#!/bin/sh

#################################################################################
#
#   Lynis
# ------------------
#
# Copyright 2007-2015, Michael Boelen (michael@rootkit.nl), The Netherlands
# Web site: http://www.rootkit.nl
#
# Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
# welcome to redistribute it under the terms of the GNU General Public License.
# See LICENSE file for usage of this software.
#
#################################################################################
#
# Home directories
#
#################################################################################
#
    InsertSection "Home directories"
#
#################################################################################
#
    # Ignore some top level directories (not the sub directories below)
    IGNORE_HOME_DIRS="/bin /boot /cdrom /dev /etc /home /lib /lib64 /media /mnt
                      /opt /proc /sbin /selinux /srv /sys /tmp /usr /var"
#
#################################################################################
#

    # Test        : HOME-9302
    # Description : Create list with home directories
    Register --test-no HOME-9302 --weight L --network NO --description "Create list with home directories"
    if [ ${SKIPTEST} -eq 0 ]; then
        # Read sixth field of /etc/passwd
        logtext "Test: query /etc/passwd to obtain home directories"
        FIND=`${AWKBINARY} -F: '{ if ($1 !~ "#") print $6 }' /etc/passwd | sort | uniq`
        for I in ${FIND}; do
            if [ -d ${I} ]; then
                logtext "Result: found home directory: ${I} (directory exists)"
                report "home_directory[]=${I}"
              else
                logtext "Result: found home directory: ${I} (directory does not exist)"
            fi
        done
    fi
#
#################################################################################
#
    # Test        : HOME-9310
    # Description : Check for suspicious shell history files
    Register --test-no HOME-9310 --weight L --network NO --description "Checking for suspicious shell history files"
    if [ ${SKIPTEST} -eq 0 ]; then
        if [ ! "${HOMEDIRS}" = "" ]; then
            if [ "${OS}" = "Solaris" ]; then
                # Solaris doesn't support -maxdepth
                FIND=`find ${HOMEDIRS} -name ".*history" -not -type f -print`
              else
                FIND=`find ${HOMEDIRS} -maxdepth 1 -name ".*history" -not -type f -print`
            fi
            if [ "${FIND}" = "" ]; then
                Display --indent 2 --text "- Checking shell history files" --result OK --color GREEN
                logtext "Result: Ok, history files are type 'file'."
              else
                Display --indent 2 --text "- Checking shell history files" --result WARNING --color RED
                logtext "Result: the following files seem to be of the wrong file type:"
                logtext "Output: ${FIND}"
                logtext "Info: above files could be redirected files to avoid logging and should be investigated"
                ReportWarning ${TEST_NO} "M" "Incorrect file type found for shell history file"
            fi
            logtext "Remarks: ${HOME_HISTORY_LOG_TEXT}"
          else
            Display --indent 2 --text "- Checking shell history files" --result SKIPPED --color WHITE
            logtext "Result: Homedirs is empty, test will be skipped"
        fi
    fi
#
#################################################################################
#
    # Test        : HOME-9314
    # Description : Check if non local paths are found in PATH, which can be a risk, but also bad for performance
    #               (like searching on a filer, instead of local disk)
    #Register --test-no HOME-9314 --weight L --network NO --description "Create list with home directories"
#
#################################################################################
#
    # Test        : HOME-9350
    # Description : Scan home directories for specific files, used in different tests later
    # Notes       : For performance reasons we combine the scanning of different files, so inode caching is used
    #               as much as possible for every find command
    # Profile opt : ignore_home_dir (multiple lines allowed), ignores home directory
    if [ ! "${REPORTFILE}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no HOME-9350 --preqs-met ${PREQS_MET} --weight L --network NO --description "Collecting information from home directories"
    if [ ${SKIPTEST} -eq 0 ]; then
        IGNORE_HOME_DIRS=`grep "^config:ignore_home_dir:" ${PROFILE} | awk -F: '{ print $3 }'`
        if [ "${IGNORE_HOME_DIRS}" = "" ]; then
            logtext "Result: IGNORE_HOME_DIRS empty, no paths excluded"
          else
            logtext "Output: ${IGNORE_HOME_DIRS}"
        fi
    fi

    #YYY
    #echo -n "      - Checking PATH variable vulnerabilities"
    #
    #FIND=`find ${HOMEDIRS} -name * | grep -r 'PATH=' | egrep '=.:|:.:|:.;' | grep -v 'CDPATH'`
    #if [ "${FIND}" = "" ]
    #  then
    #    logtext "Result: Ok, no special things found in the PATH variable"
    #  else
    #    echo "[ ${WARNING}WARNING${NORMAL} ]"
    #    logtext "Warning: Probably found \".\" in the PATH. Details: ${FIND}"
    #fi
    #
#
#################################################################################
#

wait_for_keypress

#
#================================================================================
# Lynis - Copyright 2007-2015, Michael Boelen - www.rootkit.nl - The Netherlands