#!/bin/sh ################################################################################# # # Lynis # ------------------ # # Copyright 2007-2014, Michael Boelen (michael@rootkit.nl), The Netherlands # Web site: http://www.rootkit.nl # # Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are # welcome to redistribute it under the terms of the GNU General Public License. # See LICENSE file for usage of this software. # ################################################################################# # # Ports and packages # ################################################################################# # InsertSection "Ports and packages" PACKAGE_MGR_PKG=0 PKG_AUDIT_TOOL_FOUND=0 # ################################################################################# # Display --indent 2 --text "- Searching package managers..." # Test : PKGS-7301 # Description : Query FreeBSD pkg if [ -x /usr/sbin/pkg ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7301 --preqs-met ${PREQS_MET} --weight L --network NO --description "Query NetBSD pkg" if [ ${SKIPTEST} -eq 0 ]; then FIND=`pkg -N 2>&1; echo $?` if [ "${FIND}" = "0" ]; then Display --indent 4 --text "- Searching packages with pkg..." --result FOUND --color GREEN report "package_manager[]=pkg" PACKAGE_MGR_PKG=1 #logtext "Result: Found pkg" #logtext "Test: Querying pkg to get package list..." #Display --indent 6 --text "- Querying pkg for installed packages..." #logtext "Output:"; logtext "-----" #SPACKAGES=`/usr/sbin/pkg_info 2>&1 | sort | tr -s ' ' | cut -d ' ' -f1 | sed -e 's/^\(.*\)-\([0-9].*\)$/\1,\2/g'` #for J in ${SPACKAGES}; do # sPKG_NAME=`echo ${J} | cut -d ',' -f1` # sPKG_VERSION=`echo ${J} | cut -d ',' -f2` # logtext "Installed package: ${sPKG_NAME} (version: ${sPKG_VERSION})" # report "installed_package[]=${sPKG_NAME}|${sPKG_VERSION}|" #done else Display --indent 4 --text "- Searching pkg..." --result "NOT INSTALLED" --color YELLOW fi fi # ################################################################################# # # Test : PKGS-7302 # Description : Query FreeBSD/NetBSD pkg_info if [ -x /usr/sbin/pkg_info ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7302 --preqs-met ${PREQS_MET} --weight L --network NO --description "Query FreeBSD/NetBSD pkg_info" if [ ${SKIPTEST} -eq 0 ]; then N=0 Display --indent 4 --text "- Checking pkg_info..." --result FOUND --color GREEN logtext "Result: Found pkg_info" report "package_manager[]=pkg_info" logtext "Test: Querying pkg_info to get package list..." Display --indent 6 --text "- Querying pkg_info for installed packages..." logtext "Output:"; logtext "-----" SPACKAGES=`/usr/sbin/pkg_info 2>&1 | sort | tr -s ' ' | cut -d ' ' -f1 | sed -e 's/^\(.*\)-\([0-9].*\)$/\1,\2/g'` for J in ${SPACKAGES}; do N=`expr ${N} + 1` sPKG_NAME=`echo ${J} | cut -d ',' -f1` sPKG_VERSION=`echo ${J} | cut -d ',' -f2` logtext "Installed package: ${sPKG_NAME} (version: ${sPKG_VERSION})" report "installed_package[]=${sPKG_NAME}|${sPKG_VERSION}|" done report "installed_packages=${N}" fi # ################################################################################# # # Temporary disabled due false positives # Packages like docbook, gcc, automake report multiple installed versions # # Test : PKGS-7303 # # Description : Query FreeBSD pkg_info # if [ -x /usr/sbin/pkg_info ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi # Register --test-no PKGS-7303 --preqs-met ${PREQS_MET} --weight L --network NO --description "Query FreeBSD for double installed packages" # if [ ${SKIPTEST} -eq 0 ]; then # SDOUBLEINSTALLED=`pkg_info | sort | sed -e 's/-[0-9].*$//' | uniq -c | grep -v '^[[:space:]]*1' | tr -s ' ' | cut -d ' ' -f3` # if [ "${SDOUBLEINSTALLED}" = "" ]; then # Display --indent 6 --text "- Querying pkg_info for double installed packages..." --result OK --color GREEN # logtext "Ok, no packages show up twice or more in the package listing." # else # Display --indent 6 --text "- Querying pkg_info for double installed packages..." --result WARNING --color RED # for J in ${SDOUBLEINSTALLED}; do # ReportWarning ${TEST_NO} "M" "Found probably incorrect installed package (${J})" # logtext "This package ${J} is visible twice or more in the pkg_info listing." # ReportSuggestion ${TEST_NO} "(FreeBSD) run pkgdb -F and check this manually." # ReportSuggestion ${TEST_NO} "(OpenBSD) check dependencies to see if one of the double " # logtext "installed packages is unneeded." # report "double_installed_package[]=${J}" # done # fi # else # Display --indent 4 --text "- Searching pkg_info..." --result "NOT FOUND" --color WHITE # logtext "Result: pkg_info can NOT be found on this system" # fi # ################################################################################# # # Test : PKGS-7306 # Description : Solaris packages if [ -x /usr/bin/pkginfo ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7306 --os Solaris --preqs-met ${PREQS_MET} --weight L --network NO --description "Querying Solaris packages" if [ ${SKIPTEST} -eq 0 ]; then Display --indent 4 --text "- Searching pkginfo..." --result FOUND --color GREEN logtext "Result: Found Solaris pkginfo" report "package_manager[]=pkginfo" logtext "Test: Querying pkginfo to get package list" Display --indent 4 --text "- Querying pkginfo for installed packages..." logtext "Output:"; logtext "-----" # Strip SUNW from strings SPACKAGES=`/usr/bin/pkginfo -i | tr -s ' ' | cut -d ' ' -f2 | sed "s#^SUNW##"` for J in ${SPACKAGES}; do logtext "Found package ${J}" report "installed_package[]=${J}||" done else logtext "Result: pkginfo can NOT be found on this system" fi # # ################################################################################# # # Test : PKGS-7308 # Description : RPM package based systems if [ ! "${RPMBINARY}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7308 --preqs-met ${PREQS_MET} --weight L --network NO --description "Checking package list with RPM" if [ ${SKIPTEST} -eq 0 ]; then N=0 Display --indent 4 --text "- Searching RPM package manager..." --result FOUND --color GREEN logtext "Result: Found rpm binary (${RPMBINARY})" report "package_manager[]=rpm" logtext "Test: Querying 'rpm -qa' to get package list" Display --indent 6 --text "- Querying RPM package manager..." logtext "Output:"; logtext "--------" SPACKAGES=`${RPMBINARY} -qa | sort` if [ "${SPACKAGES}" = "" ]; then logtext "Result: RPM binary available, but package list seems to be empty" logtext "Info: looks like the rpm binary is installed, but not used for package installation" else for J in ${SPACKAGES}; do N=`expr ${N} + 1` logtext "Found package: ${J}" report "installed_package[]=${J}||" done report "installed_packages=${N}" fi else logtext "Result: RPM binary NOT found on this system, test skipped" fi # ################################################################################# # # Test : PKGS-7310 # Description : pacman package based systems if [ ! "${PACMANBINARY}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7310 --preqs-met ${PREQS_MET} --weight L --network NO --description "Checking package list with pacman" if [ ${SKIPTEST} -eq 0 ]; then N=0 Display --indent 4 --text "- Searching pacman package manager..." --result FOUND --color GREEN logtext "Result: Found pacman binary (${PACMANBINARY})" report "package_manager[]=pacman" logtext "Test: Querying 'pacman -Q' to get package list" Display --indent 6 --text "- Querying pacman package manager..." logtext "Output:"; logtext "--------" SPACKAGES=`${PACMANBINARY} -Q | sort | sed 's/ /,/g'` if [ "${SPACKAGES}" = "" ]; then logtext "Result: pacman binary available, but package list seems to be empty" logtext "Info: looks like the pacman binary is installed, but not used for package installation" #YYY ReportException? else for J in ${SPACKAGES}; do N=`expr ${N} + 1` PACKAGE_NAME=`echo ${J} | awk -F, '{ print $1 }'` PACKAGE_VERSION=`echo ${J} | awk -F, '{ print $2 }'` logtext "Found package: ${PACKAGE_NAME} (version: ${PACKAGE_VERSION})" report "installed_package[]=${PACKAGE_NAME}|${PACKAGE_VERSION}|" done report "installed_packages=${N}" fi else logtext "Result: pacman binary NOT found on this system, test skipped" fi # ################################################################################# # # Test : PKGS-7312 # Description : HP-UX packages # Notes : swlist -l fileset (|grep patch) / print_manifest # ################################################################################# # # Test : PKGS-7316 # Description : AIX patches # Notes : /usr/sbin/instfix -c -i | cut -d":" -f1 # ################################################################################# # # Test : PKGS-7328 # Description : Check installed packages with Zypper if [ ! "${ZYPPERBINARY}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7328 --preqs-met ${PREQS_MET} --weight L --network NO --description "Querying Zypper for installed packages" if [ ${SKIPTEST} -eq 0 ]; then N=0 FIND=`${ZYPPERBINARY} se -i | awk '{ if ($1=="i") { print $3 } }'` if [ ! "${FIND}" = "" ]; then for I in ${FIND}; do N=`expr ${N} + 1` logtext "Installed package: ${I}" report "installed_package[]=${I}|-|" done report "installed_packages=${N}" else # Could not find any installed packages ReportException ${TEST_NO} "No installed packages found with Zypper" fi fi # ################################################################################# # # Test : PKGS-7330 # Description : Check vulnerable packages with Zypper if [ ! "${ZYPPERBINARY}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7330 --preqs-met ${PREQS_MET} --weight L --network NO --description "Querying Zypper for vulnerable packages" if [ ${SKIPTEST} -eq 0 ]; then FIND=`${ZYPPERBINARY} lp | ${AWKBINARY} '{ if ($7=="security") { if ($11=="update") { print $13 } else { print $11 } } }' | sed 's/:$//' | grep -v "^$" | sort | uniq` if [ "${FIND}" = "" ]; then logtext "Result: No security updates found with Zypper" Display --indent 2 --text "- Using Zypper to obtain vulnerabile packages" --result NONE --color GREEN else Display --indent 2 --text "- Using Zypper to obtain vulnerabilities" --result WARNING --color RED logtext "Result: Zypper found one or more installed packages which are vulnerable." ReportWarning ${TEST_NO} "H" "Found one or more vulnerable packages installed" logtext "List of vulnerable packages/version:" for I in ${FIND}; do report "vulnerable_package[]=${I}" logtext "Vulnerable package: ${I}" # Decrease hardening points for every found vulnerable package AddHP 1 2 done fi fi # ################################################################################# # # Test : PKGS-7345 # Description : Debian package based systems (dpkg) if [ -x /usr/bin/dpkg ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7345 --preqs-met ${PREQS_MET} --weight L --network NO --description "Querying dpkg" if [ ${SKIPTEST} -eq 0 ]; then N=0 Display --indent 4 --text "- Searching dpkg package manager" --result FOUND --color GREEN logtext "Result: Found dpkg binary" report "package_manager[]=dpkg" logtext "Test: Querying dpkg -l to get package list" Display --indent 6 --text "- Querying package manager..." logtext "Output:" SPACKAGES=`dpkg -l 2>/dev/null | grep "^ii" | tr -s ' ' | tr ' ' '#' | sort` for J in ${SPACKAGES}; do N=`expr ${N} + 1` PACKAGE_NAME=`echo ${J} | cut -d '#' -f2` PACKAGE_VERSION=`echo ${J} | cut -d '#' -f3` logtext "Found package: ${PACKAGE_NAME} (version: ${PACKAGE_VERSION})" report "installed_package[]=${PACKAGE_NAME}|${PACKAGE_VERSION}|" done report "installed_packages=${N}" else logtext "Result: dpkg can NOT be found on this system, test skipped" fi # ################################################################################# # # Test : PKGS-7346 # Description : Check packages which are removed, but still own configuration files, cron jobs etc # Notes : Cleanup: for pkg in `dpkg -l | grep "^rc" | cut -d' ' -f3`; do aptitude purge ${pkg}; done if [ -x /usr/bin/dpkg ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7346 --preqs-met ${PREQS_MET} --weight L --network NO --description "Search unpurged packages on system" if [ ${SKIPTEST} -eq 0 ]; then N=0 logtext "Test: Querying dpkg -l to get unpurged packages" SPACKAGES=`dpkg -l 2>/dev/null | grep "^rc" | cut -d ' ' -f3 | sort` if [ "${SPACKAGES}" = "" ]; then Display --indent 4 --text "- Query unpurged packages" --result NONE --color GREEN logtext "Result: no packages found with left overs" else Display --indent 4 --text "- Query unpurged packages" --result FOUND --color YELLOW logtext "Result: found one or more packages with left over configuration files, cron jobs etc" logtext "Output:" for J in ${SPACKAGES}; do N=`expr ${N} + 1` logtext "Found unpurged package: ${J}" done ReportSuggestion ${TEST_NO} "Purge old/removed packages (${N} found) with aptitude purge or dpkg --purge command. This will cleanup old configuration files, cron jobs and startup scripts." fi else logtext "Result: dpkg can NOT be found on this system, test skipped" fi # ################################################################################# # Test : PKGS-7348 # Description : Show unneeded distfiles if present # Notes : Portsclean seems to be gone from the ports, so no suggestion or warning is # issued when it's missing. # Add portmaster --clean-distfiles-all Register --test-no PKGS-7348 --os FreeBSD --weight L --network NO --description "Check for old distfiles" if [ ${SKIPTEST} -eq 0 ]; then if [ -x /usr/local/sbin/portsclean ]; then FIND=`/usr/local/sbin/portsclean -n -DD | grep 'Delete' | wc -l | tr -d ' '` if [ ${FIND} -eq 0 ]; then Display --indent 2 --text "- Checking presence old distfiles" --result OK --color GREEN logtext "Result: no unused distfiles found" else Display --indent 2 --text "- Checking presence old distfiles" --result WARNING --color YELLOW logtext "Result: found ${FIND} unused distfiles" ReportSuggestion ${TEST_NO} "Unused distfiles found. Use portsclean to delete these files. For example: portsclean -DD." fi fi fi # ################################################################################# # # Test : PKGS-7378 # Description : Query FreeBSD portmaster for available port upgrades if [ -x /usr/local/sbin/portmaster ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7378 --preqs-met ${PREQS_MET} --weight L --network NO --description "Query portmaster for port upgrades" if [ ${SKIPTEST} -eq 0 ]; then N=0 logtext "Test: Querying portmaster for possible port upgrades" UPACKAGES=`/usr/local/sbin/portmaster -L | grep "version available" | awk '{ print $5 }'` for J in ${UPACKAGES}; do N=`expr ${N} + 1` logtext "Upgrade available (new version): ${J}" report "upgrade_available[]=${J}" done report "upgrade_available_count=${N}" if [ ${N} -eq 0 ]; then logtext "Result: no upgrades found" Display --indent 2 --text "- Checking portmaster for updates" --result NONE --color GREEN else Display --indent 2 --text "- Checking portmaster for updates" --result FOUND --color YELLOW fi fi # ################################################################################# # # Test : PKGS-7380 # Description : Check for vulnerable NetBSD packages (with pkg_admin) Register --test-no PKGS-7381 --os NetBSD --weight L --network NO --description "Check for vulnerable NetBSD packages" if [ ${SKIPTEST} -eq 0 ]; then if [ -x /usr/sbin/pkg_admin ]; then FIND=`/usr/sbin/pkg_admin audit` PKG_AUDIT_TOOL_FOUND=1 PKG_AUDIT_TOOL="pkg_admin audit" if [ "${FIND}" = "" ]; then logtext "Result: pkg audit results are clean" Display --indent 2 --text "- Checking pkg_admin audit to obtain vulnerable packages" --result NONE --color GREEN AddHP 2 2 else Display --indent 2 --text "- Checking pkg_admin audit to obtain vulnerable packages" --result WARNING --color RED logtext "Result: pkg_admin audit found one or more installed packages which are vulnerable." ReportWarning ${TEST_NO} "M" "Found one or more vulnerable packages." logtext "List of vulnerable packages/version:" for I in `/usr/sbin/pkg_admin audit | awk '{ print $2 }' | sort | uniq`; do report "vulnerable_package[]=${I}" logtext "Vulnerable package: ${I}" # Decrease hardening points for every found vulnerable package AddHP 1 2 done fi else Display --indent 2 --text "- pkg_admin audit not installed" --result "NOT FOUND" --color WHITE logtext "Result: pkg_admin audit not installed, skipping this vulnerability test." fi fi # ################################################################################# # # Test : PKGS-7381 # Description : Check for vulnerable FreeBSD packages (with pkg) Register --test-no PKGS-7381 --os FreeBSD --weight L --network NO --description "Check for vulnerable FreeBSD packages" if [ ${SKIPTEST} -eq 0 ]; then if [ -x /usr/sbin/pkg ]; then FIND=`/usr/sbin/pkg audit | grep 'problem(s) in your installed packages found' | grep -v '0 problem(s) in your installed packages found'` PKG_AUDIT_TOOL_FOUND=1 PKG_AUDIT_TOOL="pkg audit" if [ "${FIND}" = "" ]; then logtext "Result: pkg audit results are clean" Display --indent 2 --text "- Checking pkg audit to obtain vulnerable packages" --result NONE --color GREEN # Don't check yet, output of found vulnerable packages unclear (YYY) else logtext "Result: ${FIND}" #Display --indent 2 --text "- Checking pkg audit to obtain vulnerable packages..." --result WARNING --color RED #logtext "Result: pkg audit found one or more installed packages which are vulnerable." #ReportWarning ${TEST_NO} "M" "Found one or more vulnerable packages." #ReportSuggestion ${TEST_NO} "Update your system with portupgrade or other tools" #logtext "List of vulnerable packages/version:" #for I in `/usr/sbin/pkg audit -F | grep "Affected package" | cut -d ' ' -f3 | sort | uniq`; do # report "vulnerable_package[]=${I}" # logtext "Vulnerable package: ${I}" # # Decrease hardening points for every found vulnerable package # AddHP 1 2 #done fi else Display --indent 2 --text "- pkg audit not installed" --result "NOT FOUND" --color WHITE logtext "Result: pkg audit not installed, skipping this vulnerability test." fi fi # ################################################################################# # # Test : PKGS-7382 # Description : Check for vulnerable FreeBSD packages Register --test-no PKGS-7382 --os FreeBSD --weight L --network NO --description "Check for vulnerable FreeBSD packages" if [ ${SKIPTEST} -eq 0 ]; then if [ -x /usr/local/sbin/portaudit ]; then PKG_AUDIT_TOOL_FOUND=1 FIND=`/usr/local/sbin/portaudit | grep 'problem(s) in your installed packages found' | grep -v '0 problem(s) in your installed packages found'` if [ "${FIND}" = "" ]; then logtext "Result: Portaudit results are clean" Display --indent 2 --text "- Checking portaudit to obtain vulnerabile packages" --result NONE --color GREEN else Display --indent 2 --text "- Checking portaudit to obtain vulnerabilities" --result WARNING --color RED logtext "Result: Portaudit found one or more installed packages which are vulnerable." ReportWarning ${TEST_NO} "M" "Found one or more vulnerable packages." ReportSuggestion ${TEST_NO} "Update your system with portupgrade or other tools" logtext "List of vulnerable packages/version:" for I in `/usr/local/sbin/portaudit | grep "Affected package" | cut -d ' ' -f3 | sort | uniq`; do report "vulnerable_package[]=${I}" logtext "Vulnerable package: ${I}" # Decrease hardening points for every found vulnerable package AddHP 1 2 done fi else # Don't advice portaudit anymore, as pkg audit is the replacement (pkgng) logtext "Result: Portaudit not installed, can't perform vulnerability test." fi fi # ################################################################################# # # Test : PKGS-7383 # Description : Check for YUM package Update management if [ ! "${YUMBINARY}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7383 --preqs-met ${PREQS_MET} --os Linux --weight M --network NO --description "Check for YUM package Update management" if [ ${SKIPTEST} -eq 0 ]; then logtext "Test: YUM package update management" sFIND=`${YUMBINARY} repolist 2>/dev/null | grep repolist | sed 's/ //g' | sed 's/[,.]//g' | awk -F ":" '{print $2}'` if [ "$(echo ${sFIND} | egrep "^[0-9]+$")" -a "${sFIND}" = "0" ]; then logtext "Result: YUM package update management failed" Display --indent 2 --text "- Checking YUM package management consistency" --result WARNING --color RED ReportWarning ${TEST_NO} "M" "YUM is not properly configured or registered for this platform (no repolist found)" #ReportSuggestion ${TEST_NO} "Check YUM registration for repository configuration (repolist)" else logtext "Result: YUM repository available (${sFIND})" Display --indent 2 --text "- Checking YUM package management consistency" --result OK --color GREEN fi fi # ################################################################################# # # Test : PKGS-7384 # Description : Search for YUM utils package if [ ! "${YUMBINARY}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7384 --preqs-met ${PREQS_MET} --os Linux --weight L --network NO --description "Check for YUM utils package" if [ ${SKIPTEST} -eq 0 ]; then if [ -x /usr/bin/package-cleanup ]; then logtext "Result: found YUM utils package (/usr/bin/package-cleanup)" # Check for duplicates logtext "Test: Checking for duplicate packages" FIND=`/usr/bin/package-cleanup -q --dupes > /dev/null; echo $?` if [ "${FIND}" = "0" ]; then logtext "Result: No duplicate packages found" Display --indent 2 --text "- Checking package database duplicates" --result OK --color GREEN else logtext "Result: One or more duplicate packages found" Display --indent 2 --text "- Checking package database duplicates" --result WARNING --color RED ReportWarning ${TEST_NO} "L" "Found one or more duplicate packages installed" ReportSuggestion ${TEST_NO} "Run package-cleanup to solve duplicate package problems" fi # Check for package database problems logtext "Test: Checking for database problems" FIND=`/usr/bin/package-cleanup --problems > /dev/null; echo $?` if [ "${FIND}" = "0" ]; then logtext "Result: No package database problems found" Display --indent 2 --text "- Checking package database for problems" --result OK --color GREEN else logtext "Result: One or more problems found in package database" Display --indent 2 --text "- Checking package database for problems" --result WARNING --color RED ReportWarning ${TEST_NO} "L" "Found one or more problems in the package database" ReportSuggestion ${TEST_NO} "Run package-cleanup to solve package problems" fi else Display --indent 2 --text "- yum-utils package not installed" --result SUGGESTION --color YELLOW logtext "Result: YUM utils package not found" ReportSuggestion ${TEST_NO} "Install package 'yum-utils' for better consistency checking of the package database" fi fi # ################################################################################# # # Test : PKGS-7386 # Description : Search for YUM security package # Notes : This test does not apply to CentOS and clones, as --security is not available if [ -x /usr/bin/yum ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7386 --preqs-met ${PREQS_MET} --os Linux --weight L --network NO --description "Check for YUM security package" if [ ${SKIPTEST} -eq 0 ]; then DO_TEST=0 logtext "Test: Determining if yum-security package installed" FileExists /etc/yum/pluginconf.d/security.conf if [ ${FILE_FOUND} -eq 1 ]; then SearchItem "^enabled=1$" "/etc/yum/pluginconf.d/security.conf" if [ ${ITEM_FOUND} -eq 1 ]; then DO_TEST=1 fi else # Check if it's installed as package (this is old style) FIND=`rpm -q yum-security yum-plugin-security | grep -v "not installed"` if [ ! "${FIND}" = "" ]; then logtext "Result: found yum-plugin-security package" DO_TEST=1 fi fi # If we have the module of yum active, continue. if [ ${DO_TEST} -eq 1 ]; then PKG_AUDIT_TOOL_FOUND=1 PKG_AUDIT_TOOL="yum-security" logtext "Test: Checking for vulnerable packages" FIND2=`/usr/bin/yum list-sec security | awk '{ if($2=="security") print $3","$5 }'` if [ "${FIND2}" = "" ]; then logtext "Result: no vulnerable packages found" Display --indent 2 --text "- Checking missing security packages" --result OK --color GREEN else logtext "Result: found vulnerable package(s)" Display --indent 2 --text "- Checking missing security packages" --result WARNING --color RED for I in ${FIND2}; do report "vulnerable_package[]=${I}" logtext "Vulnerable package: ${I}" AddHP 1 2 done ReportWarning ${TEST_NO} "M" "Found one or more vulnerable packages." ReportSuggestion ${TEST_NO} "Use 'yum --security update' to update your system" fi else logtext "Result: yum-security package not found" Display --indent 2 --text "- Checking missing security packages" --result SKIPPED --color YELLOW ReportSuggestion ${TEST_NO} "Install package yum-plugin-security if possible, to maintain security updates easier (yum install yum-plugin-security)" fi fi # ################################################################################# # # Test : PKGS-7387 # Description : Search for YUM GPG check if [ -x /usr/bin/yum ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7387 --preqs-met ${PREQS_MET} --os Linux --weight L --network NO --description "Check for GPG signing in YUM security package" if [ ${SKIPTEST} -eq 0 ]; then FOUND=0 FileExists /etc/yum.conf if [ ${FILE_FOUND} -eq 1 ]; then SearchItem "^gpgenabled=1$" "/etc/yum.conf"; if [ ${ITEM_FOUND} -eq 1 ]; then FOUND=1; fi SearchItem "^gpgcheck=1$" "/etc/yum.conf"; if [ ${ITEM_FOUND} -eq 1 ]; then FOUND=1; fi if [ ${FOUND} -eq 1 ]; then logtext "Result: GPG check is enabled" Display --indent 2 --text "- Checking GPG checks (yum.conf)" --result OK --color GREEN else Display --indent 2 --text "- Checking GPG checks (yum.conf)" --result DISABLED --color RED ReportWarning ${TEST_NO} "M" "No GPG signing option found in yum.conf" fi fi fi # ################################################################################# # # Test : PKGS-7388 # Description : Check security repository in Debian/ubuntu apt sources.list file Register --test-no PKGS-7388 --os Linux --weight L --network NO --description "Check security repository in Debian/ubuntu apt sources.list file" if [ $SKIPTEST -eq 0 ]; then FOUND=0 if [ -f /etc/apt/sources.list -o -d /etc/apt/sources.list.d ]; then if [ ! "${OPTION_DEBIAN_SKIP_SECURITY_REPOSITORY}" = "yes" ]; then if [ -f /etc/apt/sources.list ]; then logtext "Searching for security.debian.org/security.ubuntu.com or security repositories in /etc/apt/sources.list file" FIND=`egrep "security.debian.org|security.ubuntu.com|-security " /etc/apt/sources.list | grep -v '#' | sed 's/ /!space!/g'` if [ ! "${FIND}" = "" ]; then FOUND=1 Display --indent 2 --text "- Checking security repository in sources.list file" --result OK --color GREEN logtext "Result: Found security repository in /etc/apt/sources.list" for I in ${FIND}; do I=`echo ${I} | sed 's/!space!/ /g'` logtext "Output: ${I}" done fi fi if [ -d /etc/apt/sources.list.d ]; then logtext "Searching for security.debian.org/security.ubuntu.com or security repositories in /etc/apt/sources.list.d directory" FIND=`egrep "security.debian.org|security.ubuntu.com|-security " /etc/apt/sources.list.d/* | grep -v '#' | sed 's/ /!space!/g'` if [ ! "${FIND}" = "" ]; then FOUND=1 Display --indent 2 --text "- Checking security repository in sources.list.d directory" --result OK --color GREEN logtext "Result: Found security repository in one or more files in directory /etc/apt/sources.list.d" for I in ${FIND}; do I=`echo ${I} | sed 's/!space!/ /g'` logtext "Output: ${I}" done fi fi if [ ${FOUND} -eq 1 ]; then logtext "Result: security repository was found" AddHP 3 3 else Display --indent 2 --text "- Checking security repository in sources.list file or directory" --result WARNING --color RED ReportWarning ${TEST_NO} "M" "Can't find any security repository in /etc/apt/sources.list or sources.list.d directory" AddHP 0 3 fi else logtext "Skipped as option is set to ignore security repository" fi else logtext "Result: skipping test as sources.list or sources.list.d is not found" fi fi # ################################################################################# # # Test : PKGS-7390 # Description : Check Ubuntu database consistency if [ "${LINUX_VERSION}" = "Ubuntu" -a -x /usr/bin/apt-get ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7390 --os Linux --preqs-met ${PREQS_MET} --weight L --network NO --description "Check Ubuntu database consistency" if [ ${SKIPTEST} -eq 0 ]; then logtext "Test: Package database consistency by running apt-get check" FIND=`/usr/bin/apt-get -q=2 check 2> /dev/null; echo $?` if [ "${FIND}" = "0" ]; then Display --indent 2 --text "- Checking APT package database..." --result OK --color GREEN logtext "Result: package database seems to be consistent." else logtext "Result: package database is most likely NOT consistent" Display --indent 2 --text "- Checking APT package database..." --result WARNING --color RED ReportWarning ${TEST_NO} "M" "apt-get check returned a non successful exit code." ReportSuggestion ${TEST_NO} "Run apt-get to perform a manual package database consistency check." fi fi # ################################################################################# # # Test : PKGS-7392 # Description : Check Debian/Ubuntu vulnerable packages if [ -x /usr/bin/apt-get ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7392 --os Linux --preqs-met ${PREQS_MET} --weight L --network YES --description "Check for Debian/Ubuntu security updates" if [ ${SKIPTEST} -eq 0 ]; then VULNERABLE_PACKAGES_FOUND=0 SCAN_PERFORMED=0 # Update the repository, outdated repositories don't give much information logtext "Action: updating repository with apt-get" /usr/bin/apt-get -q=2 update logtext "Result: apt-get finished" logtext "Action: Checking if /usr/lib/update-notifier/apt-check exists" if [ -x /usr/lib/update-notifier/apt-check ]; then PKG_AUDIT_TOOL_FOUND=1 PKG_AUDIT_TOOL="apt-check" logtext "Result: found /usr/lib/update-notifier/apt-check" logtext "Action: checking if any of the updates contain security updates" # apt-check binary is a script and translated. Do not search for normal text strings, but use numbered output only FIND=`/usr/lib/update-notifier/apt-check 2>&1 | awk -F\; '{ print $2 }'` # Check if we get the proper line back and amount of security patches available if [ "${FIND}" = "" ]; then logtext "Result: did not find security updates line" ReportSuggestion ${TEST_NO} "Check if system is up-to-date, security updates test (apt-check) gives an unexpected result" ReportException "${TEST_NO}:1" "Apt-check did not provide any result" else if [ "${FIND}" = "0" ]; then logtext "Result: no vulnerable packages found via apt-check" SCAN_PERFORMED=1 else VULNERABLE_PACKAGES_FOUND=1 SCAN_PERFORMED=1 logtext "Result: found ${FIND} security updates via apt-check" AddHP 0 25 fi fi else logtext "Result: apt-check (update-notifier-common) not found" fi # Trying also with apt-get directly (does not always work, as updates are distributed on both -security and -updates) # Show packages which would be upgraded and match 'security' in repository name FIND=`/usr/bin/apt-get --dry-run --show-upgraded upgrade 2> /dev/null | grep '-security' | grep "^Inst" | cut -d ' ' -f2 | sort | uniq` if [ ! "${FIND}" = "" ]; then #Display --indent 2 --text "- Checking vulnerable packages..." --result WARNING --color RED VULNERABLE_PACKAGES_FOUND=1 SCAN_PERFORMED=1 logtext "Result: found vulnerable package(s) via apt-get (-security channel)" PKG_AUDIT_TOOL="apt-get" PKG_AUDIT_TOOL_FOUND=1 for I in ${FIND}; do logtext "Found vulnerable package: ${I}" report "vulnerable_package[]=${I}" done fi if [ ${SCAN_PERFORMED} -eq 1 ]; then if [ ${VULNERABLE_PACKAGES_FOUND} -eq 1 ]; then ReportWarning ${TEST_NO} "M" "Found one or more vulnerable packages." ReportSuggestion ${TEST_NO} "Update your system with apt-get update, apt-get upgrade, apt-get dist-upgrade and/or unattended-upgrades" Display --indent 2 --text "- Checking vulnerable packages..." --result WARNING --color RED else Display --indent 2 --text "- Checking vulnerable packages..." --result OK --color GREEN logtext "Result: no vulnerable packages found" fi else Display --indent 2 --text "- Checking vulnerable packages (apt-get only)..." --result DONE --color GREEN logtext "Result: test not fully executed (missing apt-check output)" fi fi # ################################################################################# # # Test : PKGS-7394 # Description : Check Ubuntu upgradeable packages if [ "${LINUX_VERSION}" = "Ubuntu" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no PKGS-7394 --os Linux --preqs-met ${PREQS_MET} --weight L --network YES --description "Check for Ubuntu updates" if [ ${SKIPTEST} -eq 0 ]; then logtext "Test: checking /usr/bin/apt-show-versions" if [ -x /usr/bin/apt-show-versions ]; then logtext "Result: found /usr/bin/apt-show-versions" logtext "Test: Checking packages which can be upgraded via apt-show-versions" FIND=`/usr/bin/apt-show-versions -u | sed 's/ /!space!/g'` if [ "${FIND}" = "" ]; then logtext "Result: no packages found which can be upgraded" Display --indent 2 --text "- Checking upgradeable packages..." --result NONE --color GREEN AddHP 3 3 else logtext "Result: found one or more packages which can be upgraded" Display --indent 2 --text "- Checking upgradeable packages..." --result FOUND --color YELLOW # output: program/repository upgradeable from version X to Y for I in ${FIND}; do I=`echo ${I} | sed 's/!space!/ /g'` logtext "${I}" done fi else logtext "Result: /usr/bin/apt-show-versions not found" Display --indent 2 --text "- Checking upgradeable packages..." --result SKIPPED --color WHITE ReportSuggestion ${TEST_NO} "Install package apt-show-versions for patch management purposes" fi fi # ################################################################################# # # Test : PKGS-7398 # Description : Check package audit tool Register --test-no PKGS-7398 --weight L --network YES --description "Check for package audit tool" if [ ${SKIPTEST} -eq 0 ]; then logtext "Test: checking for package audit tool" if [ ${PKG_AUDIT_TOOL_FOUND} -eq 0 ]; then Display --indent 2 --text "- Checking package audit tool..." --result NONE --color RED ReportSuggestion ${TEST_NO} "Install a package audit tool to determine vulnerable packages" logtext "Result: no package audit tool found" else Display --indent 2 --text "- Checking package audit tool..." --result INSTALLED --color GREEN Display --indent 4 --text "Found: ${PKG_AUDIT_TOOL}" logtext "Result: found package audit tool: ${PKG_AUDIT_TOOL}" fi fi # ################################################################################# # # check for popularity-contest (Debian/Ubuntu) # check for yum-changelog report "pkg_audit_tool=${PKG_AUDIT_TOOL}" report "pkg_audit_tool_found=${PKG_AUDIT_TOOL_FOUND}" wait_for_keypress # #================================================================================ # Lynis - Copyright 2007-2014, Michael Boelen - www.rootkit.nl - The Netherlands