#!/bin/sh ################################################################################# # # Lynis # ------------------ # # Copyright 2007-2013, Michael Boelen # Copyright 2013-2016, 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. # ################################################################################# # # User, Group and authentication tests # ################################################################################# # LDAP_AUTH_ENABLED=0 LDAP_PAM_ENABLED=0 LDAP_CONF_LOCATIONS="/etc/ldap.conf /etc/ldap/ldap.conf /etc/openldap/ldap.conf /usr/local/etc/ldap.conf /usr/local/etc/openldap/ldap.conf" PAM_FILE_LOCATIONS="/lib/i386-linux-gnu/security /lib/security /lib/x86_64-linux-gnu/security /lib64/security /usr/lib /usr/lib/security" SUDOERS_LOCATIONS="/etc/sudoers /usr/local/etc/sudoers /usr/pkg/etc/sudoers" SUDOERS_FILE="" # ################################################################################# # InsertSection "Users, Groups and Authentication" # Test : AUTH-9204 # Description : Check users with UID zero (0) # Notes : Ignores :0: in file if match is in NIS related line Register --test-no AUTH-9204 --weight L --network NO --description "Check users with an UID of zero" if [ ${SKIPTEST} -eq 0 ]; then # Search accounts with UID 0 LogText "Test: Searching accounts with UID 0" FIND=`grep ':0:' /etc/passwd | egrep -v '^#|^root:|^(\+:\*)?:0:0:::' | cut -d ":" -f1,3 | grep ':0'` if [ ! "${FIND}" = "" ]; then Display --indent 2 --text "- Search administrator accounts" --result "${STATUS_WARNING}" --color RED LogText "Result: Found more than one administrator accounts" ReportWarning "${TEST_NO}" "H" "Multiple users with UID 0 found in passwd file" for I in ${FIND}; do LogText "Administrator account: ${I}" if [ "${I}" = "toor" ]; then LogText "BSD note: default there is a user 'toor' installed. This account is considered useless unless it" LogText "is assigned a password and used for daily operations or emergencies. ie: bad shell for root user." ReportSuggestion ${TEST_NO} "Use vipw to delete the 'toor' user if not used." fi done else Display --indent 2 --text "- Search administrator accounts" --result "${STATUS_OK}" --color GREEN LogText "Result: No accounts found with UID 0 other than root." fi fi # ################################################################################# # # Test : AUTH-9208 # Description : Check non-unique accounts Register --test-no AUTH-9208 --weight L --network NO --description "Check non-unique accounts in passwd file" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking for non-unique accounts" if [ "${OS}" = "DragonFly" -o "${OS}" = "FreeBSD" -o "${OS}" = "NetBSD" -o "${OS}" = "OpenBSD" ]; then PASSWD_FILE="/etc/master.passwd" else PASSWD_FILE="/etc/passwd" fi # Check password file if [ -f ${PASSWD_FILE} ]; then FIND=`grep -v '^#' ${PASSWD_FILE} | cut -d ':' -f3 | sort | uniq -d` if [ "${FIND}" = "" ]; then Display --indent 2 --text "- Checking for non-unique UIDs" --result "${STATUS_OK}" --color GREEN LogText "Result: all accounts found in ${PASSWD_FILE} are unique" else Display --indent 2 --text "- Checking for non-unique UIDs" --result "${STATUS_WARNING}" --color RED LogText "Result: found multiple accounts with same UID" LogText "Output (non-unique UIDs): ${FIND}" ReportWarning ${TEST_NO} "Multiple accounts found with same UID" fi else Display --indent 2 --text "- Checking UIDs" --result "${STATUS_SKIPPED}" --color WHITE LogText "Result: test skipped, ${PASSWD_FILE} file not available" fi LogText "Remarks: Non unique UIDs can riskful for the system or part of a configuration mistake" fi # ################################################################################# # # Test : AUTH-9212 # Description : Test group file with chkgrp tool (ie FreeBSD) if [ -f /usr/sbin/chkgrp ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9212 --preqs-met ${PREQS_MET} --weight L --network NO --description "Test group file" if [ ${SKIPTEST} -eq 0 ]; then Display --indent 2 --text "- Checking chkgrp tool" --result "${STATUS_FOUND}" --color GREEN LogText "Result: /usr/sbin/chkgrp binary found. Using this to perform next test(s)." LogText "Test: Testing consistency of /etc/group file" FIND=`/usr/sbin/chkgrp | grep -v 'is fine'` if [ "${FIND}" = "" ]; then Display --indent 4 --text "- Checking consistency of /etc/group file" --result "${STATUS_OK}" --color GREEN LogText "Result: chkgrp test performed, Group file seems to be ok." else Display --indent 4 --text "- Checking consistency of /etc/group file" --result "${STATUS_WARNING}" --color RED LogText "Result: chkgrp found some errors. Run the tool manually to see details." LogText "chkgrp output: ${FIND}" ReportWarning ${TEST_NO} "M" "chkgrp reported inconsistencies in /etc/group file" fi fi # ################################################################################# # # Test : AUTH-9216 # Description : Check /etc/group and shadow group files if [ ! "${GRPCKBINARY}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9216 --preqs-met ${PREQS_MET} --weight L --network NO --root-only YES --description "Check group and shadow group files" if [ ${SKIPTEST} -eq 0 ]; then # Test : run grpck to test group files (most likely /etc/group and shadow group files) # Expected result : 0 (exit code) LogText "Test: Checking for grpck binary" if [ "${OS}" = "Linux" ]; then # Read only mode FIND=`${GRPCKBINARY} -r 2> /dev/null ; echo $?` elif [ "${OS}" = "AIX" ]; then FIND=`${GRPCKBINARY} -n ALL 2> /dev/null ; echo $?` else FIND=`${GRPCKBINARY} 2> /dev/null ; echo $?` fi # Overrule for SuSE if [ "${LINUX_VERSION}" = "SuSE" ]; then FIND=`${GRPCKBINARY} -q -r > /dev/null ; echo $?` fi # Check exit-code if [ "${FIND}" = "0" ]; then Display --indent 2 --text "- Checking consistency of group files (grpck)" --result "${STATUS_OK}" --color GREEN LogText "Result: grpck binary didn't find any errors in the group files" else Display --indent 2 --text "- Checking consistency of group files (grpck)" --result "${STATUS_WARNING}" --color RED ReportWarning ${TEST_NO} "M" "grpck binary found errors in one or more group files" ReportSuggestion ${TEST_NO} "Run grpck manually and check your group files" fi fi # ################################################################################# # # Test : AUTH-9218 # Description : Check login shells for passwordless accounts # Notes : Results should be checked Register --test-no AUTH-9218 --os FreeBSD --weight L --network NO --description "Check harmful login shells" if [ ${SKIPTEST} -eq 0 ]; then FOUND=0 LogText "Test: Checking login shells" if [ -f /etc/master.passwd ]; then # Check for all shells, except: (/usr)/sbin/nologin /nonexistent FIND=`grep "[a-z]:\*:" /etc/master.passwd | egrep -v '^#|/sbin/nologin|/usr/sbin/nologin|/nonexistent' | sed 's/ /!space!/g'` if [ "${FIND}" = "" ]; then Display --indent 2 --text "- Checking login shells" --result "${STATUS_OK}" --color GREEN else Display --indent 2 --text "- Checking login shells" --result "${STATUS_WARNING}" --color RED for I in ${FIND}; do I=`echo ${I} | sed 's/!space!/ /g'` J=`echo ${I} | awk -F: '{ print $10 }'` LogText "Output: ${I}" if [ "${J}" = "" ]; then LogText "Result: found no shell on line" else LogText "Result: found possible harmful shell ${J}" if [ -f ${J} ]; then LogText "Result: shell ${J} does exist" FOUND=1 else LogText "Result: shell ${J} does not exist" ReportSuggestion ${TEST_NO} "Determine if account is needed, as shell ${J} does not exist" fi fi done if [ ${FOUND} -eq 1 ]; then ReportWarning ${TEST_NO} "H" "Possible harmful shell found (for passwordless account!)" fi fi else Display --indent 2 --text "- Checking login shells" --result "${STATUS_SKIPPED}" --color WHITE LogText "Result: No /etc/master.passwd file found" fi fi # ################################################################################# # # Test : AUTH-9222 # Description : Check for non unique groups Register --test-no AUTH-9222 --weight L --network NO --description "Check for non unique groups" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking for non unique group ID's in /etc/group" FIND=`grep -v '^#' /etc/group | grep -v '^$' | awk -F: '{ print $3 }' | sort | uniq -d` if [ "${FIND}" = "" ]; then Display --indent 2 --text "- Checking non unique group ID's" --result "${STATUS_OK}" --color GREEN LogText "Result: All group ID's are unique" else Display --indent 2 --text "- Checking non unique group ID's" --result "${STATUS_WARNING}" --color RED LogText "Result: Found the same group ID multiple times" LogText "Output: ${FIND}" ReportWarning ${TEST_NO} "H" "Found multiple groups with same group ID" #ReportSuggestion ${TEST_NO} "Check your /etc/group file and correct inconsistencies" fi fi # ################################################################################# # # Test : AUTH-9226 # Description : Check non unique group names if [ -f /etc/group ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9226 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check non unique group names" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking for non unique group names in /etc/group" FIND=`grep -v '^#' /etc/group | grep -v '^$' | awk -F: '{ print $1 }' | sort | uniq -d` if [ "${FIND}" = "" ]; then Display --indent 2 --text "- Checking non unique group names" --result "${STATUS_OK}" --color GREEN LogText "Result: All group names are unique" else Display --indent 2 --text "- Checking non unique group names" --result "${STATUS_WARNING}" --color WARNING LogText "Result: Found the same group name multiple times" LogText "Output: ${FIND}" ReportWarning ${TEST_NO} "M" "Found inconsistencies in group file (multiple occurences of a single group)" ReportSuggestion ${TEST_NO} "Check your /etc/group file and correct inconsistencies" fi fi # ################################################################################# # # Test : AUTH-9228 # Description : Check password file consistency with pwck # Notes : Operating systems include Linux, Solaris if [ -x /usr/sbin/pwck ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9228 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check password file consistency with pwck" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking password file consistency (pwck)" TESTED=0 case ${OS} in "Linux") FIND=`/usr/sbin/pwck -q -r 2> /dev/null; echo $?` TESTED=1 ;; "Solaris") FIND=`/usr/sbin/pwck 2> /dev/null; echo $?` TESTED=1 ;; *) LogText "Dev: found /usr/sbin/pwck, but unsure how to call it on this operating system" ;; esac # Only display if this test has been executed if [ ${TESTED} -eq 1 -a "${FIND}" = "0" ]; then Display --indent 2 --text "- Checking password file consistency" --result "${STATUS_OK}" --color GREEN LogText "Result: pwck check didn't find any problems" AddHP 2 2 else Display --indent 2 --text "- Checking password file consistency" --result "${STATUS_WARNING}" --color RED LogText "Result: pwck found one or more errors/warnings in the password file." ReportWarning ${TEST_NO} "M" "pwck found one or more errors/warnings in the password file" ReportSuggestion ${TEST_NO} "Run pwck manually and correct found issues." AddHP 0 2 fi fi # ################################################################################# # # Test : AUTH-9234 # Description : Query user accounts # Notes : AIX: 100+ # HPUX: 100+ # Mac OS X: needs to be improved (just reading passwd file is not enough) # OpenBSD/NetBSD: unknown # Arch Linux / CentOS / Ubuntu: 1000+ Register --test-no AUTH-9234 --weight L --network NO --description "Query user accounts" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Read system users (including root user) from /etc/passwd" FIND="" case ${OS} in "AIX") LogText "AIX real users output (ID = 0, or 100+):" FIND=`awk -F: '($3 >= 100 && $3 != 65534) || ($3 == 0) { print $1","$3 }' /etc/passwd` ;; "FreeBSD") LogText "FreeBSD real users output (ID = 0, or 1000+, but not 65534):" FIND=`awk -F: '($3 >= 1000 && $3 != 65534) || ($3 == 0) { print $1","$3 }' /etc/passwd` ;; "Linux") UID_MIN="" if [ -f /etc/login.defs ]; then UID_MIN=$(grep "^UID_MIN" /etc/login.defs | awk '{print $2}') LogText "Result: found minimal user id specified: ${UID_MIN}" fi if [ "${UID_MIN}" = "" ]; then UID_MIN="1000"; fi LogText "Linux real users output (ID = 0, or ${UID_MIN}+, but not 65534):" FIND=`awk -v UID_MIN="${UID_MIN}" -F: '($3 >= UID_MIN && $3 != 65534) || ($3 == 0) { print $1","$3 }' /etc/passwd` ;; "OpenBSD") LogText "OpenBSD real users output (ID = 0, or 1000-60000, but not 32767):" FIND=`awk -F: '($3 >= 1000 && $3 <= 60000 && $3 != 32767) || ($3 == 0) { print $1","$3 }' /etc/passwd` ;; "Solaris") LogText "Solaris real users output (ID =0, or 100+, but not 60001/65534):" FIND=`awk -F: '($3 >= 100 && $3 != 60001 && $3 != 65534) || ($3 == 0) { print $1","$3 }' /etc/passwd` ;; *) # Want to help improving Lynis? Determine what user IDs belong to normal user accounts ReportException "${TEST_NO}:1" "Can not determine user accounts" ;; esac # Check if we got any output if [ "${FIND}" = "" ]; then Display --indent 4 --text "Result: No users found/unknown result" LogText "Result: Querying of system users skipped" Display --indent 2 --text "- Query system users (non daemons)" --result "${STATUS_UNKNOWN}" --color YELLOW else Display --indent 2 --text "- Query system users (non daemons)" --result "${STATUS_DONE}" --color GREEN for I in ${FIND}; do LogText "Real user: ${I}" Report "real_user[]=${I}" done fi fi # ################################################################################# # # Test : AUTH-9240 # Description : Query NIS+ authentication support Register --test-no AUTH-9240 --weight L --network NO --description "Query NIS+ authentication support" if [ ${SKIPTEST} -eq 0 ]; then if [ -f /etc/nsswitch.conf ]; then FIND=`egrep "^passwd" /etc/nsswitch.conf | egrep "compat|nisplus"` if [ "${FIND}" = "" ]; then LogText "Result: NIS+ authentication not enabled" Display --indent 2 --text "- Checking NIS+ authentication support" --result "NOT ENABLED" --color WHITE else FIND2=`egrep "^passwd_compat" /etc/nsswitch.conf | grep "nisplus"` FIND3=`egrep "^passwd" /etc/nsswitch.conf | grep "nisplus"` if [ ! "${FIND2}" = "" -o ! "${FIND3}" = "" ]; then LogText "Result: NIS+ authentication enabled" Display --indent 2 --text "- Checking NIS+ authentication support" --result "${STATUS_ENABLED}" --color GREEN else LogText "Result: NIS+ authentication not enabled" Display --indent 2 --text "- Checking NIS+ authentication support" --result "NOT ENABLED" --color WHITE fi fi else LogText "Result: /etc/nsswitch.conf not found" fi fi # ################################################################################# # # Test : AUTH-9242 # Description : Query NIS authentication support Register --test-no AUTH-9242 --weight L --network NO --description "Query NIS authentication support" if [ ${SKIPTEST} -eq 0 ]; then if [ -f /etc/nsswitch.conf ]; then FIND=`egrep "^passwd" /etc/nsswitch.conf | egrep "compat|nis" | grep -v "nisplus"` if [ "${FIND}" = "" ]; then LogText "Result: NIS authentication not enabled" Display --indent 2 --text "- Checking NIS authentication support" --result "NOT ENABLED" --color WHITE else FIND2=`egrep "^passwd_compat" /etc/nsswitch.conf | grep "nis" | grep -v "nisplus"` FIND3=`egrep "^passwd" /etc/nsswitch.conf | grep "nis" | grep -v "nisplus"` if [ ! "${FIND2}" = "" -o ! "${FIND3}" = "" ]; then LogText "Result: NIS authentication enabled" Display --indent 2 --text "- Checking NIS authentication support" --result "${STATUS_ENABLED}" --color GREEN else LogText "Result: NIS authentication not enabled" Display --indent 2 --text "- Checking NIS authentication support" --result "NOT ENABLED" --color WHITE fi fi else LogText "Result: /etc/nsswitch.conf not found" fi fi # ################################################################################# # # Test : AUTH-9250 # Description : Check for sudoers file Register --test-no AUTH-9250 --weight L --network NO --description "Checking sudoers file" if [ ${SKIPTEST} -eq 0 ]; then FOUND=0 for I in ${SUDOERS_LOCATIONS}; do LogText "Test: checking presence ${I}" if [ -f ${I} ]; then FOUND=1 SUDOERS_FILE="${I}" LogText "Result: found file (${SUDOERS_FILE})" else LogText "Result: file ${I} not found" fi done if [ ${FOUND} -eq 1 ]; then LogText "Result: sudoers file found (${SUDOERS_FILE})" Display --indent 2 --text "- Checking sudoers file" --result "${STATUS_FOUND}" --color GREEN else LogText "Result: sudoers file NOT found" Display --indent 2 --text "- Checking sudoers file" --result "${STATUS_NOT_FOUND}" --color YELLOW fi fi # ################################################################################# # # Test : AUTH-9252 # Description : Check for sudoers file permissions if [ ! "${SUDOERS_FILE}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9252 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check sudoers file" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: checking sudoers file (${SUDOERS_FILE}) permissions" FIND=`ls -l ${SUDOERS_FILE} | cut -c 2-10` LogText "Result: Found file permissions: ${FIND}" if [ "${FIND}" = "rw-------" -o "${FIND}" = "rw-rw----" -o "${FIND}" = "r--r-----" ]; then LogText "Result: file ${SUDOERS_FILE} has correct permissions" Display --indent 4 --text "- Check sudoers file permissions" --result "${STATUS_OK}" --color GREEN else LogText "Result: file has possibly unsafe file permissions" Display --indent 4 --text "- Check sudoers file permissions" --result "${STATUS_WARNING}" --color RED fi fi # ################################################################################# # # Test : AUTH-9254 # Description : Solaris test to check passwordless accounts Register --test-no AUTH-9254 --os Solaris --weight L --network NO --root-only YES --description "Solaris passwordless accounts" if [ ${SKIPTEST} -eq 0 ]; then FIND=`logins -p | awk '{ print $1 }'` if [ "${FIND}" = "" ]; then LogText "Result: no passwordless accounts found" Display --indent 2 --text "- Checking passwordless accounts on Solaris" --result "${STATUS_OK}" --color GREEN else for I in ${FIND}; do ReportWarning ${TEST_NO} "H" "Found passwordless account (${I})" done Display --indent 2 --text "- Checking passwordless accounts on Solaris" --result "${STATUS_WARNING}" --color RED fi fi # ################################################################################# # # Test : AUTH-9262 # Description : Search for PAM password strength testing libraries Register --test-no AUTH-9262 --weight L --network NO --description "Checking presence password strength testing tools (PAM)" if [ ${SKIPTEST} -eq 0 ]; then FOUND=0 FOUND_CRACKLIB=0 FOUND_PASSWDQC=0 FOUND_PWQUALITY=0 # Cracklib LogText "Searching PAM password testing modules (cracklib, passwdqc, pwquality)" for I in ${PAM_FILE_LOCATIONS}; do if [ -f ${I}/pam_cracklib.so ]; then FOUND_CRACKLIB=1 FOUND=1 LogText "Result: found pam_cracklib.so (crack library PAM) in ${I}" fi if [ -f ${I}/pam_passwdqc.so ]; then FOUND_PASSWDQC=1 FOUND=1 LogText "Result: found pam_passwdqc.so (passwd quality control PAM) in ${I}" fi if [ -f ${I}/pam_pwquality.so ]; then FOUND_PWQUALITY=1 FOUND=1 LogText "Result: found pam_pwquality.so (password quality control PAM) in ${I}" fi done # Cracklib if [ ${FOUND_CRACKLIB} -eq 1 ]; then LogText "Result: pam_cracklib.so found" Report "pam_cracklib=1" else LogText "Result: pam_cracklib.so NOT found (crack library PAM)" fi # Password quality control if [ ${FOUND_PASSWDQC} -eq 1 ]; then LogText "Result: pam_passwdqc.so found" Report "pam_passwdqc=1" else LogText "Result: pam_passwdqc.so NOT found (passwd quality control PAM)" fi # pwquality module if [ ${FOUND_PWQUALITY} -eq 1 ]; then LogText "Result: pam_pwquality.so found" Report "pam_pwquality=1" else LogText "Result: pam_pwquality.so NOT found (pwquality control PAM)" fi if [ ${FOUND} -eq 0 ]; then Display --indent 2 --text "- Checking PAM password strength tools" --result "${STATUS_SUGGESTION}" --color YELLOW LogText "Result: no PAM modules for password strength testing found" ReportSuggestion ${TEST_NO} "Install a PAM module for password strength testing like pam_cracklib or pam_passwdqc" AddHP 0 3 else Display --indent 2 --text "- Checking PAM password strength tools" --result "${STATUS_OK}" --color GREEN LogText "Result: found at least one PAM module for password strength testing" AddHP 3 3 fi fi # ################################################################################# # # Test : AUTH-9264 # Description : Scan /etc/pam.conf file Register --test-no AUTH-9264 --weight L --network NO --description "Checking presence pam.conf" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking file /etc/pam.conf" if [ -f /etc/pam.conf ]; then LogText "Result: file /etc/pam.conf exists" Display --indent 2 --text "- Checking PAM configuration files (pam.conf)" --result "${STATUS_FOUND}" --color GREEN LogText "Test: searching PAM configuration files" FIND=`grep -v "^#" /etc/pam.conf | grep -v "^$" | sed 's/[[:space:]]/ /g' | sed 's/ / /g' | sed 's/ /:space:/g'` if [ "${FIND}" = "" ]; then LogText "Result: File has no configuration options defined (empty, or only filled with comments and empty lines)" else LogText "Result: found one or more configuration lines" for I in ${FIND}; do I=`echo ${I} | sed 's/:space:/ /g'` LogText "Found line: ${I}" done fi else LogText "Result: file /etc/pam.conf could not be found" Display --indent 2 --text "- Checking PAM configuration file (pam.conf)" --result "${STATUS_NOT_FOUND}" --color WHITE fi fi # ################################################################################# # # Test : AUTH-9266 # Description : Searching available PAM configurations (/etc/pam.d) Register --test-no AUTH-9266 --weight L --network NO --description "Checking presence pam.d files" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking directory /etc/pam.d" if [ -d /etc/pam.d ]; then LogText "Result: directory /etc/pam.d exists" Display --indent 2 --text "- Checking PAM configuration files (pam.d)" --result "${STATUS_FOUND}" --color GREEN LogText "Test: searching PAM configuration files" FIND=`find /etc/pam.d -type f -print | sort` for I in ${FIND}; do LogText "Found file: ${I}" done else LogText "Result: directory /etc/pam.d could not be found" Display --indent 2 --text "- Checking PAM configuration files (pam.d)" --result "${STATUS_NOT_FOUND}" --color WHITE fi fi # ################################################################################# # # Test : AUTH-9268 # Description : Searching available PAM files # Notes : PAM is used on AIX, FreeBSD, Linux, HPUX, Solaris if [ ${OS} = "AIX" -o ${OS} = "Linux" -o ${OS} = "HPUX" -o ${OS} = "Solaris" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9268 --preqs-met ${PREQS_MET} --weight L --network NO --description "Checking presence pam.d files" if [ ${SKIPTEST} -eq 0 ]; then FOUND=0 LogText "Test: Searching pam modules" for I in ${PAM_FILE_LOCATIONS}; do LogText "Test: Checking ${I}" if [ -d ${I} -a ! -L ${I} ]; then LogText "Result: directory ${I} exists" # Search in the specified directory FIND=`find ${I} -maxdepth 1 -type f -name "pam_*.so" -print | sort` if [ ! "${FIND}" = "" ]; then FOUND=1; fi for I in ${FIND}; do LogText "Found file: ${I}" Report "pam_module[]=${I}" done else LogText "Result: directory ${I} could not be found or is a symlink to another directory" fi done # Check if we found at least one module if [ ${FOUND} -eq 0 ]; then Display --indent 2 --text "- Checking PAM modules" --result "${STATUS_NOT_FOUND}" --color WHITE LogText "Result: no PAM modules found" else Display --indent 2 --text "- Checking PAM modules" --result "${STATUS_FOUND}" --color GREEN fi fi # ################################################################################# # # Test : AUTH-9278 # Description : Search LDAP support in PAM files Register --test-no AUTH-9278 --weight L --network NO --description "Checking LDAP pam status" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: checking presence /etc/pam.d/common-auth" if [ -f /etc/pam.d/common-auth ]; then LogText "Result: file /etc/pam.d/common-auth exists" LogText "Test: checking presence LDAP module" FIND=`grep "^auth.*ldap" /etc/pam.d/common-auth` if [ ! "${FIND}" = "" ]; then LogText "Result: LDAP module present" LogText "Output: ${FIND}" Display --indent 2 --text "- Checking LDAP module in PAM" --result "${STATUS_FOUND}" --color GREEN LDAP_AUTH_ENABLED=1 LDAP_PAM_ENABLED=1 else LogText "Result: LDAP module not found" Display --indent 2 --text "- Checking LDAP module in PAM" --result "${STATUS_NOT_FOUND}" --color WHITE fi else LogText "Result: file /etc/pam.d/common-auth not found, skipping test" fi fi # ################################################################################# # # Test : AUTH-9282 and AUTH-9283 # Note : Every Linux based operating system seem to have different passwd # options, so we have to check the version first. if [ "${OS}" = "Linux" ]; then if [ ${OS_REDHAT_OR_CLONE} -eq 0 ]; then case ${LINUX_VERSION} in "SuSE") PREQS_MET="YES" FIND=`passwd -a -S 2> /dev/null | awk '{ if ($2=="P" && $5=="99999") print $1 }'` FIND2=`passwd -a -S 2> /dev/null | awk '{ if ($2=="NP") print $1 }'` ;; *) PREQS_MET="YES" FIND=`passwd --all --status 2> /dev/null | awk '{ if ($2=="P" && $5=="99999") print $1 }'` FIND2=`passwd --all --status 2> /dev/null | awk '{ if ($2=="NP") print $1 }'` ;; esac else LogText "Result: skipping test for this Linux version" ReportManual "AUTH-9282:01" PREQS_MET="NO" FIND="" FIND2="" fi else PREQS_MET="NO" fi # Test : AUTH-9282 # Description : Search password protected accounts without expire (Linux) Register --test-no AUTH-9282 --preqs-met ${PREQS_MET} --weight L --network NO --description "Checking password protected account without expire date" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking Linux version and password expire date status" if [ "${FIND}" = "" ]; then LogText "Result: all accounts seem to have an expire date" Display --indent 2 --text "- Checking accounts without expire date" --result "${STATUS_OK}" --color GREEN else LogText "Result: found one or more accounts with expire date set" for I in ${FIND}; do LogText "Account without expire date: ${I}" done Display --indent 2 --text "- Checking accounts without expire date" --result "${STATUS_SUGGESTION}" --color YELLOW ReportSuggestion ${TEST_NO} "When possible set expire dates for all password protected accounts" fi fi # Test : AUTH-9283 # Description : Search passwordless accounts Register --test-no AUTH-9283 --preqs-met ${PREQS_MET} --weight L --network NO --description "Checking accounts without password" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking passwordless accounts" if [ "${FIND2}" = "" ]; then LogText "Result: all accounts seem to have a password" Display --indent 2 --text "- Checking accounts without password" --result "${STATUS_OK}" --color GREEN else LogText "Result: found one or more accounts without password" for I in ${FIND2}; do LogText "Account without password: ${I}" Report "account_without_password=${I}" done Display --indent 2 --text "- Checking accounts without password" --result "${STATUS_WARNING}" --color RED ReportWarning ${TEST_NO} "Found accounts without password" fi fi # ################################################################################# # # Test : AUTH-9286 # Description : Check user password aging # Notes : MIN = minimum age, avoid rotation of passwords too quickly # : MAX = maximum age, ensure regular change of passwords if [ -f /etc/login.defs ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9286 --preqs-met ${PREQS_MET} --weight L --network NO --description "Checking user password aging" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking PASS_MIN_DAYS option in /etc/login.defs " FIND=`grep "^PASS_MIN_DAYS" /etc/login.defs | awk '{ if ($1=="PASS_MIN_DAYS") { print $2 } }'` if [ "${FIND}" = "" -o "${FIND}" = "0" ]; then LogText "Result: password minimum age is not configured" Display --indent 2 --text "- Checking user password aging (minimum)" --result "${STATUS_DISABLED}" --color YELLOW ReportSuggestion ${TEST_NO} "Configure minimum password age in /etc/login.defs" AddHP 0 1 else LogText "Result: password needs to be at least ${FIND} days old" PASSWORD_MINIMUM_DAYS=${FIND} Display --indent 2 --text "- Checking user password aging (minimum)" --result CONFIGURED --color GREEN AddHP 3 3 fi LogText "Test: Checking PASS_MAX_DAYS option in /etc/login.defs " FIND=`grep "^PASS_MAX_DAYS" /etc/login.defs | awk '{ if ($1=="PASS_MAX_DAYS") { print $2 } }'` if [ "${FIND}" = "" -o "${FIND}" = "99999" ]; then LogText "Result: password aging limits are not configured" Display --indent 2 --text "- Checking user password aging (maximum)" --result "${STATUS_DISABLED}" --color YELLOW ReportSuggestion ${TEST_NO} "Configure maximum password age in /etc/login.defs" AddHP 0 1 else LogText "Result: max password age is ${FIND} days" PASSWORD_MAXIMUM_DAYS=${FIND} Display --indent 2 --text "- Checking user password aging (maximum)" --result CONFIGURED --color GREEN AddHP 3 3 fi fi # ################################################################################# # # Test : AUTH-9288 # Description : Determine which accounts have an expired password # Notes : This test might not work (yet) on all platforms if [ -f /etc/shadow ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9288 --preqs-met ${PREQS_MET} --weight L --network NO --root-only YES --description "Checking for expired passwords" if [ ${SKIPTEST} -eq 0 ]; then if FileIsReadable /etc/shadow; then DAYS_SINCE_EPOCH=$((`date --utc +%s`/86400)) LogText "Data: Days since epoch is ${DAYS_SINCE_EPOCH}" LogText "Test: collecting accounts which have an expired password (last day changed + maximum change time)" # Skip fields with a !, *, or x, or !* (field $3 is last changed, $5 is maximum changed) FIND=`egrep -v ":[\!\*x](\*)?:" /etc/shadow | awk -v today=${DAYS_SINCE_EPOCH} -F: '{ if (($5!="") && (today>$3+$5)) { print $1 }}'` if [ ! "${FIND}" = "" ]; then for ACCOUNT in ${FIND}; do LogText "Result: password of user ${ACCOUNT} has been expired" Report "account_password_expired[]=${ACCOUNT}" done AddHP 0 10 Display --indent 2 --text "- Checking expired passwords" --result "${STATUS_FOUND}" --color RED ReportSuggestion "${TEST_NO}" "Delete accounts which are no longer used" else LogText "Result: good, no passwords have been expired" Display --indent 2 --text "- Checking expired passwords" --result "${STATUS_OK}" --color GREEN AddHP 10 10 fi else Display --indent 2 --text "- Checking expired passwords" --result "${STATUS_SKIPPED}" --color YELLOW fi fi # ################################################################################# # # Test : AUTH-9304 # Description : Check if single user mode login is properly configured in Solaris # Notes : sulogin should be called from svm script (Solaris <10) in /etc/rcS.d Register --test-no AUTH-9304 --os Solaris --weight L --network NO --description "Check single user login configuration" if [ ${SKIPTEST} -eq 0 ]; then # Check if file exists (Solaris 10 does not have this file by default) if [ -f /etc/default/sulogin ]; then LogText "Result: file /etc/default/sulogin exists" LogText "Test: checking presence PASSREQ=NO" FIND=`grep "^PASSREQ=NO" /etc/default/sulogin` if [ "${FIND}" = "" ]; then LogText "Result: option not present or configured to request a password at single user mode login" Display --indent 2 --text "- Checking Solaris /etc/default/sulogin file" --result "${STATUS_OK}" --color GREEN AddHP 1 1 else LogText "Result: option present, no password needed at single user mode login" Display --indent 2 --text "- Checking Solaris /etc/default/sulogin file" --result "${STATUS_WARNING}" --color RED ReportWarning ${TEST_NO} "H" "No password needed for single user mode login" AddHP 0 1 fi else LogText "Result: file /etc/default/sulogin does not exist" fi fi # ################################################################################# # # Test : AUTH-9306 # Description : Check if authentication is needed to boot the system # Notes : :d_boot_authenticate: is a good option for production machines to # avoid unauthorized booting of systems. Option :d_boot_autentication@: # disabled a required login. Register --test-no AUTH-9306 --os HP-UX --weight L --network NO --description "Check single boot authentication" if [ ${SKIPTEST} -eq 0 ]; then # Check if file exists LogText "Test: Searching /tcb/files/auth/system/default" if [ -f /tcb/files/auth/system/default ]; then LogText "Result: file /tcb/files/auth/system/default exists" LogText "Test: checking presence :d_boot_authenticate@:" FIND=`grep "^:d_boot_authenticate@" /tcb/files/auth/system/default` if [ "${FIND}" = "" ]; then LogText "Result: option not set, password is needed at boot" Display --indent 2 --text "- Checking HP-UX boot authentication" --result "${STATUS_OK}" --color GREEN AddHP 1 1 else LogText "Result: option present, no password needed at single user mode login" Display --indent 2 --text "- Checking HP-UX boot authentication" --result "${STATUS_SUGGESTION}" --color YELLOW ReportSuggestion ${TEST_NO} "Set password for system boot" AddHP 0 1 fi else LogText "Result: file /tcb/files/auth/system/default does not exist" fi fi # ################################################################################# # # Test : AUTH-9308 # Description : Check single user mode login for Linux Register --test-no AUTH-9308 --os Linux --weight L --network NO --description "Check single user login configuration" if [ ${SKIPTEST} -eq 0 ]; then FOUND=0 TEST_PERFORMED=0 if [ ${HAS_SYSTEMD} -eq 0 ]; then # Check inittab LogText "Test: Searching /etc/inittab" if [ -f /etc/inittab ]; then TEST_PERFORMED=1 LogText "Result: file /etc/inittab exists" LogText "Test: checking presence sulogin for single user mode" FIND=`egrep "^~~:S:(respawn|wait):/sbin/sulogin" /etc/inittab` FIND2=`egrep "^su:S:(respawn|wait):/sbin/sulogin" /etc/inittab` if [ ! "${FIND}" = "" -o ! "${FIND2}" = "" ]; then FOUND=1 LogText "Result: found sulogin, so single user is protected" fi else LogText "Result: file /etc/inittab does not exist" fi # Check init LogText "Test: Searching /etc/sysconfig/init" if [ -f /etc/sysconfig/init ]; then TEST_PERFORMED=1 LogText "Result: file /etc/sysconfig/init exists" LogText "Test: checking presence sulogin for single user mode" FIND=`grep "^SINGLE=/sbin/sulogin" /etc/sysconfig/init` if [ ! "${FIND}" = "" ]; then FOUND=1 LogText "Result: found sulogin, so single user is protected" fi else LogText "Result: file /etc/sysconfig/init does not exist" fi fi # Systemd support SYSTEMD_DIRECTORY="/lib/systemd/system" if [ -d ${SYSTEMD_DIRECTORY} ]; then FILES="console-shell.service emergency.service rescue.service" LogText "Test: going to check several systemd targets now" for I in ${FILES}; do FILE="${SYSTEMD_DIRECTORY}/${I}" LogText "Test: checking if target ${I} is available (${FILE})" if [ -f ${FILE} ]; then # Mark test as performed only when at least 1 target exists (e.g. Ubuntu 14.04 has limited systemd support) TEST_PERFORMED=1 LogText "Result: found target ${I}" FIND=`egrep "^ExecStart=" ${FILE} | grep "/sulogin"` if [ "${FIND}" = "" ]; then LogText "Result: did not find sulogin specified, possible risk of getting into single user mode without authentication" else LogText "Result: sulogin was found, which is a good measure to protect single user mode" FOUND=1 fi else LogText "Result: target ${I} not found" fi done fi if [ ${TEST_PERFORMED} -eq 1 ]; then if [ ${FOUND} -eq 0 ]; then LogText "Result: option not set, no password needed at single user mode boot" Display --indent 2 --text "- Checking Linux single user mode authentication" --result "${STATUS_WARNING}" --color RED ReportWarning ${TEST_NO} "L" "No password set for single mode" ReportSuggestion ${TEST_NO} "Set password for single user mode to minimize physical access attack surface" AddHP 0 2 else LogText "Result: option set, password is needed at single user mode boot" Display --indent 2 --text "- Checking Linux single user mode authentication" --result "${STATUS_OK}" --color GREEN AddHP 2 2 fi else LogText "Result: no tests performed" fi fi # ################################################################################# # # Test : AUTH-9328 # Description : Check default umask in common files # Notes: This test should be moved later to shells section # /etc/login.defs # pam_umask Register --test-no AUTH-9328 --weight L --network NO --description "Default umask values" if [ ${SKIPTEST} -eq 0 ]; then Display --indent 2 --text "- Determining default umask" # /etc/profile LogText "Test: Checking /etc/profile" if [ -f /etc/profile ]; then LogText "Result: file /etc/profile exists" LogText "Test: Checking umask value in /etc/profile" FIND=`grep "umask" /etc/profile | sed 's/^[ \t]*//' | grep -v "^#" | awk '{ print $2 }'` FIND2=`grep "umask" /etc/profile | sed 's/^[ \t]*//' | grep -v "^#" | awk '{ print $2 }' | wc -l` WEAK_UMASK=0 FOUND_UMASK=0 if [ "${FIND2}" = "0" ]; then LogText "Result: did not find umask in /etc/profile" #YYY possibly weak umask elif [ "${FIND2}" = "1" ]; then LogText "Result: found umask (prefixed with spaces)" FOUND_UMASK=1 if [ ! "${FIND}" = "077" -a ! "${FIND}" = "027" ]; then LogText "Result: found umask ${FIND}, which could be more strict" WEAK_UMASK=1 AddHP 1 2 else LogText "Result: found umask ${FIND}, which is fine" AddHP 2 2 fi # Found more than 1 umask value in profile else LogText "Result: found multiple umask values configured in /etc/profile" FOUND_UMASK=1 for I in ${FIND}; do if [ ! "${I}" = "077" -a ! "${I}" = "027" ]; then LogText "Result: umask ${I} could be more strict" WEAK_UMASK=1 AddHP 1 2 else LogText "Result: Found umask ${I}, which is fine" AddHP 2 2 fi done fi if [ ${FOUND_UMASK} -eq 1 ]; then if [ ${WEAK_UMASK} -eq 0 ]; then Display --indent 4 --text "- Checking umask (/etc/profile)" --result "${STATUS_OK}" --color GREEN AddHP 2 2 else Display --indent 4 --text "- Checking umask (/etc/profile)" --result "${STATUS_SUGGESTION}" --color YELLOW ReportSuggestion ${TEST_NO} "Default umask in /etc/profile could be more strict like 027" AddHP 0 2 fi else # Some operating systems don't have a default umask defined in /etc/profile (Debian) LogText "Result: found no umask. Please check if this is correct" Display --indent 4 --text "- Checking umask (/etc/profile)" --result "${STATUS_NOT_FOUND}" --color YELLOW fi else LogText "Result: file /etc/profile does not exist" fi # /etc/passwd LogText "Test: Checking umask entries in /etc/passwd (pam_umask)" if [ -f /etc/passwd ]; then LogText "Result: file /etc/passwd exists" LogText "Test: Checking umask value in /etc/passwd" FIND=`grep "umask=" /etc/passwd` if [ "${FIND}" = "" ]; then ReportManual "AUTH-9328:03" fi else LogText "Result: file /etc/passwd does not exist" fi # /etc/login.defs LogText "Test: Checking /etc/login.defs" if [ -f /etc/login.defs ]; then LogText "Result: file /etc/login.defs exists" LogText "Test: Checking umask value in /etc/login.defs" FIND=`grep "^UMASK" /etc/login.defs | awk '{ print $2 }'` if [ "${FIND}" = "" ]; then LogText "Result: umask value is not configured (most likely it will have the default 022 value)" Display --indent 4 --text "- Checking umask (/etc/login.defs)" --result "${STATUS_SUGGESTION}" --color YELLOW ReportSuggestion ${TEST_NO} "Default umask in /etc/login.defs could not be found and defaults usually to 022, which could be more strict like 027" AddHP 1 2 elif [ "${FIND}" = "077" -o "${FIND}" = "027" ]; then LogText "Result: umask is ${FIND}, which is fine" Display --indent 4 --text "- Checking umask (/etc/login.defs)" --result "${STATUS_OK}" --color GREEN AddHP 2 2 else LogText "Result: found umask ${FIND}, which could be improved" Display --indent 4 --text "- Checking umask (/etc/login.defs)" --result "${STATUS_SUGGESTION}" --color YELLOW ReportSuggestion ${TEST_NO} "Default umask in /etc/login.defs could be more strict like 027" AddHP 0 2 fi else LogText "Result: file /etc/login.defs does not exist" fi # Red Hat /etc/init.d/functions LogText "Test: Checking /etc/init.d/functions" if [ -f /etc/init.d/functions ]; then LogText "Result: file /etc/init.d/functions exists" LogText "Test: Checking umask value in /etc/init.d/functions" FIND=`grep "^umask" /etc/init.d/functions | awk '{ print $2 }'` if [ "${FIND}" = "" ]; then LogText "Result: umask is not configured" Display --indent 4 --text "- Checking umask (/etc/init.d/functions)" --result "${STATUS_NONE}" --color WHITE elif [ "${FIND}" = "077" -o "${FIND}" = "027" ]; then LogText "Result: umask is ${FIND}, which is fine" Display --indent 4 --text "- Checking umask (/etc/init.d/functions)" --result "${STATUS_OK}" --color GREEN AddHP 2 2 else LogText "Result: found umask ${FIND}, which could be improved" Display --indent 4 --text "- Checking umask (/etc/init.d/functions)" --result "${STATUS_SUGGESTION}" --color YELLOW AddHP 0 2 fi else LogText "Result: file /etc/init.d/functions does not exist" fi # /etc/init.d/rc LogText "Test: Checking /etc/init.d/rc" if [ -f /etc/init.d/rc ]; then LogText "Result: file /etc/init.d/rc exists" LogText "Test: Checking UMASK value in /etc/init.d/rc" FIND=`grep -i "^UMASK" /etc/init.d/rc | awk '{ print $2 }'` if [ "${FIND}" = "" ]; then LogText "Result: UMASK value is not configured (most likely it will have the default 022 value)" Display --indent 4 --text "- Checking umask (/etc/init.d/rc)" --result "${STATUS_SUGGESTION}" --color YELLOW ReportSuggestion ${TEST_NO} "Default umask in /etc/init.d/rc could not be found and defaults usually to 022, which could be more strict like 027" AddHP 1 2 elif [ "${FIND}" = "077" -o "${FIND}" = "027" ]; then LogText "Result: umask is ${FIND}, which is fine" Display --indent 4 --text "- Checking umask (/etc/init.d/rc)" --result "${STATUS_OK}" --color GREEN AddHP 2 2 else LogText "Result: found umask ${FIND}, which could be improved" Display --indent 4 --text "- Checking umask (/etc/init.d/rc)" --result "${STATUS_SUGGESTION}" --color YELLOW ReportSuggestion ${TEST_NO} "Default umask in /etc/init.d/rc could be more strict like 027" AddHP 0 2 fi else LogText "Result: file /etc/init.d/rc does not exist" fi # FreeBSD if [ -f /etc/login.conf ]; then FOUND=0 WEAK_UMASK=0 LogText "Result: file /etc/login.conf exists" FIND=`grep "umask" /etc/login.conf | sed 's/#.*//' | sed -E 's/^[[:cntrl:]]//' | grep -v '^$' | awk -F: '{ print $2}' | awk -F= '{ if ($1=="umask") { print $2 }}'` if [ ! "${FIND}" = "" ]; then for UMASK_VALUE in ${FIND}; do case ${UMASK_VALUE} in 027|0027|077|0077) LogText "Result: found umask value ${UMASK_VALUE}, which is fine" AddHP 2 2 FOUND=1 ;; *) AddHP 0 2 FOUND=1 WEAK_UMASK=1 LogText "Result: found umask value ${UMASK_VALUE}, which can be more strict" ;; esac done fi if [ ${FOUND} -eq 1 ]; then if [ ${WEAK_UMASK} -eq 0 ]; then Display --indent 4 --text "- Checking umask (/etc/login.conf)" --result "${STATUS_OK}" --color GREEN else Display --indent 4 --text "- Checking umask (/etc/login.conf)" --result WEAK --color YELLOW ReportSuggestion ${TEST_NO} "Umask in /etc/login.conf could be more strict like 027" fi else LogText "Result: no umask setting found in /etc/login.conf, which is unexpected" Display --indent 4 --text "- Checking umask (/etc/login.conf)" --result "${STATUS_NONE}" --color YELLOW fi fi # /etc/init.d/rcS LogText "Test: Checking /etc/init.d/rcS" if [ -f /etc/init.d/rcS ]; then LogText "Result: file /etc/init.d/rcS exists" LogText "Test: Checking if script runs another script." FIND=`grep -i "^exec " /etc/init.d/rcS | awk '{ print $2 }'` if [ "${FIND}" = "" ]; then FIND2=`grep -i "^UMASK" /etc/init.d/rcS | awk '{ print $2 }'` if [ "${FIND2}" = "" ]; then LogText "Result: UMASK value is not configured (most likely it will have the default 022 value)" Display --indent 4 --text "- Checking umask (/etc/init.d/rcS)" --result "${STATUS_SUGGESTION}" --color YELLOW ReportSuggestion ${TEST_NO} "Default umask in /etc/init.d/rcS could not be found and defaults usually to 022, which could be more strict like 027" AddHP 1 2 elif [ "${FIND2}" = "077" -o "${FIND2}" = "027" ]; then LogText "Result: umask is ${FIND2}, which is fine" Display --indent 4 --text "- Checking umask (/etc/init.d/rcS)" --result "${STATUS_OK}" --color GREEN AddHP 2 2 else LogText "Result: found umask ${FIND2}, which could be improved" Display --indent 4 --text "- Checking umask (/etc/init.d/rcS)" --result "${STATUS_SUGGESTION}" --color YELLOW ReportSuggestion ${TEST_NO} "Default umask in /etc/init.d/rcS could be more strict like 027" AddHP 0 2 fi else # Improve check LogText "Result: exec line present in file, setting of umask not needed in this script" LogText "Output: ${FIND}" fi else LogText "Result: file /etc/init.d/rcS does not exist" fi fi # ################################################################################# # # Test : AUTH-9340 # Description : Solaris account locking Register --test-no AUTH-9340 --os Solaris --weight L --network NO --description "Solaris account locking" if [ ${SKIPTEST} -eq 0 ]; then FOUND=0 if [ -f /etc/security/policy.conf ]; then LogText "Result: found /etc/security/policy.conf" FIND=`grep "^LOCK_AFTER_RETRIES" /etc/security/policy.conf` if [ ! "${FIND}" = "" ]; then FOUND=1 LogText "Result: account locking option set" LogText "Output: ${FIND}" AddHP 2 2 else LogText "Result: option LOCK_AFTER_RETRIES not set" AddHP 1 2 fi else LogText "Result: /etc/security/policy.conf does not exist" fi # If policy.conf does not exist, we most likely deal with a Solaris version below 10 # and we proceed with checking the softer option RETRIES in /etc/default/login # which does not lock account, but discourages brute force password attacks. if [ ${FOUND} -eq 0 ]; then LogText "Test: checking /etc/default/login" if [ -f /etc/default/login ]; then LogText "Result: file /etc/default/login exists" FIND=`grep "^RETRIES" /etc/default/login` if [ ! "${FIND}" = "" ]; then FOUND=1 LogText "Result: retries option configured" LogText "Output: ${FIND}" AddHP 2 2 else LogText "Result: retries option not configured" AddHP 1 2 fi else LogText "Result: file /etc/default/login does not exist" fi fi if [ ${FOUND} -eq 1 ]; then Display --indent 2 --text "- Checking account locking" --result "${STATUS_ENABLED}" --color GREEN else Display --indent 2 --text "- Checking account locking" --result "NOT ENABLED" --color YELLOW fi fi # ################################################################################# # # Test : AUTH-9402 # Description : Query LDAP authentication support Register --test-no AUTH-9402 --weight L --network NO --description "Query LDAP authentication support" if [ ${SKIPTEST} -eq 0 ]; then if [ -f /etc/nsswitch.conf ]; then FIND=`egrep "^passwd" /etc/nsswitch.conf | grep "ldap"` if [ "${FIND}" = "" ]; then LogText "Result: LDAP authentication not enabled" Display --indent 2 --text "- Checking LDAP authentication support" --result "NOT ENABLED" --color WHITE else LogText "Result: LDAP authentication enabled" Display --indent 2 --text "- Checking LDAP authentication support" --result "${STATUS_ENABLED}" --color GREEN LDAP_AUTH_ENABLED=1 fi else LogText "Result: /etc/nsswitch.conf not found" fi fi # ################################################################################# # # Test : AUTH-9406 # Description : Check LDAP servers in client configuration if [ ${LDAP_AUTH_ENABLED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9406 --preqs-met ${PREQS_MET} --weight L --network NO --description "Query LDAP servers in client configuration" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: checking ldap.conf options" for I in ${LDAP_CONF_LOCATIONS}; do LogText "Test: checking ${I}" if [ -f ${I} ]; then LogText "Result: file ${I} exists, LDAP being used" LDAP_CLIENT_CONFIG_FILE="${I}" LogText "Test: checking LDAP servers in file ${I}" FIND2=`egrep "^host " ${I} | awk '{ print $2 }'` for I in ${FIND2}; do Display --indent 6 --text "LDAP server: ${I}" LogText "Result: found LDAP server ${I}" Report "ldap_server[]=${I}" done else LogText "Result: ${I} does NOT exist" fi done fi # ################################################################################# # # Test : AUTH-9408 # Description : Logging of failed login attempts if [ -f /etc/login.defs ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi Register --test-no AUTH-9408 --preqs-met ${PREQS_MET} --weight L --network NO --description "Logging of failed login attempts via /etc/login.defs" if [ ${SKIPTEST} -eq 0 ]; then LogText "Test: Checking FAILLOG_ENAB option in /etc/login.defs " FIND=`grep "^FAILLOG_ENAB" /etc/login.defs | awk '{ if ($1=="FAILLOG_ENAB") { print $2 } }'` # Search for enabled status (yes), otherwise consider it to be disabled (e.g. empty, or other value) if [ "${FIND}" = "yes" ]; then AUTH_FAILED_LOGINS_LOGGED=1 LogText "Result: failed login attempts are logged in /var/log/faillog" Display --indent 2 --text "- Logging failed login attempts" --result "${STATUS_ENABLED}" --color GREEN AddHP 3 3 else LogText "Result: failed login attempts are not logged" Display --indent 2 --text "- Logging failed login attempts" --result "${STATUS_DISABLED}" --color YELLOW #ReportSuggestion ${TEST_NO} "Configure failed login attempts to be logged in /var/log/faillog" AddHP 0 1 fi fi # ################################################################################# # Report "auth_failed_logins_logged=${AUTH_FAILED_LOGINS_LOGGED}" Report "ldap_auth_enabled=${LDAP_AUTH_ENABLED}" Report "ldap_pam_enabled=${LDAP_PAM_ENABLED}" if [ ! "${LDAP_CLIENT_CONFIG_FILE}" = "" ]; then Report "ldap_config_file=${LDAP_CLIENT_CONFIG_FILE}" fi Report "password_min_days=${PASSWORD_MINIMUM_DAYS}" Report "password_max_days=${PASSWORD_MAXIMUM_DAYS}" WaitForKeyPress # #================================================================================ # Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com