lynis/include/tests_boot_services

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#!/bin/sh
#################################################################################
#
# Lynis
# ------------------
#
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# Copyright 2007-2013, Michael Boelen
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# Copyright 2007-2020, CISOfy
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#
# Website : https://cisofy.com
# Blog : http://linux-audit.com
# GitHub : https://github.com/CISOfy/lynis
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#
# 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.
#
#################################################################################
#
# Category: Boot and services
#
#################################################################################
#
InsertSection "Boot and services"
#
#################################################################################
#
BOOT_LOADER="unknown"
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BOOT_LOADER_FOUND=0
BOOT_LOADER_SEARCHED=0
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GRUB_VERSION=0
if [ -z "${SERVICE_MANAGER}" ]; then
SERVICE_MANAGER="unknown"
fi
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#
#################################################################################
#
# Test : BOOT-5102
# Description : Check for AIX boot device
# Notes : The AIX bootstrap is called as software ROS. Bootstrap contains IPL (Initial Program loader)
# TODO - binary detection of bootinfo and replace with variable
Register --test-no BOOT-5102 --os AIX --weight L --network NO --root-only YES --category security --description "Check for AIX boot device"
if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
LogText "Test: Query bootinfo for AIX boot device"
if [ -x /usr/sbin/bootinfo ]; then
FIND=$(/usr/sbin/bootinfo -b)
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if [ -n "${FIND}" ]; then
LogText "Result: found boot device ${FIND}"
Display --indent 2 --text "- Checking boot device (bootinfo)" --result "${STATUS_FOUND}" --color GREEN
BOOT_LOADER="ROS"
BOOT_LOADER_FOUND=1
else
LogText "Result: no data received from bootinfo, most likely boot device not found"
fi
fi
fi
#
#################################################################################
#
# Test : BOOT-5104
# Description : Determine service manager
# Notes :
# initscripts - Used by Arch before
# systemd - Common option with more Linux distros implementing it
# upstart - Used by Debian/Ubuntu
Register --test-no BOOT-5104 --weight L --network NO --category security --description "Determine service manager"
if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
case ${OS} in
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"Linux")
if [ -f /proc/1/cmdline ]; then
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OUTPUT=$(${AWKBINARY} '/(^\/|init)/ { print $1 }' /proc/1/cmdline | ${TRBINARY} '\0' ' ' | ${SEDBINARY} 's/ $//')
LogText "Result: cmdline found = ${OUTPUT}"
FILENAME=$(echo "${OUTPUT}" | ${AWKBINARY} '{print $1}')
LogText "Result: file on disk = ${FILENAME}"
ISFILE=$(echo ${FILENAME} | ${GREPBINARY} "^/")
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if [ -n "${ISFILE}" ]; then
if [ -L ${ISFILE} ]; then
ShowSymlinkPath ${ISFILE}
FILENAME="${SYMLINK}"
elif [ -f ${ISFILE} ]; then
FILENAME="${ISFILE}"
else
LogText "Result: cmdline of PID 1 is not a file"
fi
fi
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if [ -n "${FILENAME}" ]; then
SHORTNAME=$(echo ${FILENAME} | ${AWKBINARY} -F/ '{ print $NF }')
LogText "Found: ${SHORTNAME}"
if [ "${SERVICE_MANAGER}" = "unknown" ]; then
case ${SHORTNAME} in
busybox)
SERVICE_MANAGER="busybox"
;;
"init" | "initsplash")
if [ -d ${ROOTDIR}etc/rc.d ]; then
SERVICE_MANAGER="bsdrc.d"
else
SERVICE_MANAGER="SysV Init"
fi
;;
systemd)
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SERVICE_MANAGER="systemd"
;;
upstart)
SERVICE_MANAGER="upstart"
;;
*)
CONTAINS_SYSTEMD=$(echo ${SHORTNAME} | ${GREPBINARY} "systemd")
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if [ -n "${CONTAINS_SYSTEMD}" ]; then
SERVICE_MANAGER="systemd"
else
LogText "Found ${SHORTNAME}. Unclear what service manager this is"
ReportException "${TEST_NO}:001" "Unknown service manager"
fi
;;
esac
fi
else
LogText "Result: /proc/1/cmdline seems to be empty"
ReportException "${TEST_NO}:002" "No data found in /proc/1/cmdline"
fi
fi
# Continue testing if we didn't find it yet
if [ "${SERVICE_MANAGER}" = "unknown" ]; then
if [ -f /usr/bin/init-openrc ]; then SERVICE_MANAGER="openrc"; fi
fi
;;
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"DragonFly" | "NetBSD" | "FreeBSD" | "OpenBSD")
if [ -x /sbin/init -a -d ${ROOTDIR}etc/rc.d -a -f ${ROOTDIR}etc/rc ]; then
SERVICE_MANAGER="bsdrc"
fi
;;
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"macOS")
if [ -x ${ROOTDIR}sbin/launchd ]; then
SERVICE_MANAGER="launchd"
fi
;;
*)
LogText "Result: unknown service manager"
;;
esac
LogText "Result: service manager found = ${SERVICE_MANAGER}"
if [ "${SERVICE_MANAGER}" = "" -o "${SERVICE_MANAGER}" = "unknown" ]; then
Display --indent 2 --text "- Service Manager" --result "${STATUS_UNKNOWN}" --color YELLOW
else
Display --indent 2 --text "- Service Manager" --result "${SERVICE_MANAGER}" --color GREEN
fi
fi
#
#################################################################################
#
# Test : BOOT-5106
# Description : Check if boot.efi is found on macOS/macOS
Register --test-no BOOT-5106 --os "macOS" --weight L --network NO --root-only YES --category security --description "Check EFI boot file on Mac OS X/macOS"
if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
FileExists ${ROOTDIR}System/Library/CoreServices/boot.efi
if [ ${FILE_FOUND} -eq 1 ]; then
LogText "Result: found macOS/Mac OS X boot.efi file"
BOOT_LOADER="macOS-boot-EFI"
BOOT_LOADER_FOUND=1
fi
fi
#
#################################################################################
#
# Test : BOOT-5108
# Description : Check for Syslinux
Register --test-no BOOT-5108 --os "Linux" --weight L --network NO --root-only YES --category security --description "Check Syslinux as bootloader"
if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
FileExists ${ROOTDIR}boot/syslinux/syslinux.cfg
if [ ${FILE_FOUND} -eq 1 ]; then
LogText "Result: found Syslinux"
BOOT_LOADER="Syslinux"
BOOT_LOADER_FOUND=1
fi
fi
#
#################################################################################
#
# Test : BOOT-5109
# Description : Check for rEFInd
Register --test-no BOOT-5109 --os "Linux" --weight L --network NO --root-only YES --category security --description "Check rEFInd as bootloader"
if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
FileExists ${ROOTDIR}boot/refind_linux.conf
if [ ${FILE_FOUND} -eq 1 ]; then
LogText "Result: found rEFInd"
BOOT_LOADER="rEFInd"
BOOT_LOADER_FOUND=1
fi
fi
#
#################################################################################
#
# Test : BOOT-5116
# Description : Check if system is booted in UEFI mode
Register --test-no BOOT-5116 --weight L --network NO --root-only YES --category security --description "Check if system is booted in UEFI mode"
if [ ${SKIPTEST} -eq 0 ]; then
UEFI_TESTS_PERFORMED=0
case ${OS} in
Linux)
UEFI_TESTS_PERFORMED=1
# Check if UEFI is available in this boot
LogText "Test: checking if UEFI is used"
if [ -d ${ROOTDIR}sys/firmware/efi ]; then
LogText "Result: system booted in UEFI mode"
UEFI_BOOTED=1
else
LogText "Result: UEFI not used, can't find /sys/firmware/efi directory"
fi
# Test if Secure Boot is enabled
LogText "Test: determine if Secure Boot is used"
if [ -d ${ROOTDIR}sys/firmware/efi/efivars ]; then
FIND=$(${LSBINARY} ${ROOTDIR}sys/firmware/efi/efivars/SecureBoot-* 2> /dev/null)
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if [ -n "${FIND}" ]; then
for FILE in ${FIND}; do
LogText "Test: checking file ${FILE}"
# TODO: add detection for od
J=$(od -An -t u1 ${FILE} | ${AWKBINARY} '{ print $5 }')
if [ "${J}" = "1" ]; then
LogText "Result: found SecureBoot file with enabled status"
UEFI_BOOTED_SECURE=1
else
LogText "Result: system not booted with Secure Boot (status 0 in file ${FILE})"
fi
done
fi
else
LogText "Result: system not booted with Secure Boot (no SecureBoot file found)"
fi
;;
#macOS)
# TODO: macOS ioreg -l -p IODeviceTree | ${GREPBINARY} firmware-abi
#;;
*)
LogText "Result: no test implemented yet to test for UEFI on this platform"
;;
esac
if [ ${UEFI_BOOTED} -eq 1 ]; then
Display --indent 2 --text "- Checking UEFI boot" --result "${STATUS_ENABLED}" --color GREEN
if [ ${UEFI_BOOTED_SECURE} -eq 1 ]; then
Display --indent 2 --text "- Checking Secure Boot" --result "${STATUS_ENABLED}" --color GREEN
else
Display --indent 2 --text "- Checking Secure Boot" --result "${STATUS_DISABLED}" --color YELLOW
fi
else
if [ ${UEFI_TESTS_PERFORMED} -eq 1 ]; then
Display --indent 2 --text "- Checking UEFI boot" --result "${STATUS_DISABLED}" --color WHITE
fi
fi
fi
#
#################################################################################
#
# Test : BOOT-5117
# Description : Check for systemd-boot boot loader
if [ ! "${BOOTCTLBINARY}" = "" -a ${HAS_SYSTEMD} -eq 1 -a ${UEFI_BOOTED} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
Register --test-no BOOT-5117 --preqs-met ${PREQS_MET} --os "Linux" --weight L --network NO --category security --description "Check for systemd-boot bootloader presence"
if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
CURRENT_BOOT_LOADER=$(${BOOTCTLBINARY} status --no-pager 2>/dev/null | ${AWKBINARY} '/Current Boot Loader/{ getline; print $2 }')
if [ "${CURRENT_BOOT_LOADER}" = "systemd-boot" ]; then
Display --indent 2 --text "- Checking systemd-boot presence" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: found systemd-boot"
BOOT_LOADER="systemd-boot"
BOOT_LOADER_FOUND=1
fi
fi
#
#################################################################################
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#
# Test : BOOT-5121
# Description : Check for GRUB boot loader
Register --test-no BOOT-5121 --weight L --network NO --category security --description "Check for GRUB boot loader presence"
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if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
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FOUND=0
LogText "Test: Checking for presence GRUB conf file (/boot/grub/grub.conf or /boot/grub/menu.lst)"
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if [ -f /boot/grub/grub.conf -o -f /boot/grub/menu.lst ]; then
FOUND=1
BOOT_LOADER="GRUB"
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BOOT_LOADER_FOUND=1
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GRUB_VERSION=1
Display --indent 2 --text "- Checking presence GRUB" --result "${STATUS_OK}" --color GREEN
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if [ -f /boot/grub/grub.conf ]; then GRUBCONFFILE="/boot/grub/grub.conf"; else GRUBCONFFILE="/boot/grub/menu.lst"; fi
fi
# GRUB2 configuration file
if [ -f /boot/grub/grub.cfg -o -f /boot/grub2/grub.cfg ]; then
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FOUND=1
BOOT_LOADER="GRUB2"
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BOOT_LOADER_FOUND=1
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GRUB_VERSION=2
Display --indent 2 --text "- Checking presence GRUB2" --result "${STATUS_FOUND}" --color GREEN
if [ -f /boot/grub/grub.cfg ]; then
GRUBCONFFILE="/boot/grub/grub.cfg"
elif [ -f /boot/grub2/grub.cfg ]; then
GRUBCONFFILE="/boot/grub2/grub.cfg"
fi
LogText "Result: found GRUB2 configuration file (${GRUBCONFFILE})"
fi
# Some OSes like Gentoo do not have /boot mounted by default
# TODO: root directory and rewrite ls statement
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if [ -d /boot ]; then
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if [ "$(ls /boot/* 2> /dev/null)" = "" -a -n "${GRUB2INSTALLBINARY}" ]; then
BOOT_LOADER_FOUND=1
LogText "Result: found empty /boot, however with GRUB2 binary installed. Best guess is that GRUB2 is actually installed, but /boot not mounted"
Display --indent 2 --text "- Checking presence GRUB2" --result "POSSIBLE MATCH" --color YELLOW
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ReportManual "${TEST_NO}:01"
fi
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fi
if [ ${FOUND} -eq 0 ]; then
LogText "Result: no GRUB configuration file found."
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fi
fi
#
#################################################################################
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#
# Test : BOOT-5122
# Description : Check for GRUB boot loader configuration
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if [ -n "${GRUBCONFFILE}" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
Register --test-no BOOT-5122 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check for GRUB boot password"
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if [ ${SKIPTEST} -eq 0 ]; then
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FOUND=0
CONF_FILES=$(${FINDBINARY} /etc/grub.d -type f -name "[0-9][0-9]*" -print0 | ${TRBINARY} '\0' ' ' | ${TRBINARY} -d '[:cntrl:]')
CONF_FILES="${GRUBCONFFILE} ${ROOTDIR}boot/grub/custom.cfg ${CONF_FILES}"
for FILE in ${CONF_FILES}; do
if [ -f "${FILE}" ]; then
LogText "Found file ${FILE}, proceeding with tests."
if FileIsReadable "${FILE}"; then
FIND=$(${GREPBINARY} 'password --md5' ${FILE} | ${GREPBINARY} -v '^#')
FIND2=$(${GREPBINARY} 'password --encrypted' ${FILE} | ${GREPBINARY} -v '^#')
FIND3=$(${GREPBINARY} 'set superusers' ${FILE} | ${GREPBINARY} -v '^#')
FIND4=$(${GREPBINARY} 'password_pbkdf2' ${FILE} | ${GREPBINARY} -v '^#')
FIND5=$(${GREPBINARY} 'grub.pbkdf2' ${FILE} | ${GREPBINARY} -v '^#')
# GRUB1: Password should be set (MD5 or SHA1)
if [ -n "${FIND}" -o -n "${FIND2}" ]; then
FOUND=1
# GRUB2: Superusers AND password should be defined
elif [ -n "${FIND3}" ]; then
if [ -n "${FIND4}" -o -n "${FIND5}" ]; then FOUND=1; fi
else
LogText "Result: did not find hashed password line in this file"
fi
else
LogText "Result: Can not read '${FILE}' (no permission?)"
fi
else
LogText "Result: File '${FILE}' does not exist"
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fi
done
if [ ${FOUND} -eq 1 ]; then
Display --indent 4 --text "- Checking for password protection" --result "${STATUS_OK}" --color GREEN
LogText "Result: GRUB has password protection."
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AddHP 4 4
else
Display --indent 4 --text "- Checking for password protection" --result "${STATUS_NONE}" --color RED
LogText "Result: Didn't find hashed password line in GRUB configuration"
ReportSuggestion "${TEST_NO}" "Set a password on GRUB boot loader to prevent altering boot configuration (e.g. boot in single user mode without password)"
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AddHP 0 2
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fi
unset CONF_FILES FILE FIND FIND2 FIND3 FIND4 FIND5 FOUND
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fi
#
#################################################################################
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#
# Test : BOOT-5124
# Description : Check for FreeBSD boot loader
Register --test-no BOOT-5124 --os FreeBSD --weight L --network NO --category security --description "Check for FreeBSD boot loader presence"
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if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
if [ -f ${ROOTDIR}boot/boot1 -a -f ${ROOTDIR}boot/boot2 -a -f ${ROOTDIR}boot/loader ]; then
LogText "Result: found boot1, boot2 and loader files in ${ROOTDIR}boot"
Display --indent 2 --text "- Checking presence FreeBSD loader" --result "${STATUS_FOUND}" --color GREEN
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BOOT_LOADER="FreeBSD"
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BOOT_LOADER_FOUND=1
else
LogText "Result: Not all expected files found in ${ROOTDIR}boot"
fi
fi
#
#################################################################################
#
# Test : BOOT-5261
# Description : Check for DragonFly boot loader
Register --test-no BOOT-5261 --os DragonFly --weight L --network NO --category security --description "Check for DragonFly boot loader presence"
if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
if [ -f ${ROOTDIR}boot/boot1 -a -f ${ROOTDIR}boot/boot2 -a -f ${ROOTDIR}boot/loader ]; then
LogText "Result: found boot1, boot2 and loader files in ${ROOTDIR}boot"
Display --indent 2 --text "- Checking presence DragonFly loader" --result "${STATUS_FOUND}" --color GREEN
BOOT_LOADER="DragonFly"
BOOT_LOADER_FOUND=1
else
LogText "Result: Not all expected files found in ${ROOTDIR}boot"
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fi
fi
#
#################################################################################
#
# Test : BOOT-5126
# Description : Check for NetBSD boot loader
Register --test-no BOOT-5126 --os NetBSD --weight L --network NO --category security --description "Check for NetBSD boot loader presence"
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if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
if [ -f ${ROOTDIR}boot.${HARDWARE} -o -f ${ROOTDIR}boot -o -f ${ROOTDIR}ofwboot ]; then
LogText "Result: found NetBSD secondary bootstrap"
Display --indent 2 --text "- Checking presence NetBSD loader" --result "${STATUS_FOUND}" --color GREEN
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BOOT_LOADER="NetBSD"
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BOOT_LOADER_FOUND=1
else
LogText "Result: NetBSD secondary bootstrap not found"
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ReportException "${TEST_NO}:1" "No boot loader found on NetBSD"
fi
fi
#
#################################################################################
#
# Test : BOOT-5139
# Description : Check for LILO boot loader
# Notes : password= or password =
Register --test-no BOOT-5139 --weight L --network NO --category security --description "Check for LILO boot loader presence"
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if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
LILOCONFFILE="${ROOTDIR}etc/lilo.conf"
LogText "Test: checking for presence LILO configuration file"
if [ -f ${LILOCONFFILE} ]; then
FileIsReadable ${LILOCONFFILE}
if [ ${CANREAD} -eq 1 ]; then
BOOT_LOADER="LILO"
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BOOT_LOADER_FOUND=1
Display --indent 2 --text "- Checking presence LILO" --result "${STATUS_OK}" --color GREEN
LogText "Checking password option LILO"
FIND=$(${EGREPBINARY} 'password[[:space:]]?=' ${LILOCONFFILE} | ${GREPBINARY} -v "^#")
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if [ -z "${FIND}" ]; then
if [ "${MACHINE_ROLE}" = "server" -o "${MACHINE_ROLE}" = "workstation" ]; then
Display --indent 4 --text "- Password option presence " --result "${STATUS_WARNING}" --color RED
LogText "Result: no password set for LILO. Bootloader is unprotected to dropping to single user mode or unauthorized access to devices/data."
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ReportSuggestion "${TEST_NO}" "Add a password to LILO, by adding a line to the lilo.conf file, above the first line saying 'image=<name>': password=<password>"
ReportWarning "${TEST_NO}" "No password set on LILO bootloader"
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AddHP 0 2
Lots of cleanups (#366) * Description fix: SafePerms works on files not dirs. All uses of SafePerms are on files (and indeed, it would reject directories which would have +x set). * Lots of whitespace cleanups. Enforce everywhere(?) the same indentations for if/fi blocks. The standard for the Lynis codebase is 4 spaces. But sometimes it's 1, sometimes 3, sometimes 8. These patches standardize all(?) if blocks but _not_ else's (which are usually indented 2, but sometimes zero); I was too lazy to identify those (see below). This diff is giant, but should not change code behavior at all; diff -w shows no changes apart from whitespace. FWIW I identified instances to check by using: perl -ne 'if ($oldfile ne $ARGV) { $.=1; $oldfile=$ARGV; }; chomp; if ($spaces) { next unless /^( *)([^ ]+)/; $newspaces=length($1); $firsttok = $2; next unless defined($firsttok); $offset = ($firsttok eq "elif" ? 0 : 4); if ($newspaces != $spaces + $offset) { print "$ARGV:$ifline\n$ARGV:$.:$_\n\n" }; $ifline=""; $spaces=""; } if (/^( *)if (?!.*[; ]fi)/) { $ifline = "$.:$_"; $spaces = length($1); }' $(find . -type f -print0 | xargs -0 file | egrep shell | cut -d: -f1) Which produced output like: ./extras/build-lynis.sh:217: if [ ${VERSION_IN_SPECFILE} = "" -o ! "${VERSION_IN_SPECFILE}" = "${LYNIS_VERSION}" ]; then ./extras/build-lynis.sh:218: echo "[X] Version in specfile is outdated" ./plugins/plugin_pam_phase1:69: if [ -d ${PAM_DIRECTORY} ]; then ./plugins/plugin_pam_phase1:70: LogText "Result: /etc/pam.d exists" ...There's probably formal shellscript-beautification tools that I'm oblivious about. * More whitespace standardization. * Fix a syntax error. This looks like an if [ foo -o bar ]; was converted to if .. elif, but incompletely. * Add whitespace before closing ]. Without it, the shell thinks the ] is part of the last string, and emits warnings like: .../lynis/include/tests_authentication: line 1028: [: missing `]'
2017-03-07 20:23:08 +01:00
elif [ "${MACHINE_ROLE}" = "personal" ]; then
Display --indent 4 --text "- Password option presence " --result "${STATUS_WARNING}" --color yellow
LogText "Result: no password set for LILO. Bootloader is unprotected to dropping to single user mode or unauthorized access to devices/data."
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ReportSuggestion "${TEST_NO}" "No password set on LILO bootloader. Add a password to LILO, by adding a line to the lilo.conf file, above the first line saying 'image=<name>': password=<password>"
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AddHP 1 2
else
LogText "Result: no password set for LILO, with unknown machine role"
fi
else
Display --indent 4 --text "- Password option presence " --result "${STATUS_OK}" --color GREEN
LogText "Result: LILO password option set"
AddHP 4 4
fi
else
LogText "Result: can not read ${LILOCONFFILE} (no permission)"
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fi
else
LogText "Result: LILO configuration file not found"
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fi
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fi
#
#################################################################################
#
# Test : BOOT-5142
# Description : Check for SILO boot loader
Register --test-no BOOT-5142 --weight L --network NO --category security --description "Check SPARC Improved boot loader (SILO)"
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if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
if [ -f ${ROOTDIR}etc/silo.conf ]; then
LogText "Result: Found SILO configuration file (/etc/silo.conf)"
Display --indent 2 --text "- Checking boot loader SILO" --result "${STATUS_FOUND}" --color GREEN
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BOOT_LOADER="SILO"
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BOOT_LOADER_FOUND=1
else
LogText "Result: no SILO configuration file found."
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fi
fi
#
#################################################################################
#
# Test : BOOT-5155
# Description : Check for YABOOT boot loader
Register --test-no BOOT-5155 --weight L --network NO --category security --description "Check for YABOOT boot loader configuration file"
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if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
LogText "Test: Check for /etc/yaboot.conf"
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if [ -f /etc/yaboot.conf ]; then
LogText "Result: Found YABOOT configuration file (/etc/yaboot.conf)"
Display --indent 4 --text "- Checking boot loader YABOOT" --result "${STATUS_FOUND}" --color GREEN
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BOOT_LOADER="YABOOT"
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BOOT_LOADER_FOUND=1
else
LogText "Result: no YABOOT configuration file found."
2014-08-26 17:33:55 +02:00
fi
fi
#
#################################################################################
#
# Test : BOOT-5159
# Description : Check for OpenBSD boot loader
# More info : Only OpenBSD
Register --test-no BOOT-5159 --os OpenBSD --weight L --network NO --category security --description "Check for OpenBSD boot loader presence"
2014-08-26 17:33:55 +02:00
if [ ${SKIPTEST} -eq 0 ]; then
BOOT_LOADER_SEARCHED=1
FOUND=0
# Boot files
# /usr/mdec/biosboot: first stage bootstrap
# /boot : second stage bootstrap
if [ -f ${ROOTDIR}usr/mdec/biosboot -a -f ${ROOTDIR}boot ]; then
FOUND=1
fi
# Configuration file
if [ -f ${ROOTDIR}etc/boot.conf ]; then
FOUND=1
Display --indent 2 --text "- Checking ${ROOTDIR}etc/boot.conf" --result "${STATUS_FOUND}" --color GREEN
FIND=$(${GREPBINARY} '^boot' ${ROOTDIR}etc/boot.conf)
if [ -z "${FIND}" ]; then
Display --indent 4 --text "- Checking boot option" --result "${STATUS_WARNING}" --color RED
2019-12-18 12:17:46 +01:00
#ReportSuggestion "${TEST_NO}" "Add 'boot' to the ${ROOTDIR}etc/boot.conf file to disable the default 5 seconds waiting time, to disallow booting into single user mode."
ReportWarning "${TEST_NO}" "System can be booted into single user mode without password"
else
Display --indent 4 --text "- Checking boot option" --result "${STATUS_OK}" --color GREEN
LogText "Ok, boot option is enabled."
2014-08-26 17:33:55 +02:00
fi
else
Display --indent 2 --text "- Checking ${ROOTDIR}etc/boot.conf" --result "${STATUS_NOT_FOUND}" --color YELLOW
LogText "Result: no ${ROOTDIR}etc/boot.conf found. When using the default boot loader, physical"
LogText "access to the server can be used to possibly enter single user mode."
2019-12-18 12:17:46 +01:00
ReportSuggestion "${TEST_NO}" "Add 'boot' to the ${ROOTDIR}etc/boot.conf file to disable the default 5 seconds waiting time."
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fi
if [ ${FOUND} -eq 1 ]; then
LogText "Result: found OpenBSD boot loader"
BOOT_LOADER="OpenBSD"
BOOT_LOADER_FOUND=1
fi
2014-08-26 17:33:55 +02:00
fi
#
#################################################################################
2014-09-22 23:39:31 +02:00
#
if [ ${BOOT_LOADER_FOUND} -eq 0 -a ${BOOT_LOADER_SEARCHED} -eq 1 ]; then
2014-09-22 23:39:31 +02:00
# Your boot loader is not detected. Want to help supporting it, see the README
2016-10-19 10:07:11 +02:00
# ReportException "BOOTLOADER" "No boot loader found"
Display --indent 4 --text "- Boot loader" --result "NONE FOUND" --color YELLOW
2014-09-22 23:39:31 +02:00
fi
#
#################################################################################
2014-08-26 17:33:55 +02:00
#
# Test : BOOT-5165
# Description : Check for FreeBSD boot services
Register --test-no BOOT-5165 --os FreeBSD --weight L --network NO --category security --description "Check for FreeBSD boot services"
2014-08-26 17:33:55 +02:00
if [ ${SKIPTEST} -eq 0 ]; then
if HasData "${SERVICEBINARY}"; then
Used service(8) to discover running services. On all supported FreeBSD releases, the service(8) program can be used to discover which services are running. This program has been added to the test for binaries. If available, it will be used to test for services. If not, the original code that parses /etc/rc.conf is used. On my system, the following information is produced in the logfile: [19:51:22] Performing test ID BOOT-5165 (Check for FreeBSD boot services) [19:51:22] Searching for services at startup (service) [19:51:23] Found service (service/rc.conf): bgfsck [19:51:23] Found service (service/rc.conf): cleanvar [19:51:23] Found service (service/rc.conf): cron [19:51:23] Found service (service/rc.conf): cupsd [19:51:23] Found service (service/rc.conf): dbus [19:51:23] Found service (service/rc.conf): devd [19:51:23] Found service (service/rc.conf): dmesg [19:51:23] Found service (service/rc.conf): dnsmasq [19:51:23] Found service (service/rc.conf): gptboot [19:51:23] Found service (service/rc.conf): hostid [19:51:23] Found service (service/rc.conf): hostid_save [19:51:23] Found service (service/rc.conf): ip6addrctl [19:51:23] Found service (service/rc.conf): ipfw [19:51:23] Found service (service/rc.conf): mixer [19:51:23] Found service (service/rc.conf): motd [19:51:23] Found service (service/rc.conf): newsyslog [19:51:23] Found service (service/rc.conf): nginx [19:51:23] Found service (service/rc.conf): openntpd [19:51:23] Found service (service/rc.conf): postfix [19:51:23] Found service (service/rc.conf): powerd [19:51:23] Found service (service/rc.conf): sendmail [19:51:23] Found service (service/rc.conf): smartd [19:51:23] Found service (service/rc.conf): syslogd [19:51:23] Found service (service/rc.conf): virecover [19:51:23] Found 24 services/options to run at startup The report shows: [+] Boot and services ------------------------------------ - Service Manager [ UNKNOWN ] - Checking presence FreeBSD loader [ FOUND ] - Checking services at startup (service/rc.conf) [ DONE ] Result: found 24 services/options set
2015-04-27 19:58:07 +02:00
# FreeBSD (Ask services(8) for enabled services)
LogText "Searching for services at startup (service)"
FIND=$(${SERVICEBINARY} -e | ${SEDBINARY} 's|^.*\/||' | ${SORTBINARY})
Used service(8) to discover running services. On all supported FreeBSD releases, the service(8) program can be used to discover which services are running. This program has been added to the test for binaries. If available, it will be used to test for services. If not, the original code that parses /etc/rc.conf is used. On my system, the following information is produced in the logfile: [19:51:22] Performing test ID BOOT-5165 (Check for FreeBSD boot services) [19:51:22] Searching for services at startup (service) [19:51:23] Found service (service/rc.conf): bgfsck [19:51:23] Found service (service/rc.conf): cleanvar [19:51:23] Found service (service/rc.conf): cron [19:51:23] Found service (service/rc.conf): cupsd [19:51:23] Found service (service/rc.conf): dbus [19:51:23] Found service (service/rc.conf): devd [19:51:23] Found service (service/rc.conf): dmesg [19:51:23] Found service (service/rc.conf): dnsmasq [19:51:23] Found service (service/rc.conf): gptboot [19:51:23] Found service (service/rc.conf): hostid [19:51:23] Found service (service/rc.conf): hostid_save [19:51:23] Found service (service/rc.conf): ip6addrctl [19:51:23] Found service (service/rc.conf): ipfw [19:51:23] Found service (service/rc.conf): mixer [19:51:23] Found service (service/rc.conf): motd [19:51:23] Found service (service/rc.conf): newsyslog [19:51:23] Found service (service/rc.conf): nginx [19:51:23] Found service (service/rc.conf): openntpd [19:51:23] Found service (service/rc.conf): postfix [19:51:23] Found service (service/rc.conf): powerd [19:51:23] Found service (service/rc.conf): sendmail [19:51:23] Found service (service/rc.conf): smartd [19:51:23] Found service (service/rc.conf): syslogd [19:51:23] Found service (service/rc.conf): virecover [19:51:23] Found 24 services/options to run at startup The report shows: [+] Boot and services ------------------------------------ - Service Manager [ UNKNOWN ] - Checking presence FreeBSD loader [ FOUND ] - Checking services at startup (service/rc.conf) [ DONE ] Result: found 24 services/options set
2015-04-27 19:58:07 +02:00
else
# FreeBSD (Read /etc/rc.conf file for enabled services)
LogText "Searching for services at startup (rc.conf)"
FIND=$(${EGREPBINARY} -v -i '^#|none' ${ROOTDIR}etc/rc.conf | ${EGREPBINARY} -i '_enable.*(yes|on|1)' | ${SORTBINARY} | ${AWKBINARY} -F= '{ print $1 }' | ${SEDBINARY} 's/_enable//')
Used service(8) to discover running services. On all supported FreeBSD releases, the service(8) program can be used to discover which services are running. This program has been added to the test for binaries. If available, it will be used to test for services. If not, the original code that parses /etc/rc.conf is used. On my system, the following information is produced in the logfile: [19:51:22] Performing test ID BOOT-5165 (Check for FreeBSD boot services) [19:51:22] Searching for services at startup (service) [19:51:23] Found service (service/rc.conf): bgfsck [19:51:23] Found service (service/rc.conf): cleanvar [19:51:23] Found service (service/rc.conf): cron [19:51:23] Found service (service/rc.conf): cupsd [19:51:23] Found service (service/rc.conf): dbus [19:51:23] Found service (service/rc.conf): devd [19:51:23] Found service (service/rc.conf): dmesg [19:51:23] Found service (service/rc.conf): dnsmasq [19:51:23] Found service (service/rc.conf): gptboot [19:51:23] Found service (service/rc.conf): hostid [19:51:23] Found service (service/rc.conf): hostid_save [19:51:23] Found service (service/rc.conf): ip6addrctl [19:51:23] Found service (service/rc.conf): ipfw [19:51:23] Found service (service/rc.conf): mixer [19:51:23] Found service (service/rc.conf): motd [19:51:23] Found service (service/rc.conf): newsyslog [19:51:23] Found service (service/rc.conf): nginx [19:51:23] Found service (service/rc.conf): openntpd [19:51:23] Found service (service/rc.conf): postfix [19:51:23] Found service (service/rc.conf): powerd [19:51:23] Found service (service/rc.conf): sendmail [19:51:23] Found service (service/rc.conf): smartd [19:51:23] Found service (service/rc.conf): syslogd [19:51:23] Found service (service/rc.conf): virecover [19:51:23] Found 24 services/options to run at startup The report shows: [+] Boot and services ------------------------------------ - Service Manager [ UNKNOWN ] - Checking presence FreeBSD loader [ FOUND ] - Checking services at startup (service/rc.conf) [ DONE ] Result: found 24 services/options set
2015-04-27 19:58:07 +02:00
fi
COUNT=0
for ITEM in ${FIND}; do
LogText "Found service (service/rc.conf): ${ITEM}"
Report "boottask[]=${ITEM}"
COUNT=$((COUNT + 1))
2014-08-26 17:33:55 +02:00
done
Display --indent 2 --text "- Checking services at startup (service/rc.conf)" --result "${STATUS_DONE}" --color GREEN
Display --indent 6 --text "Result: found ${COUNT} services/options set"
LogText "Found ${COUNT} services/options to run at startup"
2014-08-26 17:33:55 +02:00
fi
#
#################################################################################
#
# Test : BOOT-5177
# Description : Check for Linux boot services (systemd and chkconfig)
# Notes : We skip using chkconfig if systemd is being used.
Register --test-no BOOT-5177 --os Linux --weight L --network NO --category security --description "Check for Linux boot and running services"
2014-08-26 17:33:55 +02:00
if [ ${SKIPTEST} -eq 0 ]; then
CHECKED=0
LogText "Test: checking presence systemctl binary"
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# Determine if we have systemctl on board
if HasData "${SYSTEMCTLBINARY}"; then
LogText "Result: systemctl binary found, trying that to discover information"
2014-08-26 17:33:55 +02:00
# Running services
LogText "Searching for running services (systemctl services only)"
FIND=$(${SYSTEMCTLBINARY} --no-legend --full --type=service --state=running | ${AWKBINARY} -F.service '{ print $1 }')
COUNT=0
Report "running_service_tool=systemctl"
for ITEM in ${FIND}; do
LogText "Found running service: ${ITEM}"
Report "running_service[]=${ITEM}"
COUNT=$((COUNT + 1))
2014-08-26 17:33:55 +02:00
done
2018-12-14 13:17:46 +01:00
LogText "Hint: Run systemctl --full --type=service to see all services"
Display --indent 2 --text "- Check running services (systemctl)" --result "${STATUS_DONE}" --color GREEN
Display --indent 8 --text "Result: found ${COUNT} running services"
LogText "Result: Found ${COUNT} running services"
2014-08-26 17:33:55 +02:00
# Services at boot
LogText "Searching for enabled services (systemctl services only)"
FIND=$(${SYSTEMCTLBINARY} list-unit-files --no-legend --type=service --state=enabled | ${SORTBINARY} -u | ${AWKBINARY} -F.service '{ print $1 }')
COUNT=0
Report "boot_service_tool=systemctl"
for ITEM in ${FIND}; do
LogText "Found enabled service at boot: ${ITEM}"
Report "boot_service[]=${ITEM}"
COUNT=$((COUNT + 1))
2014-08-26 17:33:55 +02:00
done
2018-12-14 13:17:46 +01:00
LogText "Hint: Run systemctl list-unit-files --type=service to see all services"
Display --indent 2 --text "- Check enabled services at boot (systemctl)" --result "${STATUS_DONE}" --color GREEN
Display --indent 8 --text "Result: found ${COUNT} enabled services"
LogText "Result: Found ${COUNT} enabled services"
2014-08-26 17:33:55 +02:00
else
LogText "Result: systemctl binary not found, checking chkconfig binary"
2019-07-16 13:20:30 +02:00
if [ -n "${CHKCONFIGBINARY}" ]; then
LogText "Result: chkconfig binary found, trying that to discover information"
LogText "Searching for services at startup (chkconfig, runlevel 3 and 5)"
FIND=$(${CHKCONFIGBINARY} --list | ${EGREPBINARY} '3:on|5:on' | ${AWKBINARY} '{ print $1 }')
COUNT=0
Report "boot_service_tool=chkconfig"
for ITEM in ${FIND}; do
LogText "Found service (at boot, runlevel 3 or 5): ${ITEM}"
Report "boot_service[]=${ITEM}"
COUNT=$((COUNT + 1))
2014-08-26 17:33:55 +02:00
done
LogText "Hint: Run chkconfig --list to see all services and disable unneeded services"
Display --indent 2 --text "- Check services at startup (chkconfig)" --result "${STATUS_DONE}" --color GREEN
Display --indent 8 --text "Result: found ${COUNT} services"
LogText "Result: Found ${COUNT} services at startup"
else
LogText "Result: both systemctl and chkconfig not found. Skipping this test"
2014-08-26 17:33:55 +02:00
fi
fi
fi
#
#################################################################################
#
# Test : BOOT-5180
# Description : Check for Linux boot services (Debian style)
# Notes : Debian 8+ shows runlevel 5
2014-08-26 17:33:55 +02:00
if [ "${LINUX_VERSION}" = "Debian" -o "${LINUX_VERSION}" = "Ubuntu" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
Register --test-no BOOT-5180 --os Linux --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check for Linux boot services (Debian style)"
2014-08-26 17:33:55 +02:00
if [ ${SKIPTEST} -eq 0 ]; then
2015-07-22 16:28:11 +02:00
# Runlevel check
sRUNLEVEL=$(${RUNLEVELBINARY} | ${GREPBINARY} "N [0-9]" | ${AWKBINARY} '{ print $2} ')
LogText "Result: found runlevel ${sRUNLEVEL}"
if [ "${sRUNLEVEL}" = "2" ]; then
LogText "Result: performing find in /etc/rc2.d as runlevel 2 is found"
FIND=$(${FINDBINARY} ${ROOTDIR}etc/rc2.d -type l -print | ${CUTBINARY} -d '/' -f4 | ${SEDBINARY} "s/S[0-9][0-9]//g" | sort)
2019-07-16 13:20:30 +02:00
if [ -n "${FIND}" ]; then
COUNT=0
for SERVICE in ${FIND}; do
LogText "Found service (at boot, runlevel 2): ${SERVICE}"
COUNT=$((COUNT + 1))
2014-08-26 17:33:55 +02:00
done
Display --indent 2 --text "- Check services at startup (rc2.d)" --result "${STATUS_DONE}" --color WHITE
Display --indent 4 --text "Result: found ${COUNT} services"
LogText "Result: found ${COUNT} services"
2014-08-26 17:33:55 +02:00
fi
elif [ -z "${sRUNLEVEL}" ]; then
2019-12-18 12:17:46 +01:00
ReportSuggestion "${TEST_NO}" "Determine runlevel and services at startup"
else
LogText "Result: skipping further actions"
2014-08-26 17:33:55 +02:00
fi
fi
#
#################################################################################
#
# Test : BOOT-5184
# Description : Check world writable startup scripts
Register --test-no BOOT-5184 --os Linux --weight L --network NO --category security --description "Check permissions for boot files/scripts"
2014-08-26 17:33:55 +02:00
if [ ${SKIPTEST} -eq 0 ]; then
FOUND=0
CHECKDIRS="${ROOTDIR}etc/init.d ${ROOTDIR}etc/rc.d ${ROOTDIR}etc/rcS.d"
2014-08-26 17:33:55 +02:00
LogText "Result: checking ${ROOTDIR}etc/init.d scripts for writable bit"
for DIR in ${CHECKDIRS}; do
LogText "Test: checking if directory ${DIR} exists"
if [ -d ${DIR} ]; then
LogText "Result: directory ${DIR} found"
LogText "Test: checking for available files in directory"
FIND=$(${FINDBINARY} ${DIR} -type f -print | ${SORTBINARY})
2019-07-16 13:20:30 +02:00
if [ -n "${FIND}" ]; then
LogText "Result: found files in directory, checking permissions now"
for FILE in ${FIND}; do
LogText "Test: checking permissions of file ${FILE}"
if IsWorldWritable ${FILE}; then
2014-08-26 17:33:55 +02:00
FOUND=1
LogText "Result: warning, file ${FILE} is world writable"
else
LogText "Result: good, file ${FILE} not world writable"
2014-08-26 17:33:55 +02:00
fi
done
else
LogText "Result: found no files in directory."
2014-08-26 17:33:55 +02:00
fi
else
LogText "Result: directory ${DIR} not found. Skipping.."
2014-08-26 17:33:55 +02:00
fi
done
# /etc/rc[0-6].d
for NO in 0 1 2 3 4 5 6; do
LogText "Test: Checking ${ROOTDIR}etc/rc${NO}.d scripts for writable bit"
if [ -d ${ROOTDIR}etc/rc${NO}.d ]; then
FIND=$(${FINDBINARY} ${ROOTDIR}etc/rc${NO}.d -type f -print | ${SORTBINARY})
2014-08-26 17:33:55 +02:00
for I in ${FIND}; do
if IsWorldWritable ${I}; then
2014-08-26 17:33:55 +02:00
FOUND=1
LogText "Result: warning, file ${I} is world writable"
else
LogText "Result: good, file ${I} not world writable"
2014-08-26 17:33:55 +02:00
fi
done
fi
done
# Other files
CHECKFILES="${ROOTDIR}etc/rc ${ROOTDIR}etc/rc.local ${ROOTDIR}etc/rc.d/rc.sysinit"
2014-08-26 17:33:55 +02:00
for I in ${CHECKFILES}; do
if [ -f ${I} ]; then
2016-05-02 13:23:43 +02:00
ShowSymlinkPath "${I}"
if [ ${FOUNDPATH} -eq 1 ]; then
CHECKFILE="${SYMLINK}"
2016-05-02 13:23:43 +02:00
LogText "Result: found the path behind this symlink (${CHECKFILE} --> ${I})"
else
CHECKFILE="${I}"
2016-05-02 13:23:43 +02:00
fi
LogText "Test: Checking ${CHECKFILE} file for writable bit"
if IsWorldWritable ${CHECKFILE}; then
2014-08-26 17:33:55 +02:00
FOUND=1
2019-12-18 12:17:46 +01:00
ReportWarning "${TEST_NO}" "Found writable startup script ${CHECKFILE}"
2016-05-02 13:23:43 +02:00
LogText "Result: warning, file ${CHECKFILE} is world writable"
else
2016-05-02 13:23:43 +02:00
LogText "Result: good, file ${CHECKFILE} not world writable"
2014-08-26 17:33:55 +02:00
fi
fi
done
# Check results
if [ ${FOUND} -eq 1 ]; then
Display --indent 2 --text "- Check startup files (permissions)" --result "${STATUS_WARNING}" --color RED
2019-12-18 12:17:46 +01:00
ReportWarning "${TEST_NO}" "Found world writable startup scripts" "-" "-"
LogText "Result: found one or more scripts which are possibly writable by other users"
2014-08-26 17:33:55 +02:00
AddHP 0 3
else
Display --indent 2 --text "- Check startup files (permissions)" --result "${STATUS_OK}" --color GREEN
2014-08-26 17:33:55 +02:00
AddHP 3 3
fi
fi
#
#################################################################################
#
# Test : BOOT-5202
# Description : Check uptime of system
Register --test-no BOOT-5202 --weight L --network NO --category security --description "Check uptime of system"
2014-08-26 17:33:55 +02:00
if [ ${SKIPTEST} -eq 0 ]; then
FOUND=0
FIND=""
UPTIME_IN_SECS=""
2014-08-26 17:33:55 +02:00
case "${OS}" in
Linux)
# Idle time, not real uptime
if [ -f /proc/uptime ]; then
2019-09-19 14:05:15 +02:00
UPTIME_IN_SECS=$(${CUTBINARY} -d ' ' -f1 /proc/uptime | ${CUTBINARY} -d '.' -f1)
else
Display --indent 2 --text "- Checking uptime" --result "${STATUS_SKIPPED}" --color YELLOW
ReportException "${TEST_NO}:1" "No uptime test available for this operating system (/proc/uptime missing)"
fi
2019-09-19 14:05:15 +02:00
;;
2019-09-19 14:05:15 +02:00
DragonFly | FreeBSD | macOS)
2019-07-16 13:20:30 +02:00
if [ -n "${SYSCTLBINARY}" ]; then
TIME_BOOT=$(${SYSCTLBINARY} kern.boottime | ${AWKBINARY} '{ print $5 }' | ${SEDBINARY} -e 's/,//' | ${GREPBINARY} "[0-9]")
TIME_NOW=$(date "+%s")
LogText "Boot time: ${TIME_BOOT}"
LogText "Current time: ${TIME_NOW}"
2019-07-16 13:20:30 +02:00
if [ -n "${TIME_BOOT}" -a -n "${TIME_NOW}" ]; then
UPTIME_IN_SECS=$((TIME_NOW - TIME_BOOT))
else
ReportException "${TEST_NO}:5" "Most likely kern.boottime empty, unable to determine uptime"
fi
else
Display --indent 2 --text "- Checking uptime" --result "${STATUS_SKIPPED}" --color YELLOW
ReportException "${TEST_NO}:4" "No uptime test available for this operating system (sysctl missing)"
fi
2019-09-19 14:05:15 +02:00
;;
2019-09-19 14:05:15 +02:00
NetBSD | OpenBSD)
2019-07-16 13:20:30 +02:00
if [ -n "${SYSCTLBINARY}" ]; then
TIME_BOOT=$(${SYSCTLBINARY} -n kern.boottime)
TIME_NOW=$(date "+%s")
LogText "Boot time: ${TIME_BOOT}"
LogText "Current time: ${TIME_NOW}"
2019-07-16 13:20:30 +02:00
if [ -n "${TIME_BOOT}" -a -n "${TIME_NOW}" ]; then
UPTIME_IN_SECS=$((TIME_NOW - TIME_BOOT))
else
ReportException "${TEST_NO}:5" "Most likely kern.boottime empty, unable to determine uptime"
fi
else
Display --indent 2 --text "- Checking uptime" --result "${STATUS_SKIPPED}" --color YELLOW
ReportException "${TEST_NO}:4" "No uptime test available for this operating system (sysctl missing)"
fi
2019-09-19 14:05:15 +02:00
;;
2014-09-25 19:00:36 +02:00
2014-08-26 17:33:55 +02:00
Solaris)
2019-07-16 13:20:30 +02:00
if [ -n "${KSTATBINARY}" ]; then
UPTIME_IN_SECS=$(${KSTATBINARY} -p unix:0:system_misc:snaptime | ${GREPBINARY} "^unix" | ${AWKBINARY} '{print $2}' | ${CUTBINARY} -d "." -f1)
else
Display --indent 2 --text "- Checking uptime" --result "${STATUS_SKIPPED}" --color YELLOW
ReportException "${TEST_NO}:2" "No uptime test available for this operating system (kstat missing)"
fi
2019-09-19 14:05:15 +02:00
;;
2014-08-26 17:33:55 +02:00
*)
Display --indent 2 --text "- Checking uptime" --result "${STATUS_SKIPPED}" --color YELLOW
2014-08-26 17:33:55 +02:00
# Want to help improving Lynis? Share your operating system and a way to determine the uptime (in seconds)
ReportException "${TEST_NO}:3" "No uptime test available yet for this operating system"
2019-09-19 14:05:15 +02:00
;;
2014-08-26 17:33:55 +02:00
esac
2019-09-19 14:05:15 +02:00
2019-07-16 13:20:30 +02:00
if [ -n "${UPTIME_IN_SECS}" ]; then
UPTIME_IN_DAYS=$((UPTIME_IN_SECS / 60 / 60 / 24))
LogText "Uptime (in seconds): ${UPTIME_IN_SECS}"
LogText "Uptime (in days): ${UPTIME_IN_DAYS}"
Report "uptime_in_seconds=${UPTIME_IN_SECS}"
Report "uptime_in_days=${UPTIME_IN_DAYS}"
else
LogText "Result: no uptime information available"
2014-08-26 17:33:55 +02:00
fi
fi
#
#################################################################################
#
# Test : BOOT-5260
# Description : Check single user mode for systemd
Register --test-no BOOT-5260 --os Linux --weight L --network NO --category security --description "Check single user mode for systemd"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Searching /usr/lib/systemd/system/rescue.service"
if [ -f ${ROOTDIR}usr/lib/systemd/system/rescue.service ]; then
LogText "Result: file /usr/lib/systemd/system/rescue.service"
LogText "Test: checking presence sulogin for single user mode"
FIND=$(${EGREPBINARY} "^ExecStart=.*sulogin" ${ROOTDIR}usr/lib/systemd/system/rescue.service)
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if [ -n "${FIND}" ]; then
FOUND=1
LogText "Result: found sulogin, so single user is protected"
AddHP 3 3
else
LogText "Result: did not find sulogin in rescue.service"
AddHP 1 3
Display --indent 2 --text "- Checking sulogin in rescue.service" --result "${STATUS_NOT_FOUND}" --color YELLOW
ReportSuggestion "${TEST_NO}" "Protect rescue.service by using sulogin"
fi
else
LogText "Result: file ${ROOTDIR}usr/lib/systemd/system/rescue.service does not exist"
fi
fi
#
#################################################################################
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#
# Test : BOOT-5262
# Description : Check for OpenBSD boot daemons
Register --test-no BOOT-5262 --os OpenBSD --weight L --network NO --category security --description "Check for OpenBSD boot daemons"
if [ ${SKIPTEST} -eq 0 ]; then
if HasData "${RCCTLBINARY}"; then
LogText "Result: rcctl binary found, trying that to discover information"
# OpenBSD (Ask rcctl(8) for running daemons)
LogText "Searching for running daemons (rcctl)"
FIND=$(${RCCTLBINARY} ls started)
COUNT=0
Report "running_service_tool=rcctl"
for ITEM in ${FIND}; do
LogText "Found running daemon: ${ITEM}"
Report "running_service[]=${ITEM}"
COUNT=$((COUNT + 1 ))
done
LogText "Note: Run rcctl ls all | egrep '^(pf|check_quotas|library_aslr)$' to see all daemons"
Display --indent 2 --text "- Check running daemons (rcctl)" --result "${STATUS_DONE}" --color GREEN
Display --indent 8 --text "Result: found ${COUNT} running daemons"
LogText "Result: Found ${COUNT} running daemons"
# OpenBSD (Ask rcctl(8) for enabled daemons)
LogText "Searching for enabled daemons (rcctl)"
FIND=$(${RCCTLBINARY} ls on | ${EGREPBINARY} -v '^(pf|check_quotas|library_aslr)$')
COUNT=0
Report "boot_service_tool=rcctl"
for ITEM in ${FIND}; do
LogText "Found enabled daemon at boot: ${ITEM}"
Report "boot_service[]=${ITEM}"
COUNT=$((COUNT + 1 ))
done
LogText "Note: Run rcctl ls all | egrep '^(pf|check_quotas|library_aslr)$' to see all daemons"
Display --indent 2 --text "- Check enabled daemons at boot (rcctl)" --result "${STATUS_DONE}" --color GREEN
Display --indent 8 --text "Result: found ${COUNT} enabled daemons at boot"
LogText "Result: Found ${COUNT} enabled daemons at boot"
fi
fi
#
#################################################################################
#
# Test : BOOT-5263
# Description : Check OpenBSD world writable startup scripts
Register --test-no BOOT-5263 --os OpenBSD --weight L --network NO --category security --description "Check permissions for boot files/scripts"
if [ ${SKIPTEST} -eq 0 ]; then
FOUND=0
CHECKDIR="${ROOTDIR}etc/rc.d"
LogText "Result: checking ${ROOTDIR}etc/rc.d scripts for writable bit"
LogText "Test: checking if directory ${DIR} exists"
if [ -d ${CHECKDIR} ]; then
LogText "Result: directory ${DIR} found"
LogText "Test: checking for available files in directory"
# OpenBSD uses symlinks to create another instance of daemons
FIND=$(${FINDBINARY} ${CHECKDIR} \( -type f -o -type l \) -print | ${SORTBINARY})
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if [ -n "${FIND}" ]; then
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LogText "Result: found files in directory, checking permissions now"
for FILE in ${FIND}; do
LogText "Test: checking permissions of file ${FILE}"
ShowSymlinkPath "${FILE}"
if [ ${FOUNDPATH} -eq 1 ]; then
CHECKFILE="${SYMLINK}"
LogText "Result: found the path behind this symlink (${CHECKFILE} --> ${FILE})"
else
CHECKFILE="${FILE}"
fi
if IsWorldWritable ${CHECKFILE}; then
FOUND=1
LogText "Result: warning, file ${CHECKFILE} is world writable"
else
LogText "Result: good, file ${CHECKFILE} not world writable"
fi
done
else
LogText "Result: found no files in directory."
fi
else
LogText "Result: directory ${CHECKDIR} not found. Skipping.."
fi
# Other files
CHECKFILES="${ROOTDIR}etc/rc ${ROOT}etc/rc.conf ${ROOT}etc/rc.conf.local ${ROOTDIR}etc/rc.local"
for I in ${CHECKFILES}; do
if [ -f ${I} ]; then
ShowSymlinkPath "${I}"
if [ ${FOUNDPATH} -eq 1 ]; then
CHECKFILE="${SYMLINK}"
LogText "Result: found the path behind this symlink (${CHECKFILE} --> ${I})"
else
CHECKFILE="${I}"
fi
LogText "Test: Checking ${CHECKFILE} file for writable bit"
if IsWorldWritable ${CHECKFILE}; then
FOUND=1
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ReportWarning "${TEST_NO}" "Found writable startup script ${CHECKFILE}"
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LogText "Result: warning, file ${CHECKFILE} is world writable"
else
LogText "Result: good, file ${CHECKFILE} not world writable"
fi
fi
done
# Check results
if [ ${FOUND} -eq 1 ]; then
Display --indent 2 --text "- Check startup files (permissions)" --result "${STATUS_WARNING}" --color RED
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ReportWarning "${TEST_NO}" "Found world writable startup scripts" "-" "-"
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LogText "Result: found one or more scripts which are possibly writable by other users"
AddHP 0 3
else
Display --indent 2 --text "- Check startup files (permissions)" --result "${STATUS_OK}" --color GREEN
AddHP 3 3
fi
fi
#
#################################################################################
#
# Test : BOOT-5264
# Description : Run systemd-analyze security
if [ -z "${SYSTEMDANALYZEBINARY}" ]; then SKIPREASON="systemd-analyze not available"; PREQS_MET="NO";
else
SYSTEMD_VERSION=$("${SYSTEMDANALYZEBINARY}" --version | ${AWKBINARY} '/^systemd / {print $2}')
if [ "${SYSTEMD_VERSION}" -ge 240 ]; then PREQS_MET="YES"; else SKIPREASON="systemd-analyze too old (v${SYSTEMD_VERSION}), need at least v240"; PREQS_MET="NO"; fi
fi
Register --test-no BOOT-5264 --preqs-met ${PREQS_MET} --skip-reason "${SKIPREASON}" --os Linux --weight L --network NO --category security --description "Run systemd-analyze security"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Run systemd-analyze security"
Display --indent 2 --text "- Running 'systemd-analyze security'"
${SYSTEMDANALYZEBINARY} security | while read UNIT EXPOSURE PREDICATE HAPPY; do
if [ "${UNIT}" = "UNIT" ]; then
continue
fi
COLOR="BLACK"
case ${PREDICATE} in
PERFECT | SAFE | OK)
COLOR=GREEN
;;
MEDIUM)
COLOR=WHITE
;;
EXPOSED)
COLOR=YELLOW
;;
UNSAFE | DANGEROUS)
COLOR=RED
;;
esac
Display --indent 8 --text "- ${UNIT}:" --result "${PREDICATE}" --color "${COLOR}"
LogText "Result: ${UNIT}: ${EXPOSURE} ${PREDICATE}"
done
ReportSuggestion "${TEST_NO}" "Consider hardening system services" "Run '${SYSTEMDANALYZEBINARY} security SERVICE' for each service"
fi
#
#################################################################################
#
Report "boot_loader=${BOOT_LOADER}"
Report "boot_uefi_booted=${UEFI_BOOTED}"
Report "boot_uefi_booted_secure=${UEFI_BOOTED_SECURE}"
Report "service_manager=${SERVICE_MANAGER}"
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WaitForKeyPress
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#
#================================================================================
# Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com