#!/bin/sh ################################################################################# # # Lynis # ------------------ # # Copyright 2007-2013, Michael Boelen # Copyright 2007-2019, CISOfy # # Website : https://cisofy.com # Blog : http://linux-audit.com # GitHub : https://github.com/CISOfy/lynis # # 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. # ################################################################################# # # Read profile/template # ################################################################################# # # Set default values (should be equal to default.prf) SETTING_LOG_TESTS_INCORRECT_OS=1 SETTING_SHOW_REPORT_SOLUTION=0 DEPRECATED_OPTION="" # ################################################################################# # for PROFILE in ${PROFILES}; do LogText "Reading profile/configuration ${PROFILE}" # Show deprecation message for old config entries FOUND=0 #DATA=$(egrep "^config:" ${PROFILE} | od --address-radix=none -t a | sed 's/ /!space!/g') #if ! IsEmpty "${DATA}"; then FOUND=1; fi # Items such as 'apache:' DATA=$(egrep "^[a-z-]{1,}:" ${PROFILE} | od --address-radix=none -t a | sed 's/ /!space!/g') if ! IsEmpty "${DATA}"; then FOUND=1; fi if [ ${FOUND} -eq 1 ]; then DisplayWarning "Your profile contains old-style configuration entries. See log file for more details and how to convert these entries" LogText "Your profile has one or more configuration items that are in an old format (lines starting with key:value). They need to be converted into the new format (key=value)." LogText "Tip: Use egrep to see the relevant matches (egrep \"^[a-z-]{1,}:\" custom.prf)" sleep 30 fi # Security check for unexpected and possibly harmful escape characters DATA=$(grep -v '^$\|^ \|^#\|^config:' ${PROFILE} | tr -d '[:alnum:]/\[\]\(\)\-_\|,\.:;= \n\r' | od --address-radix=none -t a | sed 's/ /!space!/g') if ! IsEmpty "${DATA}"; then DisplayWarning "Your profile '${PROFILE}' contains unexpected characters. See the log file for more information." LogText "Found unexpected or possibly harmful characters in the profile. See output below." for I in "${DATA}"; do I=$(echo ${I} | sed 's/!space!/ /g') LogText "Output: ${I}" done sleep 30 fi # Now parse the profile and filter out unwanted characters DATA=$(egrep "^config:|^[a-z-].*=" ${PROFILE} | tr -dc '[:alnum:]/\[\]\(\)\-_\|,\.:;= \n\r' | sed 's/ /!space!/g') for CONFIGOPTION in ${DATA}; do if ContainsString "^config:" "${CONFIGOPTION}"; then # Old style configuration OPTION=$(echo ${CONFIGOPTION} | cut -d ':' -f2) VALUE=$(echo ${CONFIGOPTION} | cut -d ':' -f3 | sed 's/!space!/ /g') DEPRECATED_OPTION="${OPTION}" else OPTION=$(echo ${CONFIGOPTION} | cut -d '=' -f1) VALUE=$(echo ${CONFIGOPTION} | cut -d '=' -f2 | sed 's/!space!/ /g') fi Debug "Profile option set: ${OPTION} (with value ${VALUE})" case ${OPTION} in # Is Lynis Enterprise allowed to purge this system when it is becomes outdated? allow-auto-purge) FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)$") if [ ! -z "${FIND}" ]; then Report "allow-auto-purge=1" else Report "allow-auto-purge=0" fi ;; # Define which compliance standards are enabled # For this to work, the Enterprise plugins are needed compliance_standards | compliance-standards | check-compliance) # deprecated: compliance_standards COMPLIANCE_STANDARDS_ENABLED=$(echo ${VALUE} | tr ',' ' ') for STANDARD in ${COMPLIANCE_STANDARDS_ENABLED}; do case ${STANDARD} in cis) COMPLIANCE_ENABLE_CIS=1 ; Debug "Compliance scanning for CIS Benchmarks is enabled" ;; hipaa) COMPLIANCE_ENABLE_HIPAA=1 ; Debug "Compliance scanning for HIPAA is enabled" ;; iso27001) COMPLIANCE_ENABLE_ISO27001=1 ; Debug "Compliance scanning for ISO27001 is enabled" ;; pci-dss) COMPLIANCE_ENABLE_PCI_DSS=1 ; Debug "Compliance scanning for PCI DSS is enabled" ;; *) LogText "Result: Unknown compliance standard configured" ;; esac done ;; # Check for a specific value check-value) STRING=$(echo ${VALUE} | tr -d "[" | tr -d "]" | sed "s/, /,/g") CHECK_VALUE_ARRAY="${CHECK_OPTION_ARRAY} ${STRING}" ;; # Colored output colors) # Quick mode (SKIP_PLUGINS) might already be set outside profile, so store in different variable SETTING_COLORS=1 # default is yes FIND=$(echo "${VALUE}" | egrep "^(0|false|no)$") && COLORS=0 if [ ! -z "${FIND}" ]; then SETTING_COLORS=0; RemoveColors; fi Debug "Colors set to ${SETTING_COLORS}" AddSetting "colors" "${SETTING_COLORS}" "Colored screen output" unset SETTING_COLORS ;; # Ignore configuration data config-data | permdir | permfile) Debug "Ignoring configuration option, as it will be used by a specific test" ;; # Maximum number of WAITing connections connections-max-wait-state | connections_max_wait_state) OPTIONS_CONN_MAX_WAIT_STATE="${VALUE}" AddSetting "connections-max-wait-state" "${OPTIONS_CONN_MAX_WAIT_STATE}" "Connections (max-wait-state)" ;; # Append something to URL for control information control-url-append | control_url_append) CONTROL_URL_APPEND="${VALUE}" AddSetting "control-url-append" "${CONTROL_URL_APPEND}" "Control URL (append)" ;; # Prepend an URL before control information link control-url-prepend | control_url_prepend) CONTROL_URL_PREPEND="${VALUE}" AddSetting "control-url-prepend" "${CONTROL_URL_PREPEND}" "Control URL (prepend)" ;; # Protocol to use for control information link control-url-protocol | control_url_protocol) CONTROL_URL_PROTOCOL="${VALUE}" AddSetting "control-url-protocol" "${CONTROL_URL_PREPEND}" "Control URL (protocol)" ;; # Append something to URL for control information (only applies to CUST-*) custom-url-append | custom_url_append) CUSTOM_URL_APPEND="${VALUE}" AddSetting "custom-url-append" "${CUSTOM_URL_APPEND}" "Custom URL (append)" ;; # Prepend an URL before control information link (only applies to CUST-*) custom-url-prepend | custom_url_prepend) CUSTOM_URL_PREPEND="${VALUE}" AddSetting "custom-url-prepend" "${CUSTOM_URL_PREPEND}" "Custom URL (prepend)" ;; # Protocol to use for control information link custom-url-protocol | custom_url_protocol) CUSTOM_URL_PROTOCOL="${VALUE}" AddSetting "custom-url-protocol" "${CUSTOM_URL_PREPEND}" "Custom URL (protocol)" ;; # Do not check security repository in sources.list (Debian/Ubuntu) debian-skip-security-repository | debian_skip_security_repository) FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)") && OPTION_DEBIAN_SKIP_SECURITY_REPOSITORY=1 AddSetting "debian-skip-security-repository" "OPTION_DEBIAN_SKIP_SECURITY_REPOSITORY" "Skip checking for a security repository (Debian and others)" ;; # Debug status to show more details while running program debug) FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)") && DEBUG=1 Debug "Debug mode set to '${DEBUG}'" AddSetting "debug" "${DEBUG}" "Debugging mode" ;; # Development mode (--developer) developer-mode) FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)") && DEVELOPER_MODE=1 Debug "Developer mode set to ${DEVELOPER_MODE}" AddSetting "developer" "${DEVELOPER_MODE}" "Developer mode" ;; # Show non-zero exit code when errors are found error-on-warnings) FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)") && ERROR_ON_WARNINGS=1 Debug "Exit with different code on warnings is set to ${ERROR_ON_WARNINGS}" AddSetting "error-on-warnings" "${ERROR_ON_WARNINGS}" "Use non-zero exit code if one or more warnings were found" ;; # Skip FreeBSD port audit freebsd-skip-portaudit | freebsd_skip_portaudit) LogText "Option set: Skip FreeBSD portaudit" OPTION_FREEBSD_SKIP_PORTAUDIT="${VALUE}" ;; # Lynis Enterprise: group name - deprecrated option group) GROUP_NAME="${VALUE}" AddSetting "group" "${GROUP_NAME}" "Group" DEPRECATED_OPTION="group" ;; hostalias | host-alias) if [ ! -z "${VALUE}" ]; then Report "hostname_alias=${VALUE}"; fi ;; hostid) HOSTID="${VALUE}" ;; hostid2) HOSTID2="${VALUE}" ;; # Home directories to ignore during scans ignore-home-dir) Report "ignore-home-dir[]=${VALUE}" ;; # Language language | lang) LogText "Language set via profile to '${VALUE}'" if [ ! -z "${VALUE}" ]; then LANGUAGE="${VALUE}"; fi AddSetting "language" "${LANGUAGE}" "Language" ;; # Lynis Enterprise license key license-key | license_key) if [ ! -z "${VALUE}" ]; then LICENSE_KEY="${VALUE}" Report "license_key=${VALUE}" fi AddSetting "license-key" "${VALUE}" "License key" ;; # Do (not) log tests if they have an different operating system log-tests-incorrect-os | log_tests_incorrect_os) FIND=$(echo "${VALUE}" | egrep "^(0|false|no)") && SETTING_LOG_TESTS_INCORRECT_OS=0 Debug "Logging of tests with incorrect operating system set to ${SETTING_LOG_TESTS_INCORRECT_OS}" LOG_INCORRECT_OS=${SETTING_LOG_TESTS_INCORRECT_OS} ;; # What type of machine we are scanning (eg. personal, workstation or server) machine-role | machine_role) MACHINE_ROLE="${VALUE}" AddSetting "machine-role" "${MACHINE_ROLE}" "Machine role (personal, workstation or server)" ;; # Define if any found NTP daemon instance is configured as a server or client ntpd-role | ntpd_role) NTPD_ROLE="${VALUE}" AddSetting "ntpd-role" "${NTPD_ROLE}" "NTP role (server or client)" ;; # How much seconds to wait between tests pause_between_tests | pause-between-tests) TEST_PAUSE_TIME="${VALUE}" AddSetting "pause-between-tests" "${TEST_PAUSE_TIME}" "Pause between tests (in seconds)" ;; # Plugin plugin) LogText "Plugin '${VALUE}' enabled according profile (${PROFILE})" ;; disable-plugin) LogText "Plugin '${VALUE}' disabled according profile (${PROFILE})" DISABLED_PLUGINS="${DISABLED_PLUGINS} ${VALUE}" ;; # Plugin directory plugindir | plugin-dir) if IsEmpty "${PLUGINDIR}"; then PLUGINDIR="${VALUE}" else LogText "Plugin directory was already set to ${PLUGINDIR} before (most likely as a program argument), not overwriting" fi AddSetting "plugin-dir" "${PLUGINDIR}" "Plugin directory" ;; # Profile name profile-name | profile_name) PROFILE_NAME="${VALUE}" ;; # Quick (no waiting for keypresses) quick) # Quick mode might already be set outside profile, so store in different variable SETTING_QUICK_MODE=1 # default is yes FIND=$(echo "${VALUE}" | egrep "^(0|false|no)$") && QUICKMODE=0 if [ ! -z "${FIND}" ]; then SETTING_QUICK_MODE=1; fi Debug "Quickmode set to ${SETTING_QUICK_MODE}" AddSetting "quick" "${SETTING_QUICK_MODE}" "Quick mode (non-interactive)" ;; # Refresh software repositories refresh-repositories) SETTING_REFRESH_REPOSITORIES=1 # default is yes FIND=$(echo "${VALUE}" | egrep "^(0|false|no)$") && REFRESH_REPOSITORIES=0 if [ ! -z "${FIND}" ]; then SETTING_REFRESH_REPOSITORIES=0; fi Debug "Refreshing repositories set to ${SETTING_REFRESH_REPOSITORIES}" AddSetting "refresh-repositories" "${SETTING_REFRESH_REPOSITORIES}" "Refresh repositories (for vulnerable package detection)" ;; # Show more details in report show-report-solution) SETTING_SHOW_REPORT_SOLUTION=${SHOW_REPORT_SOLUTION} FIND=$(echo "${VALUE}" | egrep "^(0|false|no)$") && SHOW_REPORT_SOLUTION=0 if [ ! -z "${FIND}" ]; then SETTING_SHOW_REPORT_SOLUTION=0; fi Debug "Show report details (solution) set to ${SETTING_SHOW_REPORT_SOLUTION}" ;; # Inline tips about tool (default enabled) show_tool_tips | show-tool-tips) SETTING_SHOW_TOOL_TIPS=1 # default is yes FIND=$(echo "${VALUE}" | egrep "^(0|false|no)$") && SHOW_TOOL_TIPS=0 if [ ! -z "${FIND}" ]; then SETTING_SHOW_TOOL_TIPS=0; fi Debug "Show tool tips set to ${SETTING_SHOW_TOOL_TIPS}" AddSetting "show-tool-tips" "${SETTING_SHOW_TOOL_TIPS}" "Show tool tips" ;; # Show warnings only show-warnings-only) QUIET=1 QUICKMODE=1 FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)$") && SHOW_WARNINGS_ONLY=1 Debug "Show warnings only set to ${SHOW_WARNINGS_ONLY}" AddSetting "show-warnings-only" "${SHOW_WARNINGS_ONLY}" "Show only warnings" ;; # Skip plugins skip-plugins) # Skip plugins (SKIP_PLUGINS) might already be set, so store in different variable SETTING_SKIP_PLUGINS=0 # default is no FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)$") && SKIP_PLUGINS=1 if [ ! -z "${FIND}" ]; then SETTING_SKIP_PLUGINS=1; fi Debug "Skip plugins is set to ${SETTING_SKIP_PLUGINS}" AddSetting "skip-plugins" "${SETTING_SKIP_PLUGINS}" "Skip plugins" ;; # Which tests to skip (skip-test=ABCD-1234 or skip-test=ABCD-1234:subtest) skip-test) STRING=$(echo ${VALUE} | tr '[:lower:]' '[:upper:]') SKIP_TESTS="${SKIP_TESTS} ${STRING}" ;; # Do not check the latest version on the internet skip_upgrade_test | skip-upgrade-test) FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)") && SKIP_UPGRADE_TEST=1 Debug "Skip upgrade test set to ${SKIP_UPGRADE_TEST}" ;; # SSL paths ssl-certificate-paths) SSL_CERTIFICATE_PATHS="${VALUE}" Debug "SSL paths set to ${SSL_CERTIFICATE_PATHS}" AddSetting "ssl-certificate-paths" "${SSL_CERTIFICATE_PATHS}" "Paths for SSL certificates" ;; ssl-certificate-paths-to-ignore) # Retrieve paths to ignore when searching for certificates. Strip special characters, replace possible spaces SSL_CERTIFICATE_PATHS_TO_IGNORE=$(echo ${VALUE} | tr -d '[:cntrl:]' | sed 's/ /__space__/g' | tr ':' ' ') Debug "SSL paths to ignore: ${SSL_CERTIFICATE_PATHS_TO_IGNORE}" AddSetting "ssl-certificate-paths-to-ignore" "${SSL_CERTIFICATE_PATHS_TO_IGNORE}" "Paths that should be ignored for SSL certificates" ;; # Set strict mode for development and quality purposes strict) FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)") && SET_STRICT=1 ;; # The name of the customer/client that uses this system system-customer-name) if [ ! -z "${VALUE}" ]; then Report "system-customer-name=${VALUE}"; fi ;; # The groups linked to a system (system-groups=customers,webservers,production) system-groups) if [ ! -z "${VALUE}" ]; then Report "system-groups=${VALUE}"; fi ;; # Tags (tags=db,production,ssn-1304) tags) if [ ! -z "${VALUE}" ]; then Report "tags=${VALUE}"; fi ;; # Define what kind of scan we are performing test_scan_mode | test-scan-mode) if [ "${VALUE}" = "light" ]; then SCAN_TEST_LIGHT="YES"; SCAN_TEST_MEDIUM="NO"; SCAN_TEST_HEAVY="NO"; fi if [ "${VALUE}" = "normal" ]; then SCAN_TEST_LIGHT="YES"; SCAN_TEST_MEDIUM="YES"; SCAN_TEST_HEAVY="NO"; fi if [ "${VALUE}" = "full" ]; then SCAN_TEST_LIGHT="YES"; SCAN_TEST_MEDIUM="YES"; SCAN_TEST_HEAVY="YES"; fi AddSetting "test-scan-mode" "${VALUE}" "Scan mode" ;; # Perform upload upload) SETTING_UPLOAD=no # default FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)$") && UPLOAD_DATA=1 if [ ! -z "${FIND}" ]; then SETTING_UPLOAD=1; fi Debug "Upload set to ${SETTING_UPLOAD}" AddSetting "upload" "${SETTING_UPLOAD}" "Data upload after scanning" unset SETTING_UPLOAD ;; # Compression of uploads (enabled by default) upload_compressed | compressed-uploads) if [ "${VALUE}" = "0" ]; then COMPRESSED_UPLOADS=0; fi AddSetting "compressed-uploads" "${COMPRESSED_UPLOADS}" "Compressed uploads" ;; # Options during upload of data upload_options | upload-options) UPLOAD_OPTIONS="${VALUE}" AddSetting "upload-options" "${UPLOAD_OPTIONS}" "Upload options" ;; # Proxy settings upload_proxy_port | proxy-port | upload-proxy-port) UPLOAD_PROXY_PORT="${VALUE}" AddSetting "upload-proxy-port" "${UPLOAD_PROXY_PORT}" "Proxy port" ;; upload_proxy_protocol | proxy-protocol) UPLOAD_PROXY_PROTOCOL="${VALUE}" AddSetting "upload-proxy-protocol" "${UPLOAD_PROXY_PROTOCOL}" "Proxy protocol" ;; upload_proxy_server | proxy-server) UPLOAD_PROXY_SERVER="${VALUE}" AddSetting "upload-proxy-server" "${UPLOAD_PROXY_PORT}" "Proxy server" ;; # Receiving system (IP address or hostname) upload-server) UPLOAD_SERVER="${VALUE}" AddSetting "upload-server" "${UPLOAD_SERVER}" "Upload server (ip or hostname)" ;; # Specify an alternative upload tool upload-tool) if [ -f "${VALUE}" ]; then UPLOAD_TOOL="${VALUE}"; fi AddSetting "upload-tool" "${UPLOAD_TOOL}" "Upload tool" ;; # Specify arguments for an alternative upload tool upload-tool-arguments) UPLOAD_TOOL_ARGS="${VALUE}" AddSetting "upload-tool-arguments" "${UPLOAD_TOOL_ARGS}" "Upload tool (arguments)" ;; # Verbose output (--verbose) verbose) FIND=$(echo "${VALUE}" | egrep "^(1|true|yes)") && VERBOSE=1 Debug "Verbose set to ${VERBOSE}" AddSetting "verbose" "${VERBOSE}" "Verbose output" ;; ######################################################################################################## ## DEPRECATED ITEMS ######################################################################################################## # Deprecated: skip tests test_skip_always) STRING=$(echo ${VALUE} | tr '[:lower:]' '[:upper:]') SKIP_TESTS="${SKIP_TESTS} ${STRING}" LogText "[deprecated option] Tests to be skipped: ${VALUE}" DisplayToolTip "Replace deprecated option 'test_skip_always' and replace with 'skip-test' (add to custom.prf)" ;; # Deprecated: receiving system (IP address or hostname) upload_server) UPLOAD_SERVER="${VALUE}" AddSetting "upload-server" "${UPLOAD_SERVER}" "Upload server (ip or hostname)" DisplayToolTip "Replace deprecated option 'upload_server' and replace with 'upload-server' (add to custom.prf)" ;; # Catch all bad options and bail out *) LogText "Unknown option ${OPTION} (with value: ${VALUE})" ${ECHOCMD:-echo} "" ${ECHOCMD:-echo} "${RED}Error${NORMAL}: found one or more errors in profile ${PROFILE}" ${ECHOCMD:-echo} "" ${ECHOCMD:-echo} "" ${ECHOCMD:-echo} "Full line: ${CONFIGOPTION}" ${ECHOCMD:-echo} "${WHITE}Details${NORMAL}: Unknown option '${YELLOW}${OPTION}${NORMAL}' found (with value: ${VALUE})" ${ECHOCMD:-echo} "" ExitFatal ;; esac done done # ################################################################################# # SKIP_TESTS=$(echo ${SKIP_TESTS} | sed "s/^ //") if [ ! -z "${SKIP_TESTS}" ]; then LogText "Skip tests: ${SKIP_TESTS}"; fi # ################################################################################# # # Add group name to report - deprecated if [ ! -z "${GROUP_NAME}" ]; then Report "group=${GROUP_NAME}"; fi # ################################################################################# # # Set default values (only if not configured in profile) if [ -z "${MACHINE_ROLE}" ]; then MACHINE_ROLE="server" LogText "Set option to default value: MACHINE_ROLE --> ${MACHINE_ROLE}" fi if [ -z "${NTPD_ROLE}" ]; then NTPD_ROLE="client" LogText "Set option to default value: NTPD_ROLE --> ${NTPD_ROLE}" fi # ################################################################################# # # Register the discovered settings AddSetting "log-tests-incorrect-os" "${SETTING_LOG_TESTS_INCORRECT_OS}" "Logging of tests that have a different OS" AddSetting "show-report-solution" "${SETTING_SHOW_REPORT_SOLUTION}" "Show more details in report (solution)" AddSetting "skip-upgrade-test" "${SKIP_UPGRADE_TEST}" "Skip upgrade test" AddSetting "strict" "${SET_STRICT}" "Perform strict code test of scripts" unset SETTING_LOG_TESTS_INCORRECT_OS SETTING_SHOW_REPORT_SOLUTION # ################################################################################# # if [ ! -z "${DEPRECATED_OPTION}" ]; then ReportWarning "LYNIS" "One or more deprecated options used" "${DEPRECATED_OPTION}" "Update your profile" fi # ################################################################################# # Display --indent 2 --text "- Checking profiles..." --result "DONE" --color GREEN LogTextBreak #================================================================================ # Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com