mirror of https://github.com/CISOfy/lynis.git
115 lines
5.2 KiB
Bash
115 lines
5.2 KiB
Bash
#!/bin/sh
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#################################################################################
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#
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# Lynis
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# ------------------
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#
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# Copyright 2007-2013, Michael Boelen
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# Copyright 2013-2016, CISOfy
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#
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# Website : https://cisofy.com
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# Blog : http://linux-audit.com
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# GitHub : https://github.com/CISOfy/lynis
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#
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# Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
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# welcome to redistribute it under the terms of the GNU General Public License.
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# See LICENSE file for usage of this software.
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#
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#################################################################################
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#
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# Home directories
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#
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#################################################################################
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#
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InsertSection "Home directories"
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#
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#################################################################################
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#
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# Ignore some top level directories (not the sub directories below)
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IGNORE_HOME_DIRS="/bin /boot /cdrom /dev /etc /home /lib /lib64 /media /mnt
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/opt /proc /sbin /selinux /srv /sys /tmp /usr /var"
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#
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#################################################################################
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#
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# Test : HOME-9302
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# Description : Create list with home directories
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Register --test-no HOME-9302 --weight L --network NO --description "Create list with home directories"
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if [ ${SKIPTEST} -eq 0 ]; then
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# Read sixth field of /etc/passwd
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LogText "Test: query /etc/passwd to obtain home directories"
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FIND=`${AWKBINARY} -F: '{ if ($1 !~ "#") print $6 }' /etc/passwd | sort -u`
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for I in ${FIND}; do
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if [ -d ${I} ]; then
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LogText "Result: found home directory: ${I} (directory exists)"
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Report "home_directory[]=${I}"
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else
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LogText "Result: found home directory: ${I} (directory does not exist)"
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fi
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done
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fi
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#
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#################################################################################
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#
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# Test : HOME-9310
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# Description : Check for suspicious shell history files
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Register --test-no HOME-9310 --weight L --network NO --description "Checking for suspicious shell history files"
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if [ ${SKIPTEST} -eq 0 ]; then
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if [ ! "${HOMEDIRS}" = "" ]; then
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if [ "${OS}" = "Solaris" ]; then
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# Solaris doesn't support -maxdepth
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FIND=`find ${HOMEDIRS} -name ".*history" ! -type f -print`
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else
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FIND=`find ${HOMEDIRS} -maxdepth 1 -name ".*history" ! -type f -print`
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fi
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if [ "${FIND}" = "" ]; then
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Display --indent 2 --text "- Checking shell history files" --result OK --color GREEN
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LogText "Result: Ok, history files are type 'file'."
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else
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Display --indent 2 --text "- Checking shell history files" --result WARNING --color RED
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LogText "Result: the following files seem to be of the wrong file type:"
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LogText "Output: ${FIND}"
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LogText "Info: above files could be redirected files to avoid logging and should be investigated"
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ReportWarning ${TEST_NO} "M" "Incorrect file type found for shell history file"
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fi
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LogText "Remarks: History files are normally of the type 'file'. Symbolic links and other types can be riskful."
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else
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Display --indent 2 --text "- Checking shell history files" --result SKIPPED --color WHITE
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LogText "Result: Homedirs is empty, test will be skipped"
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fi
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fi
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#
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#################################################################################
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#
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# Test : HOME-9314
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# Description : Check if non local paths are found in PATH, which can be a risk, but also bad for performance
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# (like searching on a filer, instead of local disk)
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#Register --test-no HOME-9314 --weight L --network NO --description "Create list with home directories"
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#
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#################################################################################
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#
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# Test : HOME-9350
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# Description : Scan home directories for specific files, used in different tests later
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# Notes : For performance reasons we combine the scanning of different files, so inode caching is used
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# as much as possible for every find command
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# Profile opt : ignore_home_dir (multiple lines allowed), ignores home directory
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if [ ! "${REPORTFILE}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
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Register --test-no HOME-9350 --preqs-met ${PREQS_MET} --weight L --network NO --description "Collecting information from home directories"
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if [ ${SKIPTEST} -eq 0 ]; then
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IGNORE_HOME_DIRS=`grep "^config:ignore_home_dir:" ${PROFILE} | awk -F: '{ print $3 }'`
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if [ "${IGNORE_HOME_DIRS}" = "" ]; then
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LogText "Result: IGNORE_HOME_DIRS empty, no paths excluded"
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else
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LogText "Output: ${IGNORE_HOME_DIRS}"
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fi
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fi
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#
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#################################################################################
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#
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wait_for_keypress
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#
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#================================================================================
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# Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com
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