mirror of https://github.com/CISOfy/lynis.git
332 lines
17 KiB
Bash
332 lines
17 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 2007-2021, 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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# Report
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#
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#################################################################################
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#
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# Add additional data fields to the report file at the end of the scan
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Report "dhcp_client_running=${DHCP_CLIENT_RUNNING}"
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Report "arpwatch_running=${ARPWATCH_RUNNING}"
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# Report firewall installed for now, if we found one active. Next step would be determining binaries first and apply additional checks.
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Report "firewall_active=${FIREWALL_ACTIVE}"
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Report "firewall_empty_ruleset=${FIREWALL_EMPTY_RULESET}"
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Report "firewall_installed=${FIREWALL_ACTIVE}"
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if [ -n "${INSTALLED_PACKAGES}" ]; then Report "installed_packages_array=${INSTALLED_PACKAGES}"; fi
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Report "package_audit_tool=${PACKAGE_AUDIT_TOOL}"
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Report "package_audit_tool_found=${PACKAGE_AUDIT_TOOL_FOUND}"
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Report "vulnerable_packages_found=${VULNERABLE_PACKAGES_FOUND}"
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#
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#################################################################################
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#
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# Hardening Index
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#
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# Goal:
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# Provide a visual way to show how much the system is hardened
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#
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# Important:
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# The index gives a simplified version of the measures taken on the system.
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# It should be used to get a first impression about the state of the system or to compare similar systems.
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# Getting the maximum score (100 or full bar) does not indicate that the system is fully secured.
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# If no hardening has been found, set value to 1
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if [ ${HPPOINTS} -eq 0 ]; then HPPOINTS=1; HPTOTAL=100; fi
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HPINDEX=$((HPPOINTS * 100 / HPTOTAL))
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HPAOBLOCKS=$((HPPOINTS * 20 / HPTOTAL))
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# Set color related to rating
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if [ ${HPINDEX} -lt 50 ]; then
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HPCOLOR="${RED}"
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HIDESCRIPTION="System has not or a low amount been hardened"
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elif [ ${HPINDEX} -gt 49 -a ${HPINDEX} -lt 80 ]; then
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HPCOLOR="${YELLOW}"
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HIDESCRIPTION="System has been hardened, but could use additional hardening"
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elif [ ${HPINDEX} -gt 79 -a ${HPINDEX} -lt 90 ]; then
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HPCOLOR="${GREEN}"
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HIDESCRIPTION="System seem to be decent hardened"
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elif [ ${HPINDEX} -gt 89 ]; then
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HPCOLOR="${GREEN}"
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HIDESCRIPTION="System seem to be well hardened"
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fi
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case ${HPAOBLOCKS} in
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0) HPBLOCKS="#"; HPEMPTY=" " ;;
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1) HPBLOCKS="#"; HPEMPTY=" " ;;
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2) HPBLOCKS="##"; HPEMPTY=" " ;;
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3) HPBLOCKS="###"; HPEMPTY=" " ;;
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4) HPBLOCKS="####"; HPEMPTY=" " ;;
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5) HPBLOCKS="#####"; HPEMPTY=" " ;;
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6) HPBLOCKS="######"; HPEMPTY=" " ;;
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7) HPBLOCKS="#######"; HPEMPTY=" " ;;
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8) HPBLOCKS="########"; HPEMPTY=" " ;;
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9) HPBLOCKS="#########"; HPEMPTY=" " ;;
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10) HPBLOCKS="##########"; HPEMPTY=" " ;;
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11) HPBLOCKS="###########"; HPEMPTY=" " ;;
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12) HPBLOCKS="############"; HPEMPTY=" " ;;
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13) HPBLOCKS="#############"; HPEMPTY=" " ;;
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14) HPBLOCKS="##############"; HPEMPTY=" " ;;
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15) HPBLOCKS="###############"; HPEMPTY=" " ;;
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16) HPBLOCKS="################"; HPEMPTY=" " ;;
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17) HPBLOCKS="#################"; HPEMPTY=" " ;;
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18) HPBLOCKS="##################"; HPEMPTY=" " ;;
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19) HPBLOCKS="###################"; HPEMPTY=" " ;;
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20) HPBLOCKS="####################"; HPEMPTY="" ;;
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esac
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HPGRAPH="[${HPCOLOR}${HPBLOCKS}${NORMAL}${HPEMPTY}]"
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LogText "Hardening index : [${HPINDEX}] [${HPBLOCKS}${HPEMPTY}]"
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LogText "Hardening strength: ${HIDESCRIPTION}"
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#
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#################################################################################
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#
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# Only show overview if not running in quiet mode
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if [ ${QUIET} -eq 0 ]; then
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echo ""; echo "================================================================================"
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echo ""; echo " -[ ${WHITE}${PROGRAM_NAME} ${PROGRAM_VERSION} Results${NORMAL} ]-"
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echo "";
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if [ ${SHOW_REPORT} -eq 1 ]; then
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LogTextBreak
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# Show test results overview
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if [ -z "${CONTROL_URL_PROTOCOL}" ]; then CONTROL_URL_PROTOCOL="https"; fi
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if [ -z "${CONTROL_URL_PREPEND}" ]; then CONTROL_URL_PREPEND="cisofy.com/lynis/controls/"; fi
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if [ -z "${CONTROL_URL_APPEND}" ]; then CONTROL_URL_APPEND="/"; fi
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if [ -z "${CUSTOM_URL_PROTOCOL}" ]; then CUSTOM_URL_PROTOCOL="https"; fi
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if [ -z "${CUSTOM_URL_PREPEND}" ]; then CUSTOM_URL_PREPEND="your-domain.example.org/controls/"; fi
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if [ -z "${CUSTOM_URL_APPEND}" ]; then CUSTOM_URL_APPEND="/"; fi
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# Show warnings from logfile
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SWARNINGS=$(${GREPBINARY} 'Warning: ' ${LOGFILE} | sed 's/ /!space!/g')
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if [ -z "${SWARNINGS}" ]; then
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echo " ${OK}Great, no warnings${NORMAL}"; echo ""
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else
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echo " ${WARNING}Warnings${NORMAL} (${TOTAL_WARNINGS}):"
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echo " ${WHITE}----------------------------${NORMAL}"
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for WARNING in ${SWARNINGS}; do
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SOLUTION=""
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SHOWWARNING=$(echo ${WARNING} | sed 's/!space!/ /g' | sed 's/^.* Warning: //' | sed 's/\[details:\(.*\)\] \[solution:\(.*\)\]//' | sed 's/test://')
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ADDLINK=$(echo ${WARNING} | sed 's/!space!/ /g' | sed 's/^.* Warning: \(.*\)\[test://' | sed 's/\]\(.*\)]//' | ${AWKBINARY} -F: '{print $1}')
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DETAILS=$(echo ${WARNING} | sed 's/!space!/ /g' | sed 's/^.* Warning: \(.*\)\[details://' | sed 's/\]\(.*\)]//')
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SUGGESTION_PIECES=$(echo ${WARNING} | sed 's/\[/ [/g')
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for PIECE in ${SUGGESTION_PIECES}; do
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if [ -z "${SOLUTION}" ]; then
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SEARCH=$(echo ${PIECE} | grep "^\[solution:")
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if [ $? -eq 0 ]; then SOLUTION=$(echo ${SEARCH} | sed 's/!space!/ /g' | sed 's/solution://' | sed 's/text://' | tr -d '[]'); fi
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fi
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done
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IS_CUSTOM=$(echo ${ADDLINK} | grep "^CUST")
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echo " ${RED}!${NORMAL} ${SHOWWARNING}"
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if [ ! "${DETAILS}" = "-" -a -n "${DETAILS}" ]; then echo " - Details : ${CYAN}${DETAILS}${NORMAL}"; fi
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if [ ${SHOW_REPORT_SOLUTION} -eq 1 -a ! "${SOLUTION}" = "-" ]; then echo " - Solution : ${SOLUTION}"; fi
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if [ -z "${IS_CUSTOM}" ]; then
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echo " ${CONTROL_URL_PROTOCOL}://${CONTROL_URL_PREPEND}${ADDLINK}${CONTROL_URL_APPEND}"
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else
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echo " ${CUSTOM_URL_PROTOCOL}://${CUSTOM_URL_PREPEND}${ADDLINK}${CUSTOM_URL_APPEND}"
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fi
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echo ""
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done
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fi
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# Show suggestions from logfile
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SUGGESTIONS=$(${GREPBINARY} 'Suggestion: ' ${LOGFILE} | sed 's/ /!space!/g')
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if [ -z "${SUGGESTIONS}" ]; then
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echo " ${OK}No suggestions${NORMAL}"; echo ""
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else
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echo " ${YELLOW}Suggestions${NORMAL} (${TOTAL_SUGGESTIONS}):"
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echo " ${WHITE}----------------------------${NORMAL}"
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for SUGGESTION in ${SUGGESTIONS}; do
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SOLUTION=""
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SHOWSUGGESTION=$(echo ${SUGGESTION} | sed 's/!space!/ /g' | sed 's/^.* Suggestion: //' | sed 's/\[details:\(.*\)\] \[solution:\(.*\)\]//' | sed 's/test://')
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RELATED_CONTROL=$(echo ${SUGGESTION} | sed 's/!space!/ /g' | sed 's/^.* Suggestion: \(.*\)\[test://' | sed 's/\]\(.*\)]//' | ${AWKBINARY} -F: '{print $1}')
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ADDLINK="${RELATED_CONTROL}"
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DETAILS=$(echo ${SUGGESTION} | sed 's/!space!/ /g' | sed 's/^.* Suggestion: \(.*\)\[details://' | sed 's/\]\(.*\)]//')
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SUGGESTION_PIECES=$(echo ${SUGGESTION} | sed 's/\[/ [/g')
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for PIECE in ${SUGGESTION_PIECES}; do
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if [ -z "${SOLUTION}" ]; then
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SEARCH=$(echo ${PIECE} | grep "^\[solution:")
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if [ $? -eq 0 ]; then SOLUTION=$(echo ${SEARCH} | sed 's/!space!/ /g' | sed 's/solution://' | sed 's/text://' | tr -d '[]'); fi
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fi
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done
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IS_CUSTOM=$(echo ${ADDLINK} | grep "^CUST")
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echo " ${YELLOW}*${NORMAL} ${SHOWSUGGESTION}"
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if [ ! "${DETAILS}" = "-" -a -n "${DETAILS}" ]; then echo " - Details : ${CYAN}${DETAILS}${NORMAL}"; fi
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if [ ${SHOW_REPORT_SOLUTION} -eq 1 -a ! "${SOLUTION}" = "-" ]; then echo " - Solution : ${SOLUTION}"; fi
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# Show relevant articles if the database is available
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if [ -f ${DBDIR}/control-links.db ]; then
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echo " - Related resources"
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ARTICLES=$($AWKBINARY -F \; -v control=${RELATED_CONTROL} '{if($1==control && $2=="blog"){print $2";"$3";"$4";"}}' "${DBDIR}/control-links.db" | sed 's/ /!space!/g')
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if [ -n "${ARTICLES}" ]; then
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for ITEM in ${ARTICLES}; do
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ITEM=$(echo ${ITEM} | sed 's/!space!/ /g')
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ARTICLE=$(echo ${ITEM} | awk -F\; '{print $2}')
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ARTICLE_LINK=$(echo ${ITEM} | awk -F\; '{print $3}')
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echo " * Article: ${CYAN}${ARTICLE}${NORMAL}: ${ARTICLE_LINK}"
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done
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fi
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fi
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if [ -z "${IS_CUSTOM}" ]; then
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echo " * Website: ${GRAY}${CONTROL_URL_PROTOCOL}://${CONTROL_URL_PREPEND}${ADDLINK}${CONTROL_URL_APPEND}${NORMAL}"
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else
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echo " * Details: ${GRAY}${CUSTOM_URL_PROTOCOL}://${CUSTOM_URL_PREPEND}${ADDLINK}${CUSTOM_URL_APPEND}${NORMAL}"
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fi
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echo ""
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done
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fi
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# Show tip on how to continue (next steps)
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if [ ! "${SWARNINGS}" = "" -o ! "${SUGGESTIONS}" = "" ]; then
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echo " ${CYAN}Follow-up${NORMAL}:"
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echo " ${WHITE}----------------------------${NORMAL}"
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echo " ${WHITE}-${NORMAL} Show details of a test (lynis show details TEST-ID)"
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echo " ${WHITE}-${NORMAL} Check the logfile for all details (less ${LOGFILE})"
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echo " ${WHITE}-${NORMAL} Read security controls texts (https://cisofy.com)"
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if [ ${UPLOAD_DATA} -eq 0 ]; then echo " ${WHITE}-${NORMAL} Use --upload to upload data to central system (Lynis Enterprise users)"; fi
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echo ""
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fi
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echo "================================================================================"
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echo ""
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echo " ${WHITE}Lynis security scan details${NORMAL}:"
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echo ""
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echo " ${CYAN}Hardening index${NORMAL} : ${WHITE}${HPINDEX}${NORMAL} ${HPGRAPH}"
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echo " ${CYAN}Tests performed${NORMAL} : ${WHITE}${CTESTS_PERFORMED}${NORMAL}"
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if [ ${SKIP_PLUGINS} -eq 0 ]; then
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echo " ${CYAN}Plugins enabled${NORMAL} : ${WHITE}${N_PLUGIN_ENABLED}${NORMAL}"
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else
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echo " ${CYAN}Plugins enabled${NORMAL} : ${WHITE}Skipped${NORMAL}"
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fi
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echo ""
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echo " ${WHITE}Components${NORMAL}:"
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if [ ${FIREWALL_ACTIVE} -eq 1 ]; then FIREWALL="${GREEN}V"; else FIREWALL="${RED}X"; fi
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if [ ${MALWARE_SCANNER_INSTALLED} -eq 1 ]; then MALWARE="${GREEN}V"; else MALWARE="${RED}X"; fi
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if [ ${IDS_IPS_TOOL_FOUND} -eq 1 ]; then IDSIPS="${GREEN}V"; else IDSIPS="${RED}X"; fi
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echo " - Firewall [${FIREWALL}${NORMAL}]"
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#echo " - Integrity monitoring [${IDSIPS}${NORMAL}]"
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#echo " - Intrusion software [${IDSIPS}${NORMAL}]"
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echo " - Malware scanner [${MALWARE}${NORMAL}]"
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echo ""
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echo " ${SECTION}Scan mode${NORMAL}:"
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if [ ${DEVOPS_MODE} -eq 1 ]; then
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echo " Normal [ ] Forensics [ ] Integration [V] Pentest [ ]"
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elif [ ${FORENSICS_MODE} -eq 1 ]; then
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echo " Normal [ ] Forensics [V] Integration [ ] Pentest [ ]"
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elif [ ${PENTESTINGMODE} -eq 1 ]; then
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if [ ${PRIVILEGED} -eq 0 ]; then
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echo " Normal [ ] Forensics [ ] Integration [ ] Pentest [V] (running non-privileged)"
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else
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echo " Normal [ ] Forensics [ ] Integration [ ] Pentest [V] (running privileged)"
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fi
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else
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echo " Normal [V] Forensics [ ] Integration [ ] Pentest [ ]"
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fi
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echo ""
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echo " ${SECTION}Lynis modules${NORMAL}:"
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if [ ${COMPLIANCE_TESTS_PERFORMED} -eq 1 ]; then
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if [ ${COMPLIANCE_FINDINGS_FOUND} -eq 0 ]; then COMPLIANCE="${GREEN}V"; else COMPLIANCE="${RED}X"; fi
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else
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COMPLIANCE="${YELLOW}?"
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fi
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echo " - Compliance status [${COMPLIANCE}${NORMAL}]"
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echo " - Security audit [${GREEN}V${NORMAL}]"
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echo " - Vulnerability scan [${GREEN}V${NORMAL}]"
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echo ""
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echo " ${SECTION}Files${NORMAL}:"
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echo " - Test and debug information : ${WHITE}${LOGFILE}${NORMAL}"
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echo " - Report data : ${WHITE}${REPORTFILE}${NORMAL}"
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echo ""
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echo "================================================================================"
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if [ ${PROGRAM_LV} -gt ${PROGRAM_AC} ]; then
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echo " ${NOTICE}Notice: ${WHITE}${PROGRAM_NAME} ${GEN_UPDATE_AVAILABLE}${NORMAL}"
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echo " ${GEN_CURRENT_VERSION} : ${WHITE}${PROGRAM_AC}${NORMAL} ${GEN_LATEST_VERSION} : ${WHITE}${PROGRAM_LV}${NORMAL}"
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echo "================================================================================"
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else
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###########################################################################################
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#
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# Software quality program
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# Only provide this hint when the tool is at the latest version
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#
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###########################################################################################
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if [ ! "${PROGRAM_LV}" = "0" -a ! "${REPORTFILE}" = "" -a ! "${REPORTFILE}" = "/dev/null" ]; then
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# Determine if the quality of the program can be increased by filtering out the exceptions
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FIND=$(${GREPBINARY} "^exception" ${REPORTFILE})
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if [ -n "${FIND}" ]; then
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echo ""
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echo " ${RED}${NOTE_EXCEPTIONS_FOUND}${NORMAL}"
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echo " ${WHITE}${NOTE_EXCEPTIONS_FOUND_DETAILED}!${NORMAL}"
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echo ""
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echo " ${CYAN}${GEN_WHAT_TO_DO}:${NORMAL}"
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echo " ${TEXT_YOU_CAN_HELP_LOGFILE} (${LOGFILE})."
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echo " Go to https://cisofy.com/contact/ and send your file to the e-mail address listed"
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echo ""
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echo "================================================================================"
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fi
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fi
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fi
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# Display what tests are skipped in non-privileged scan for awareness
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if [ ${PENTESTINGMODE} -eq 1 -a ! "${SKIPPED_TESTS_ROOTONLY}" = "" ]; then
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echo ""
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echo " ${PURPLE}${NOTE_SKIPPED_TESTS_NON_PRIVILEGED}${NORMAL}"
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FIND=$(echo ${SKIPPED_TESTS_ROOTONLY} | sed 's/ /:space:/g')
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# Split entries
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FIND=$(echo ${FIND} | sed 's/====/ /g')
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# Display found entries
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for ITEM in ${FIND}; do
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OUTPUT=$(echo ${ITEM} | sed 's/:space:/ /g')
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echo " ${OUTPUT}"
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done
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echo ""
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echo "================================================================================"
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fi
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echo ""
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fi
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fi
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# Report data, even if it is not displayed on screen
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Report "hardening_index=${HPINDEX}"
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if [ ${QUIET} -eq 0 ]; then
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echo " ${WHITE}${PROGRAM_NAME}${NORMAL} ${PROGRAM_VERSION}"
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echo ""
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echo " Auditing, system hardening, and compliance for UNIX-based systems"
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echo " (Linux, macOS, BSD, and others)"
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echo ""
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echo " ${PROGRAM_COPYRIGHT}"
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echo " ${WHITE}${PROGRAM_EXTRAINFO}${NORMAL}"
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echo ""
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echo "================================================================================"
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fi
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#
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#================================================================================
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# Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com
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