "({|})")
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for I in ${SORTFILE}; do
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I=$(echo ${I} | ${SEDBINARY} 's/:space:/ /g')
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Report "nginx_config_option[]=${I}";
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done
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# Remove unsorted file for next tests
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if [ -f ${TMPFILE} ]; then rm -f ${TMPFILE}; fi
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|
|
|
if [ ${COUNT} -eq 0 ]; then
|
|
LogText "Result: no nginx include statements found"
|
|
else
|
|
Display --indent 6 --text "- Found nginx includes" --result "${COUNT} FOUND" --color GREEN
|
|
fi
|
|
fi
|
|
#
|
|
#################################################################################
|
|
#
|
|
# Test : HTTP-6708
|
|
# Description : Check discovered nginx configuration settings for further hardening
|
|
# Notes : Daemon of nginx should be running, nginx.conf should be found
|
|
if [ ${NGINX_RUNNING} -eq 1 -a ! -z "${NGINX_CONF_FILES}" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
|
|
Register --test-no HTTP-6708 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check discovered nginx configuration settings"
|
|
if [ ${SKIPTEST} -eq 0 ]; then
|
|
LogText "Test: start parsing all discovered nginx options"
|
|
Display --indent 4 --text "- Parsing configuration options"
|
|
for FILE in ${NGINX_CONF_FILES}; do
|
|
FILENAME=$(echo ${FILE} | ${AWKBINARY} -F/ '{print $NF}')
|
|
if [ ! "${FILENAME}" = "mime.types" ]; then
|
|
if FileIsReadable ${FILE}; then
|
|
Display --indent 8 --text "- ${FILE}"
|
|
ParseNginx ${FILE}
|
|
else
|
|
Display --indent 8 --text "- ${FILE}" --result "SKIPPED (NOT READABLE)" --color YELLOW
|
|
fi
|
|
else
|
|
LogText "Result: this configuration file is skipped, as it contains usually no interesting details"
|
|
fi
|
|
done
|
|
if [ ! -z "${NGINX_CONF_FILES_ADDITIONS}" ]; then
|
|
for I in ${NGINX_CONF_FILES_ADDITIONS}; do
|
|
FILENAME=$(echo ${I} | ${AWKBINARY} -F/ '{print $NF}')
|
|
if [ ! "${FILENAME}" = "mime.types" ]; then
|
|
if FileIsReadable ${I}; then
|
|
Display --indent 8 --text "- ${I}"
|
|
ParseNginx ${I}
|
|
else
|
|
Display --indent 8 --text "- ${I}" --result "SKIPPED (NOT READABLE)" --color YELLOW
|
|
fi
|
|
else
|
|
LogText "Result: this configuration file is skipped, as it contains usually no interesting details"
|
|
fi
|
|
done
|
|
fi
|
|
fi
|
|
#
|
|
#################################################################################
|
|
#
|
|
# Test : HTTP-6710
|
|
# Description : Check SSL configuration of nginx
|
|
# Notes : Daemon of nginx should be running, nginx.conf should be found
|
|
if [ ${NGINX_RUNNING} -eq 1 -a ! -z "${NGINX_CONF_LOCATION}" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
|
|
Register --test-no HTTP-6710 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check nginx SSL configuration settings"
|
|
if [ ${SKIPTEST} -eq 0 ]; then
|
|
NGINX_SSL_SUGGESTION=0
|
|
if [ ${NGINX_SSL_ON} -eq 1 ]; then
|
|
LogText "Result: SSL is configured in nginx on one or more virtual hosts"
|
|
Display --indent 6 --text "- SSL configured" --result "${STATUS_YES}" --color GREEN
|
|
AddHP 5 5
|
|
# Cipher tests
|
|
if [ ${NGINX_SSL_CIPHERS} -eq 1 ]; then
|
|
Display --indent 8 --text "- Ciphers configured" --result "${STATUS_YES}" --color GREEN
|
|
else
|
|
Display --indent 8 --text "- Ciphers configured" --result "${STATUS_NO}" --color RED
|
|
NGINX_SSL_SUGGESTION=1
|
|
fi
|
|
|
|
if [ ${NGINX_SSL_PREFER_SERVER_CIPHERS} -eq 1 ]; then
|
|
Display --indent 8 --text "- Prefer server ciphers" --result "${STATUS_YES}" --color GREEN
|
|
else
|
|
Display --indent 8 --text "- Prefer server ciphers" --result "${STATUS_NO}" --color RED
|
|
NGINX_SSL_SUGGESTION=1
|
|
fi
|
|
|
|
if [ ${NGINX_SSL_PROTOCOLS} -eq 1 ]; then
|
|
Display --indent 8 --text "- Protocols configured" --result "${STATUS_YES}" --color GREEN
|
|
if [ ${NGINX_WEAK_SSL_PROTOCOL_FOUND} -eq 0 ]; then
|
|
Display --indent 10 --text "- Insecure protocols found" --result "${STATUS_NO}" --color GREEN
|
|
else
|
|
Display --indent 10 --text "- Insecure protocols found" --result "${STATUS_YES}" --color RED
|
|
ReportSuggestion "${TEST_NO}" "Disable weak protocol in nginx configuration"
|
|
fi
|
|
else
|
|
Display --indent 8 --text "- Protocols configured" --result "${STATUS_NO}" --color RED
|
|
NGINX_SSL_SUGGESTION=1
|
|
fi
|
|
else
|
|
LogText "Result: No SSL configuration found"
|
|
Display --indent 6 --text "- SSL configured" --result "${STATUS_NO}" --color RED
|
|
ReportSuggestion ${TEST_NO} "Add HTTPS to nginx virtual hosts for enhanced protection of sensitive data and privacy"
|
|
AddHP 1 5
|
|
fi
|
|
if [ ${NGINX_SSL_SUGGESTION} -eq 1 ]; then
|
|
LogText "Result: one or more parts of the nginx configuration could be enhanced regarding SSL"
|
|
ReportSuggestion "${TEST_NO}" "Change the HTTPS and SSL settings for enhanced protection of sensitive data and privacy"
|
|
fi
|
|
fi
|
|
#
|
|
#################################################################################
|
|
#
|
|
# Test : HTTP-6712
|
|
# Description : Check logging configuration of nginx
|
|
# Notes : Daemon of nginx should be running, nginx.conf should be found
|
|
if [ ${NGINX_RUNNING} -eq 1 -a ! -z "${NGINX_CONF_LOCATION}" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
|
|
Register --test-no HTTP-6712 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check nginx access logging"
|
|
if [ ${SKIPTEST} -eq 0 ]; then
|
|
NGINX_LOG_SUGGESTION=0
|
|
Display --indent 6 --text "- Checking log file configuration"
|
|
|
|
# Check for missing access log
|
|
if [ ${NGINX_ACCESS_LOG_MISSING} -eq 1 ]; then
|
|
NGINX_LOG_SUGGESTION=1
|
|
Display --indent 8 --text "- Missing log files (access_log)" --result "${STATUS_YES}" --color RED
|
|
else
|
|
Display --indent 8 --text "- Missing log files (access_log)" --result "${STATUS_NO}" --color GREEN
|
|
fi
|
|
# Access log disabled
|
|
if [ ${NGINX_ACCESS_LOG_DISABLED} -eq 1 ]; then
|
|
NGINX_LOG_SUGGESTION=1
|
|
LogText "Result: found one or more virtual hosts which have their access log disabled"
|
|
Display --indent 8 --text "- Disabled access logging" --result "${STATUS_YES}" --color RED
|
|
AddHP 2 3
|
|
else
|
|
LogText "Result: no virtual hosts found which have their access log disabled"
|
|
Display --indent 8 --text "- Disabled access logging" --result "${STATUS_NO}" --color GREEN
|
|
AddHP 3 3
|
|
fi
|
|
# Report suggestion
|
|
if [ ${NGINX_LOG_SUGGESTION} -eq 1 ]; then
|
|
ReportSuggestion ${TEST_NO} "Check your nginx access log for proper functioning"
|
|
fi
|
|
fi
|
|
#
|
|
#################################################################################
|
|
#
|
|
# Test : HTTP-6714
|
|
# Description : Check missing error logs in nginx
|
|
if [ ${NGINX_RUNNING} -eq 1 -a ! -z "${NGINX_CONF_LOCATION}" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
|
|
Register --test-no HTTP-6714 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check for missing error logs in nginx"
|
|
if [ ${SKIPTEST} -eq 0 ]; then
|
|
NGINX_LOG_SUGGESTION=0
|
|
# Check for missing access log
|
|
if [ ${NGINX_ERROR_LOG_MISSING} -eq 1 ]; then
|
|
NGINX_LOG_SUGGESTION=1
|
|
Display --indent 8 --text "- Missing log files (error_log)" --result "${STATUS_YES}" --color RED
|
|
else
|
|
Display --indent 8 --text "- Missing log files (error_log)" --result "${STATUS_NO}" --color GREEN
|
|
fi
|
|
# Report suggestion
|
|
if [ ${NGINX_LOG_SUGGESTION} -eq 1 ]; then
|
|
ReportSuggestion ${TEST_NO} "Check your nginx error_log statements"
|
|
fi
|
|
fi
|
|
#
|
|
#################################################################################
|
|
#
|
|
# Test : HTTP-6716
|
|
# Description : Check debug mode on error log in nginx
|
|
if [ ${NGINX_RUNNING} -eq 1 -a ! -z "${NGINX_CONF_LOCATION}" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
|
|
Register --test-no HTTP-6716 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check for debug mode on error log in nginx"
|
|
if [ ${SKIPTEST} -eq 0 ]; then
|
|
NGINX_LOG_SUGGESTION=0
|
|
# Access log in debug mode
|
|
if [ ${NGINX_ERROR_LOG_DEBUG} -eq 1 ]; then
|
|
NGINX_LOG_SUGGESTION=1
|
|
LogText "Result: found one or more virtual hosts which have their error log in debug mode"
|
|
Display --indent 8 --text "- Debugging mode on error_log" --result "${STATUS_YES}" --color RED
|
|
AddHP 2 3
|
|
else
|
|
LogText "Result: no virtual hosts found which have their error log in debug mode"
|
|
Display --indent 8 --text "- Debugging mode on error_log" --result "${STATUS_NO}" --color GREEN
|
|
AddHP 3 3
|
|
fi
|
|
# Report suggestion
|
|
if [ ${NGINX_LOG_SUGGESTION} -eq 1 ]; then
|
|
ReportSuggestion ${TEST_NO} "Check your nginx error_log statements and disable debug mode"
|
|
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 --category security --description "Check Nginx log files"
|
|
if [ ${SKIPTEST} -eq 0 ]; then
|
|
LogText "Test: Checking directories for files with log file definitions"
|
|
for DIR in ${NGINX_CONF_LOCS}; do
|
|
LogText "Test: Checking ${DIR}"
|
|
if [ -d ${DIR} ]; then
|
|
LogText "Result: Directory ${DIR} exists, so will be used as search path"
|
|
FIND=$(find ${DIR} -type f -exec ${GREPBINARY} access_log \{\} \; | ${GREPBINARY} -v "#" | ${AWKBINARY} '{ if($1=="access_log") { print $2 } }' | ${SEDBINARY} 's/;$//g' | ${SORTBINARY} -u)
|
|
if IsEmpty "${FIND}"; then
|
|
LogText "Result: no log files found"
|
|
else
|
|
LogText "Result: found one or more log files"
|
|
for FILE in ${FIND}; do
|
|
if [ -f ${FILE} ]; then
|
|
LogText "Found log file: ${FILE}"
|
|
Report "log_file=${FILE}"
|
|
else
|
|
LogText "Found non existing log file: ${FILE}"
|
|
fi
|
|
done
|
|
fi
|
|
else
|
|
LogText "Result: directory ${DIR} not found, skipping search in this directory."
|
|
fi
|
|
done
|
|
unset DIR; unset FILE; unset FIND
|
|
fi
|
|
#
|
|
#################################################################################
|
|
#
|
|
# Remove temp file (double check)
|
|
if [ ! -z "${TMPFILE}" ]; then if [ -f ${TMPFILE} ]; then rm -f ${TMPFILE}; fi; fi
|
|
if [ ! -z "${TMPFILE2}" ]; then if [ -f ${TMPFILE2} ]; then rm -f ${TMPFILE2}; fi; fi
|
|
|
|
WaitForKeyPress
|
|
|
|
#
|
|
#================================================================================
|
|
# Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com
|