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|
#!/bin/sh
#################################################################################
#
# Lynis
# ------------------
#
# Copyright (c) Michael Boelen, CISOfy, and many contributors.
#
# Website : https://cisofy.com/
# Blog : https://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.
#
#################################################################################
#
# Report
#
#################################################################################
#
# Add additional data fields to the report file at the end of the scan
Report "dhcp_client_running=${DHCP_CLIENT_RUNNING}"
Report "arpwatch_running=${ARPWATCH_RUNNING}"
# Report firewall installed for now, if we found one active. Next step would be determining binaries first and apply additional checks.
Report "firewall_active=${FIREWALL_ACTIVE}"
Report "firewall_empty_ruleset=${FIREWALL_EMPTY_RULESET}"
Report "firewall_installed=${FIREWALL_ACTIVE}"
if [ -n "${INSTALLED_PACKAGES}" ]; then Report "installed_packages_array=${INSTALLED_PACKAGES}"; fi
Report "package_audit_tool=${PACKAGE_AUDIT_TOOL}"
Report "package_audit_tool_found=${PACKAGE_AUDIT_TOOL_FOUND}"
Report "vulnerable_packages_found=${VULNERABLE_PACKAGES_FOUND}"
#
#################################################################################
#
# Hardening Index
#
# Goal:
# Provide a visual way to show how much the system is hardened
#
# Important:
# The index gives a simplified version of the measures taken on the system.
# It should be used to get a first impression about the state of the system or to compare similar systems.
# Getting the maximum score (100 or full bar) does not indicate that the system is fully secured.
# If no hardening has been found, set value to 1
if [ ${HPPOINTS} -eq 0 ]; then HPPOINTS=1; HPTOTAL=100; fi
HPINDEX=$((HPPOINTS * 100 / HPTOTAL))
HPAOBLOCKS=$((HPPOINTS * 20 / HPTOTAL))
# Set color related to rating
if [ ${HPINDEX} -lt 50 ]; then
HPCOLOR="${RED}"
HIDESCRIPTION="System has not or a low amount been hardened"
elif [ ${HPINDEX} -gt 49 -a ${HPINDEX} -lt 80 ]; then
HPCOLOR="${YELLOW}"
HIDESCRIPTION="System has been hardened, but could use additional hardening"
elif [ ${HPINDEX} -gt 79 -a ${HPINDEX} -lt 90 ]; then
HPCOLOR="${GREEN}"
HIDESCRIPTION="System seem to be decent hardened"
elif [ ${HPINDEX} -gt 89 ]; then
HPCOLOR="${GREEN}"
HIDESCRIPTION="System seem to be well hardened"
fi
case ${HPAOBLOCKS} in
0) HPBLOCKS="#"; HPEMPTY=" " ;;
1) HPBLOCKS="#"; HPEMPTY=" " ;;
2) HPBLOCKS="##"; HPEMPTY=" " ;;
3) HPBLOCKS="###"; HPEMPTY=" " ;;
4) HPBLOCKS="####"; HPEMPTY=" " ;;
5) HPBLOCKS="#####"; HPEMPTY=" " ;;
6) HPBLOCKS="######"; HPEMPTY=" " ;;
7) HPBLOCKS="#######"; HPEMPTY=" " ;;
8) HPBLOCKS="########"; HPEMPTY=" " ;;
9) HPBLOCKS="#########"; HPEMPTY=" " ;;
10) HPBLOCKS="##########"; HPEMPTY=" " ;;
11) HPBLOCKS="###########"; HPEMPTY=" " ;;
12) HPBLOCKS="############"; HPEMPTY=" " ;;
13) HPBLOCKS="#############"; HPEMPTY=" " ;;
14) HPBLOCKS="##############"; HPEMPTY=" " ;;
15) HPBLOCKS="###############"; HPEMPTY=" " ;;
16) HPBLOCKS="################"; HPEMPTY=" " ;;
17) HPBLOCKS="#################"; HPEMPTY=" " ;;
18) HPBLOCKS="##################"; HPEMPTY=" " ;;
19) HPBLOCKS="###################"; HPEMPTY=" " ;;
20) HPBLOCKS="####################"; HPEMPTY="" ;;
esac
HPGRAPH="[${HPCOLOR}${HPBLOCKS}${NORMAL}${HPEMPTY}]"
LogText "Hardening index : [${HPINDEX}] [${HPBLOCKS}${HPEMPTY}]"
LogText "Hardening strength: ${HIDESCRIPTION}"
#
#################################################################################
#
# Only show overview if not running in quiet mode
if [ ${QUIET} -eq 0 ]; then
echo ""; echo "================================================================================"
echo ""; echo " -[ ${WHITE}${PROGRAM_NAME} ${PROGRAM_VERSION} Results${NORMAL} ]-"
echo "";
if [ ${SHOW_REPORT} -eq 1 ]; then
LogTextBreak
# Show test results overview
if [ -z "${CONTROL_URL_PROTOCOL}" ]; then CONTROL_URL_PROTOCOL="https"; fi
if [ -z "${CONTROL_URL_PREPEND}" ]; then CONTROL_URL_PREPEND="cisofy.com/lynis/controls/"; fi
if [ -z "${CONTROL_URL_APPEND}" ]; then CONTROL_URL_APPEND="/"; fi
if [ -z "${CUSTOM_URL_PROTOCOL}" ]; then CUSTOM_URL_PROTOCOL="https"; fi
if [ -z "${CUSTOM_URL_PREPEND}" ]; then CUSTOM_URL_PREPEND="your-domain.example.org/controls/"; fi
if [ -z "${CUSTOM_URL_APPEND}" ]; then CUSTOM_URL_APPEND="/"; fi
# Show warnings from logfile
SWARNINGS=$(${GREPBINARY} 'Warning: ' ${LOGFILE} | sed 's/ /!space!/g')
if [ -z "${SWARNINGS}" ]; then
echo " ${OK}Great, no warnings${NORMAL}"; echo ""
else
echo " ${WARNING}Warnings${NORMAL} (${TOTAL_WARNINGS}):"
echo " ${WHITE}----------------------------${NORMAL}"
for WARNING in ${SWARNINGS}; do
SOLUTION=""
SHOWWARNING=$(echo ${WARNING} | sed 's/!space!/ /g' | sed 's/^.* Warning: //' | sed 's/\[details:\(.*\)\] \[solution:\(.*\)\]//' | sed 's/test://')
ADDLINK=$(echo ${WARNING} | sed 's/!space!/ /g' | sed 's/^.* Warning: \(.*\)\[test://' | sed 's/\]\(.*\)]//' | ${AWKBINARY} -F: '{print $1}')
DETAILS=$(echo ${WARNING} | sed 's/!space!/ /g' | sed 's/^.* Warning: \(.*\)\[details://' | sed 's/\]\(.*\)]//')
SUGGESTION_PIECES=$(echo ${WARNING} | sed 's/\[/ [/g')
for PIECE in ${SUGGESTION_PIECES}; do
if [ -z "${SOLUTION}" ]; then
SEARCH=$(echo ${PIECE} | grep "^\[solution:")
if [ $? -eq 0 ]; then SOLUTION=$(echo ${SEARCH} | sed 's/!space!/ /g' | sed 's/solution://' | sed 's/text://' | tr -d '[]'); fi
fi
done
IS_CUSTOM=$(echo ${ADDLINK} | grep "^CUST")
echo " ${RED}!${NORMAL} ${SHOWWARNING}"
if [ ! "${DETAILS}" = "-" -a -n "${DETAILS}" ]; then echo " - Details : ${CYAN}${DETAILS}${NORMAL}"; fi
if [ ${SHOW_REPORT_SOLUTION} -eq 1 -a ! "${SOLUTION}" = "-" ]; then echo " - Solution : ${SOLUTION}"; fi
if [ -z "${IS_CUSTOM}" ]; then
echo " ${CONTROL_URL_PROTOCOL}://${CONTROL_URL_PREPEND}${ADDLINK}${CONTROL_URL_APPEND}"
else
echo " ${CUSTOM_URL_PROTOCOL}://${CUSTOM_URL_PREPEND}${ADDLINK}${CUSTOM_URL_APPEND}"
fi
echo ""
done
fi
# Show suggestions from logfile
SUGGESTIONS=$(${GREPBINARY} 'Suggestion: ' ${LOGFILE} | sed 's/ /!space!/g')
if [ -z "${SUGGESTIONS}" ]; then
echo " ${OK}No suggestions${NORMAL}"; echo ""
else
echo " ${YELLOW}Suggestions${NORMAL} (${TOTAL_SUGGESTIONS}):"
echo " ${WHITE}----------------------------${NORMAL}"
for SUGGESTION in ${SUGGESTIONS}; do
SOLUTION=""
SHOWSUGGESTION=$(echo ${SUGGESTION} | sed 's/!space!/ /g' | sed 's/^.* Suggestion: //' | sed 's/\[details:\(.*\)\] \[solution:\(.*\)\]//' | sed 's/test://')
RELATED_CONTROL=$(echo ${SUGGESTION} | sed 's/!space!/ /g' | sed 's/^.* Suggestion: \(.*\)\[test://' | sed 's/\]\(.*\)]//' | ${AWKBINARY} -F: '{print $1}')
ADDLINK="${RELATED_CONTROL}"
DETAILS=$(echo ${SUGGESTION} | sed 's/!space!/ /g' | sed 's/^.* Suggestion: \(.*\)\[details://' | sed 's/\]\(.*\)]//')
SUGGESTION_PIECES=$(echo ${SUGGESTION} | sed 's/\[/ [/g')
for PIECE in ${SUGGESTION_PIECES}; do
if [ -z "${SOLUTION}" ]; then
SEARCH=$(echo ${PIECE} | grep "^\[solution:")
if [ $? -eq 0 ]; then SOLUTION=$(echo ${SEARCH} | sed 's/!space!/ /g' | sed 's/solution://' | sed 's/text://' | tr -d '[]'); fi
fi
done
IS_CUSTOM=$(echo ${ADDLINK} | grep "^CUST")
echo " ${YELLOW}*${NORMAL} ${SHOWSUGGESTION}"
if [ ! "${DETAILS}" = "-" -a -n "${DETAILS}" ]; then echo " - Details : ${CYAN}${DETAILS}${NORMAL}"; fi
if [ ${SHOW_REPORT_SOLUTION} -eq 1 -a ! "${SOLUTION}" = "-" ]; then echo " - Solution : ${SOLUTION}"; fi
# Show relevant articles if the database is available
if [ -f ${DBDIR}/control-links.db ]; then
echo " - Related resources"
ARTICLES=$($AWKBINARY -F \; -v control=${RELATED_CONTROL} '{if($1==control && $2=="blog"){print $2";"$3";"$4";"}}' "${DBDIR}/control-links.db" | sed 's/ /!space!/g')
if [ -n "${ARTICLES}" ]; then
for ITEM in ${ARTICLES}; do
ITEM=$(echo ${ITEM} | sed 's/!space!/ /g')
ARTICLE=$(echo ${ITEM} | awk -F\; '{print $2}')
ARTICLE_LINK=$(echo ${ITEM} | awk -F\; '{print $3}')
echo " * Article: ${CYAN}${ARTICLE}${NORMAL}: ${ARTICLE_LINK}"
done
fi
fi
if [ -z "${IS_CUSTOM}" ]; then
echo " * Website: ${GRAY}${CONTROL_URL_PROTOCOL}://${CONTROL_URL_PREPEND}${ADDLINK}${CONTROL_URL_APPEND}${NORMAL}"
else
echo " * Details: ${GRAY}${CUSTOM_URL_PROTOCOL}://${CUSTOM_URL_PREPEND}${ADDLINK}${CUSTOM_URL_APPEND}${NORMAL}"
fi
echo ""
done
fi
# Show tip on how to continue (next steps)
if [ ! "${SWARNINGS}" = "" -o ! "${SUGGESTIONS}" = "" ]; then
echo " ${CYAN}Follow-up${NORMAL}:"
echo " ${WHITE}----------------------------${NORMAL}"
echo " ${WHITE}-${NORMAL} Show details of a test (lynis show details TEST-ID)"
echo " ${WHITE}-${NORMAL} Check the logfile for all details (less ${LOGFILE})"
echo " ${WHITE}-${NORMAL} Read security controls texts (https://cisofy.com)"
if [ ${UPLOAD_DATA} -eq 0 ]; then echo " ${WHITE}-${NORMAL} Use --upload to upload data to central system (Lynis Enterprise users)"; fi
echo ""
fi
echo "================================================================================"
echo ""
echo " ${WHITE}Lynis security scan details${NORMAL}:"
echo ""
echo " ${SECTION}Scan mode${NORMAL}:"
if [ ${DEVOPS_MODE} -eq 1 ]; then
echo " Normal [ ] Forensics [ ] Integration [▆] Pentest [ ]"
elif [ ${FORENSICS_MODE} -eq 1 ]; then
echo " Normal [ ] Forensics [▆] Integration [ ] Pentest [ ]"
elif [ ${PENTESTINGMODE} -eq 1 ]; then
if [ ${PRIVILEGED} -eq 0 ]; then
echo " Normal [ ] Forensics [ ] Integration [ ] Pentest [▆] (running non-privileged)"
else
echo " Normal [ ] Forensics [ ] Integration [ ] Pentest [▆] (running privileged)"
fi
else
echo " Normal [▆] Forensics [ ] Integration [ ] Pentest [ ]"
fi
echo ""
echo " ${SECTION}Lynis modules${NORMAL}:"
if [ ${COMPLIANCE_TESTS_PERFORMED} -eq 1 ]; then
if [ ${COMPLIANCE_FINDINGS_FOUND} -eq 0 ]; then COMPLIANCE="${GREEN}V"; else COMPLIANCE="${RED}X"; fi
else
COMPLIANCE="${YELLOW}?"
fi
echo " - Compliance status [${COMPLIANCE}${NORMAL}]"
echo " - Security audit [${GREEN}V${NORMAL}]"
echo " - Vulnerability scan [${GREEN}V${NORMAL}]"
echo ""
echo " ${SECTION}Details${NORMAL}:"
echo " ${CYAN}Hardening index${NORMAL} : ${WHITE}${HPINDEX}${NORMAL} ${HPGRAPH}"
echo " ${CYAN}Tests performed${NORMAL} : ${WHITE}${CTESTS_PERFORMED}${NORMAL}"
if [ ${SKIP_PLUGINS} -eq 0 ]; then
echo " ${CYAN}Plugins enabled${NORMAL} : ${WHITE}${N_PLUGIN_ENABLED}${NORMAL}"
else
echo " ${CYAN}Plugins enabled${NORMAL} : ${WHITE}Skipped${NORMAL}"
fi
echo ""
echo " ${SECTION}Software components${NORMAL}:"
if [ ${FIREWALL_ACTIVE} -eq 1 ]; then FIREWALL="${GREEN}V"; else FIREWALL="${RED}X"; fi
if [ ${MALWARE_SCANNER_INSTALLED} -eq 1 ]; then MALWARE="${GREEN}V"; else MALWARE="${RED}X"; fi
if [ ${IDS_IPS_TOOL_FOUND} -eq 1 ]; then IDSIPS="${GREEN}V"; else IDSIPS="${RED}X"; fi
echo " - Firewall [${FIREWALL}${NORMAL}]"
#echo " - Integrity monitoring [${IDSIPS}${NORMAL}]"
echo " - Intrusion software [${IDSIPS}${NORMAL}]"
echo " - Malware scanner [${MALWARE}${NORMAL}]"
echo ""
echo " ${SECTION}Files${NORMAL}:"
echo " - Test and debug information : ${WHITE}${LOGFILE}${NORMAL}"
echo " - Report data : ${WHITE}${REPORTFILE}${NORMAL}"
echo ""
echo "================================================================================"
if [ ${PROGRAM_LV} -gt ${PROGRAM_AC} ]; then
echo " ${NOTICE}Notice: ${WHITE}${PROGRAM_NAME} ${GEN_UPDATE_AVAILABLE}${NORMAL}"
echo " ${GEN_CURRENT_VERSION} : ${WHITE}${PROGRAM_AC}${NORMAL} ${GEN_LATEST_VERSION} : ${WHITE}${PROGRAM_LV}${NORMAL}"
echo "================================================================================"
else
if [ ${OLD_RELEASE} -eq 1 ]; then
echo ""
echo " ${NOTICE}Notice: ${WHITE}This version of ${PROGRAM_NAME} is older than 6 months and might be outdated. Check the project page if a newer version is available.${NORMAL}"
echo ""
echo "================================================================================"
fi
###########################################################################################
#
# Software quality program
# Only provide this hint when the tool is at the latest version
#
###########################################################################################
if [ ! "${PROGRAM_LV}" = "0" -a ! "${REPORTFILE}" = "" -a ! "${REPORTFILE}" = "/dev/null" ]; then
# Determine if the quality of the program can be increased by filtering out the exceptions
FIND=$(${GREPBINARY} "^exception" ${REPORTFILE})
if [ -n "${FIND}" ]; then
echo ""
echo " ${RED}${NOTE_EXCEPTIONS_FOUND}${NORMAL}"
echo " ${WHITE}${NOTE_EXCEPTIONS_FOUND_DETAILED}!${NORMAL}"
echo ""
echo " ${CYAN}${GEN_WHAT_TO_DO}:${NORMAL}"
echo " ${TEXT_YOU_CAN_HELP_LOGFILE} (${LOGFILE})."
echo " Go to https://cisofy.com/contact/ and send your file to the e-mail address listed"
echo ""
echo "================================================================================"
fi
fi
# If end-of-life check failed, ask to submit
if [ ! "${PROGRAM_LV}" = "0" -a ${EOL} -eq 255 ]; then
echo ""
echo " ${SECTION}Notice: ${WHITE}No OS entry was found in the end-of-life database${NORMAL}"
echo ""
echo " ${CYAN}${GEN_WHAT_TO_DO}:${NORMAL}"
echo " Please submit a pull request on GitHub to include your OS version and the end date of this OS version is being supported"
echo " URL: ${PROGRAM_SOURCE}"
echo ""
echo "================================================================================"
fi
fi
# Display what tests are skipped in non-privileged scan for awareness
if [ ${PENTESTINGMODE} -eq 1 -a ! "${SKIPPED_TESTS_ROOTONLY}" = "" ]; then
echo ""
echo " ${PURPLE}${NOTE_SKIPPED_TESTS_NON_PRIVILEGED}:${NORMAL}"
echo ""
FIND=$(echo ${SKIPPED_TESTS_ROOTONLY} | sed 's/ /:space:/g')
# Split entries
FIND=$(echo ${FIND} | sed 's/====/ /g')
# Display found entries
for ITEM in ${FIND}; do
OUTPUT=$(echo ${ITEM} | sed 's/:space:/ /g')
echo " ${OUTPUT}"
done
echo ""
echo "================================================================================"
fi
echo ""
fi
fi
# Report data, even if it is not displayed on screen
Report "hardening_index=${HPINDEX}"
if [ ${QUIET} -eq 0 ]; then
echo " ${WHITE}${PROGRAM_NAME}${NORMAL} ${PROGRAM_VERSION}"
echo ""
echo " Auditing, system hardening, and compliance for UNIX-based systems"
echo " (Linux, macOS, BSD, and others)"
echo ""
echo " ${PROGRAM_COPYRIGHT}"
echo " ${WHITE}${PROGRAM_EXTRAINFO}${NORMAL}"
echo ""
echo "================================================================================"
fi
# EOF
|
