#!/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.
#
#################################################################################
#
# Printers and spools
#
#################################################################################
#
    CUPSD_CONFIG_LOCS="/etc/cups /usr/local/etc/cups /private/etc/cups"
    CUPSD_CONFIG_FILE=""
    CUPSD_RUNNING=0
    CUPSD_FOUND=0
    LPD_RUNNING=0
    PRINTING_DAEMON=""
    QDAEMON_CONFIG_ENABLED=0
    QDAEMON_CONFIG_FILE=""
    QDAEMON_RUNNING=0
#
#################################################################################
#
    InsertSection "Printers and Spools"
#
#################################################################################
#
    # Test        : PRNT-2302
    # Description : Check printcap file consistency
    Register --test-no PRNT-2302 --os FreeBSD --weight L --network NO --category security --description "Check for printcap consistency"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Searching /usr/sbin/chkprintcap"
        if [ ! -f /usr/sbin/chkprintcap ]; then
            Display --indent 2 --text "- Checking chkprintcap" --result "${STATUS_NOT_FOUND}" --color WHITE
            LogText "Result: /usr/sbin/chkprintcap NOT found, test skipped."
          else
            LogText "Result: /usr/sbin/chkprintcap found"
            FIND=`/usr/sbin/chkprintcap > /dev/null ; echo $?`
            # Only an exit code of zero should come back. Use string instead of integer, due unexpected trash
            if [ "${FIND}" = "0" ]; then
                Display --indent 2 --text "- Integrity check of printcap file" --result "${STATUS_OK}" --color GREEN
                LogText "Result: chkprintcap did NOT gave any warnings"
              else
                Display --indent 2 --text "- Integrity check of printcap file" --result "${STATUS_WARNING}" --color RED
                ReportSuggestion ${TEST_NO} "Run chkprintcap manually to test printcap file"
                LogText "Output from chkprintcap: ${FIND}"
                LogText "Run chkprintcap and check the /etc/printcap file."
            fi
        fi
    fi
#
#################################################################################
#
    # Test        : PRNT-2304
    # Description : Check cupsd status
    Register --test-no PRNT-2304 --weight L --network NO --category security --description "Check cupsd status"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Checking cupsd status"
        #FIND=`${PSBINARY} ax | ${GREPBINARY} "cupsd" | ${GREPBINARY} -v "grep" | ${GREPBINARY} -v apcupsd`
        IsRunning cupsd
        if [ ${RUNNING} -eq 1 ]; then
            Display --indent 2 --text "- Checking cups daemon" --result "${STATUS_RUNNING}" --color GREEN
            LogText "Result: cups daemon running"
            CUPSD_RUNNING=1; PRINTING_DAEMON="cups"
          else
            Display --indent 2 --text "- Checking cups daemon" --result "${STATUS_NOT_FOUND}" --color WHITE
            LogText "Result: cups daemon not running, cups daemon tests skipped"
        fi
    fi
#
#################################################################################
#
    # Test        : PRNT-2306
    # Description : Check CUPSd configuration file
    if [ ${CUPSD_RUNNING} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no PRNT-2306 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check CUPSd configuration file"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Searching cupsd configuration file"
        for I in ${CUPSD_CONFIG_LOCS}; do
            if [ -f ${I}/cupsd.conf ]; then
                if FileIsReadable ${I}/cupsd.conf; then
                    CUPSD_CONFIG_FILE="${I}/cupsd.conf"
                    LogText "Result: found ${CUPSD_CONFIG_FILE}"
                fi
            fi
        done
        if [ ! "${CUPSD_CONFIG_FILE}" = "" ]; then
            Display --indent 2 --text "- Checking CUPS configuration file" --result "${STATUS_OK}" --color GREEN
            LogText "Result: configuration file found (${CUPSD_CONFIG_FILE})"
            CUPSD_FOUND=1
          else
            Display --indent 2 --text "- Checking CUPS configuration file" --result "${STATUS_NOT_FOUND}" --color RED
            LogText "Result: configuration file not found"
            LogText "Development: no CUPS configuration file found"
        fi
    fi
#
#################################################################################
#
    # Test        : PRNT-2307
    # Description : Check CUPSd configuration file permissions
    # To Do       : Add function
    if [ ${CUPSD_FOUND} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no PRNT-2307 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check CUPSd configuration file permissions"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Checking CUPS configuration file permissions"
        FIND=`ls -l ${CUPSD_CONFIG_FILE} | ${CUTBINARY} -c 2-10`
        LogText "Result: found ${FIND}"
        if [ "${FIND}" = "r--------" -o "${FIND}" = "rw-------" -o "${FIND}" = "rw-r-----" -o "${FIND}" = "rw-rw----" ]; then
            Display --indent 4 --text "- File permissions" --result "${STATUS_OK}" --color GREEN
            AddHP 1 1
          else
            Display --indent 4 --text "- File permissions" --result "${STATUS_WARNING}" --color RED
            ReportSuggestion ${TEST_NO} "Access to CUPS configuration could be more strict."
            AddHP 1 2
        fi
    fi
#
#################################################################################
#
    # Test        : PRNT-2308
    # Description : Check CUPS daemon network configuration
    if [ ${CUPSD_FOUND} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no PRNT-2308 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check CUPSd network configuration"
    if [ ${SKIPTEST} -eq 0 ]; then
        FOUND=0
        # Checking network addresses
        LogText "Test: Checking CUPS daemon listening network addresses"
        FIND=`${GREPBINARY} "^Listen" ${CUPSD_CONFIG_FILE} | ${GREPBINARY} -v "/" | ${AWKBINARY} '{ print $2 }'`
        N=0
        for I in ${FIND}; do
            LogText "Found network address: ${I}"
            N=$((N + 1))
            FOUND=1
        done
        if [ ${FOUND} -eq 0 ]; then
           ReportException "${TEST_NO}:1" "No listen statement found in CUPS configuration file"
        fi

        # Check if daemon is only running on localhost
        if [ ${N} -eq 1 ]; then
            if [ "${FIND}" = "localhost:631" -o "${FIND}" = "127.0.0.1:631" ]; then
                LogText "Result: CUPS daemon only running on localhost"
                AddHP 2 2
              else
                LogText "Result: CUPS daemon running on one or more interfaces (not limited to localhost)"
                ReportSuggestion ${TEST_NO} "Check CUPS configuration if it really needs to listen on the network"
                AddHP 1 2
            fi
          else
            LogText "Result: CUPS daemon is running on several network addresses"
            ReportSuggestion ${TEST_NO} "Check CUPS configuration if it really needs to run on several network addresses"
            AddHP 1 2
        fi

        # Checking sockets
        LogText "Test: Checking cups daemon listening sockets"
        FIND=`${GREPBINARY} "^Listen" ${CUPSD_CONFIG_FILE} | ${GREPBINARY} "/" | ${AWKBINARY} '{ print $2 }'`
        for I in ${FIND}; do
            LogText "Found socket address: ${I}"
            N=$((N + 1))
        done

        if [ ${N} -eq 0 ]; then
            Display --indent 2 --text "- Checking CUPS addresses/sockets" --result "${STATUS_NONE}" --color WHITE
            LogText "Result: no addresses found on which CUPS daemon is listening"
          else
            Display --indent 2 --text "- Checking CUPS addresses/sockets" --result "${STATUS_FOUND}" --color GREEN
            LogText "Result: CUPS daemon is listening on network/socket"
        fi
    fi
#
#################################################################################
#
    # Test        : PRNT-2314
    # Description : Check lpd status
    Register --test-no PRNT-2314 --weight L --network NO --category security --description "Check lpd status"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Checking lpd status"
        IsRunning lpd
        if [ ${RUNNING} -eq 1 ]; then
            Display --indent 2 --text "- Checking lp daemon" --result "${STATUS_RUNNING}" --color GREEN
            LogText "Result: lp daemon running"
            LPD_RUNNING=1; PRINTING_DAEMON="lp"
          else
            Display --indent 2 --text "- Checking lp daemon" --result "${STATUS_NOT_RUNNING}" --color WHITE
            LogText "Result: lp daemon not running"
            AddHP 4 4
        fi
    fi
#
#################################################################################
#
    # Test        : PRNT-23xx
    # Description : Test Linux printcap file
    #if [ ${CUPSD_RUNNING} -eq 1 -a ! "${CUPSD_CONFIG_FILE}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    #Register --test-no PRNT-23xx--preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check cupsd address configuration"
    #if [ ${SKIPTEST} -eq 0 ]; then
    #if [ "${OS}" = "Linux" ]; then
    #    echo "        - Testing printcap file [Test not implemented yet]"
    #    # Check printcap with checkpc command
    #fi
#
#################################################################################
#
    # Test        : PRNT-2416
    # Description : Check /etc/qconfig file
    Register --test-no PRNT-2316 --os AIX --weight L --network NO --category security --description "Checking /etc/qconfig file"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Checking /etc/qconfig"
        QDAEMON_CONFIG_FILE="/etc/qconfig"
        FileIsReadable ${QDAEMON_CONFIG_FILE}
        if [ ${CANREAD} -eq 1 ]; then
            FIND=`${GREPBINARY} -v "^\*" ${QDAEMON_CONFIG_FILE} | ${EGREPBINARY} "backend|device"`
            if [ ! "${FIND}" = "" ]; then
                LogText "Result: printers are defined in ${QDAEMON_CONFIG_FILE}"
                Display --indent 2 --text "- Checking /etc/qconfig file" --result "${STATUS_FOUND}" --color GREEN
                QDAEMON_CONFIG_ENABLED=1
              else
                LogText "Result: ${QDAEMON_CONFIG_FILE} is empty. No printers are defined"
                Display --indent 2 --text "- Checking /etc/qconfig file" --result EMPTY --color WHITE
            fi
          else
            LogText "Result: Can not read ${QDAEMON_CONFIG_FILE} (no permission)"
        fi
    fi
#
#################################################################################
#
    # Test        : PRNT-2418
    # Description : Check qdaemon printer spooler status
    Register --test-no PRNT-2418 --os AIX --weight L --network NO --category security --description "Checking qdaemon printer spooler status"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Checking qdaemon status"
        IsRunning qdaemon
        if [ ${RUNNING} -eq 1 ]; then
            LogText "Result: qdaemon daemon running"
            Display --indent 2 --text "- Checking qdaemon daemon" --result "${STATUS_RUNNING}" --color GREEN
            QDAEMON_RUNNING=1; PRINTING_DAEMON="qdaemon"
          else
            if [ ${QDAEMON_CONFIG_ENABLED} -eq 1 ]; then
                LogText "Result: qdaemon daemon not running"
                Display --indent 2 --text "- Checking qdaemon daemon" --result "${STATUS_NOT_RUNNING}" --color RED
                ReportSuggestion ${TEST_NO} "Activate print spooler daemon (qdaemon) in order to process print jobs"
              else
                LogText "Result: qdaemon daemon not running"
                Display --indent 2 --text "- Checking qdaemon daemon" --result "${STATUS_NOT_RUNNING}" --color WHITE
            fi
        fi
    fi
#
#################################################################################
#
    # Test        : PRNT-2420
    # Description : Checking old print jobs
    Register --test-no PRNT-2420 --os AIX --weight L --network NO --category security --description "Checking old print jobs"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Checking old print jobs"
        DirectoryExists /var/spool/lpd/qdir
        if [ ${DIRECTORY_FOUND} -eq 1 ]; then
            FIND=`find /var/spool/lpd/qdir -type f -mtime +1 2> /dev/null | ${SEDBINARY} 's/ /!space!/g'`
            if [ ! "${FIND}" = "" ]; then
                N=0
                for I in ${FIND}; do
                    FILE=`echo ${I} | ${SEDBINARY} 's/!space!/ /g'`
                    LogText "Found old print job: ${FILE}"
                    N=$((N + 1))
                done
                LogText "Result: Found ${N} old print jobs in /var/spool/lpd/qdir"
                Display --indent 4 --text "- Checking old print jobs" --result "${STATUS_FOUND}" --color YELLOW
                ReportSuggestion ${TEST_NO} "Check old print jobs in /var/spool/lpd/qdir to prevent new jobs from being processed"
                LogText "Risk: Failed or defunct print jobs can occupy a lot of space and in some cases, prevent new jobs from being processed"
              else
                LogText "Result: Old print jobs not found in /var/spool/lpd/qdir"
                Display --indent 4 --text "- Checking old print jobs" --result "${STATUS_NONE}" --color GREEN
            fi
        fi
    fi
#
#################################################################################
#

Report "printing_daemon=${PRINTING_DAEMON}"

WaitForKeyPress

#
#================================================================================
# Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com