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/usr/share/lynis/include

Name	Size	Mode	Actions
binaries	39476	0644	edit dl rm
consts	10898	0644	edit dl rm
data_upload	13788	0644	edit dl rm
functions	163241	0644	edit dl rm
helper_audit_dockerfile	8000	0644	edit dl rm
helper_configure	3748	0644	edit dl rm
helper_generate	7557	0644	edit dl rm
helper_show	22820	0644	edit dl rm
helper_system_remote_scan	3620	0644	edit dl rm
helper_update	3671	0644	edit dl rm
osdetection	48570	0644	edit dl rm
parameters	16874	0644	edit dl rm
profiles	27540	0644	edit dl rm
report	18915	0644	edit dl rm
tests_accounting	25852	0644	edit dl rm
tests_authentication	86063	0644	edit dl rm
tests_banners	8562	0644	edit dl rm
tests_boot_services	56034	0644	edit dl rm
tests_containers	11439	0644	edit dl rm
tests_crypto	19456	0644	edit dl rm
tests_custom.template	6942	0644	edit dl rm
tests_databases	24863	0644	edit dl rm
tests_dns	3467	0644	edit dl rm
tests_filesystems	50995	0644	edit dl rm
tests_file_integrity	22714	0644	edit dl rm
tests_file_permissions	3185	0644	edit dl rm
tests_firewalls	32270	0644	edit dl rm
tests_hardening	7187	0644	edit dl rm
tests_homedirs	9392	0644	edit dl rm
tests_insecure_services	27528	0644	edit dl rm
tests_kerberos	8063	0644	edit dl rm
tests_kernel	61403	0644	edit dl rm
tests_kernel_hardening	5752	0644	edit dl rm
tests_ldap	4055	0644	edit dl rm
tests_logging	33726	0644	edit dl rm
tests_mac_frameworks	15067	0644	edit dl rm
tests_mail_messaging	21967	0644	edit dl rm
tests_malware	21101	0644	edit dl rm
tests_memory_processes	7334	0644	edit dl rm
tests_nameservices	35361	0644	edit dl rm
tests_networking	41705	0644	edit dl rm
tests_php	29772	0644	edit dl rm
tests_ports_packages	83692	0644	edit dl rm
tests_printers_spoolers	14188	0644	edit dl rm
tests_scheduling	16131	0644	edit dl rm
tests_shells	13643	0644	edit dl rm
tests_snmp	4273	0644	edit dl rm
tests_squid	17156	0644	edit dl rm
tests_ssh	18026	0644	edit dl rm
tests_storage	3680	0644	edit dl rm
tests_storage_nfs	8603	0644	edit dl rm
tests_system_integrity	2098	0644	edit dl rm
tests_time	33413	0644	edit dl rm
tests_tooling	22624	0644	edit dl rm
tests_usb	21554	0644	edit dl rm
tests_virtualization	1992	0644	edit dl rm
tests_webservers	33977	0644	edit dl rm
tool_tips	2205	0644	edit dl rm

Edit: /usr/share/lynis/include/tests_banners (8562B)

#!/bin/sh

#################################################################################
#
#   Lynis
# ------------------
#
# Copyright (c) Michael Boelen, CISOfy, and many contributors.
#
# Website  : https://cisofy.com
# Blog     : https://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.
#
#################################################################################
#
# Banners and identification
#
#################################################################################
#
    InsertSection "${SECTION_BANNERS_AND_IDENTIFICATION}"
#
#################################################################################
#
    BANNER_FILES="${ROOTDIR}etc/issue ${ROOTDIR}etc/issue.net ${ROOTDIR}etc/motd"
    LEGAL_BANNER_STRINGS="audit access authori condition connect consent continu criminal enforce evidence forbidden intrusion law legal legislat log monitor owner penal policy policies privacy private prohibited prosecute record report restricted secure subject system terms warning"
#
#################################################################################
#
    # Test        : BANN-7113
    # Description : Check FreeBSD COPYRIGHT banner file
    Register --test-no BANN-7113 --os FreeBSD --weight L --network NO --category security --description "Check COPYRIGHT banner file"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Testing existence ${ROOTDIR}COPYRIGHT or ${ROOTDIR}etc/COPYRIGHT"
        if [ -f ${ROOTDIR}COPYRIGHT ]; then
            Display --indent 2 --text "- ${ROOTDIR}COPYRIGHT" --result "${STATUS_FOUND}" --color GREEN
            if [ -s ${ROOTDIR}COPYRIGHT ]; then
                LogText "Result: ${ROOTDIR}COPYRIGHT available and contains text"
            else
                LogText "Result: ${ROOTDIR}COPYRIGHT available, but empty"
            fi
        else
            Display --indent 2 --text "- ${ROOTDIR}COPYRIGHT" --result "${STATUS_NOT_FOUND}" --color WHITE
            LogText "Result: ${ROOTDIR}COPYRIGHT not found"
        fi

if [ -f ${ROOTDIR}etc/COPYRIGHT ]; then
            Display --indent 2 --text "- ${ROOTDIR}etc/COPYRIGHT" --result "${STATUS_FOUND}" --color GREEN
            if [ -s ${ROOTDIR}etc/COPYRIGHT ]; then
                LogText "Result: ${ROOTDIR}etc/COPYRIGHT available and contains text"
            else
                LogText "Result: ${ROOTDIR}etc/COPYRIGHT available, but empty"
            fi
        else
            Display --indent 2 --text "- ${ROOTDIR}etc/COPYRIGHT" --result "${STATUS_NOT_FOUND}" --color WHITE
            LogText "Result: ${ROOTDIR}etc/COPYRIGHT not found"
        fi
    fi
#
#################################################################################
#
    # Test        : BANN-7124
    # Description : Check issue banner file
    Register --test-no BANN-7124 --weight L --network NO --category security --description "Check issue banner file"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Checking file ${ROOTDIR}etc/issue"
        if [ -f ${ROOTDIR}etc/issue ]; then
            # Check for symlink
            if [ -L ${ROOTDIR}etc/issue ]; then
                LogText "Result: file ${ROOTDIR}etc/issue exists (symlink)"
                Display --indent 2 --text "- ${ROOTDIR}etc/issue" --result SYMLINK --color GREEN
            else
                Display --indent 2 --text "- ${ROOTDIR}etc/issue" --result "${STATUS_FOUND}" --color GREEN
            fi
        else
            LogText "Result: file ${ROOTDIR}etc/issue does not exist"
            Display --indent 2 --text "- ${ROOTDIR}etc/issue" --result "${STATUS_NOT_FOUND}" --color WHITE
        fi
    fi
#
#################################################################################
#
    # Test        : BANN-7126
    # Description : Check issue file to see if it contains some form of message
    #               to discourage unauthorized users to leave the system alone
    if [ -f ${ROOTDIR}etc/issue ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no BANN-7126 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check issue banner file contents"
    if [ ${SKIPTEST} -eq 0 ]; then
        COUNT=0
        FILE="${ROOTDIR}etc/issue"
        LogText "Test: Checking file ${FILE} contents for legal key words"
        for ITEM in ${LEGAL_BANNER_STRINGS}; do
            FIND=$(${GREPBINARY} -i "${ITEM}" ${FILE})
            if HasData "${FIND}"; then
                LogText "Result: found string '${ITEM}'"
                COUNT=$((COUNT + 1))
            fi
        done
        # Check if we have 5 or more key words
        if [ ${COUNT} -gt 4 ]; then
            LogText "Result: Found ${COUNT} key words (5 or more suggested), to warn unauthorized users"
            Display --indent 4 --text "- ${FILE} contents" --result "${STATUS_OK}" --color GREEN
            AddHP 2 2
        else
            LogText "Result: Found only ${COUNT} key words (5 or more suggested), to warn unauthorized users and could be increased"
            Display --indent 4 --text "- ${FILE} contents" --result "${STATUS_WEAK}" --color YELLOW
            ReportSuggestion "${TEST_NO}" "Add a legal banner to ${FILE}, to warn unauthorized users"
            AddHP 0 1
            Report "weak_banner_file[]=${FILE}"
        fi
    fi
#
#################################################################################
#
    # Test        : BANN-7128
    # Description : Check issue.net banner file
    Register --test-no BANN-7128 --weight L --network NO --category security --description "Check issue.net banner file"
    if [ ${SKIPTEST} -eq 0 ]; then
        LogText "Test: Checking file ${ROOTDIR}etc/issue.net"
        if [ -f ${ROOTDIR}etc/issue.net ]; then
            # Check for symlink
            if [ -L ${ROOTDIR}etc/issue.net ]; then
                LogText "Result: file ${ROOTDIR}etc/issue.net exists (symlink)"
                Display --indent 2 --text "- ${ROOTDIR}etc/issue.net" --result SYMLINK --color GREEN
            else
                LogText "Result: file ${ROOTDIR}etc/issue.net exists"
                Display --indent 2 --text "- ${ROOTDIR}etc/issue.net" --result "${STATUS_FOUND}" --color GREEN
            fi
        else
            LogText "Result: file ${ROOTDIR}etc/issue.net does not exist"
            Display --indent 2 --text "- ${ROOTDIR}etc/issue.net" --result "${STATUS_NOT_FOUND}" --color WHITE
        fi
    fi
#
#################################################################################
#
    # Test        : BANN-7130
    # Description : Check issue.net file to see if it contains some form of message
    #               to discourage unauthorized users to leave the system alone
    if [ -f ${ROOTDIR}etc/issue.net ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no BANN-7130 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check issue.net banner file contents"
    if [ ${SKIPTEST} -eq 0 ]; then
        COUNT=0
        LogText "Test: Checking file ${ROOTDIR}etc/issue.net contents for legal key words"
        for ITEM in ${LEGAL_BANNER_STRINGS}; do
            FIND=$(${GREPBINARY} -i "${ITEM}" ${ROOTDIR}etc/issue.net)
            if HasData "${FIND}"; then
                LogText "Result: found string '${ITEM}'"
                COUNT=$((COUNT + 1))
            fi
        done
        # Check if we have 5 or more key words
        if [ ${COUNT} -gt 4 ]; then
            LogText "Result: Found ${COUNT} key words, to warn unauthorized users"
            Display --indent 4 --text "- ${ROOTDIR}etc/issue.net contents" --result "${STATUS_OK}" --color GREEN
            AddHP 2 2
        else
            LogText "Result: Found only ${COUNT} key words, to warn unauthorized users and could be increased"
            Display --indent 4 --text "- ${ROOTDIR}etc/issue.net contents" --result "${STATUS_WEAK}" --color YELLOW
            ReportSuggestion "${TEST_NO}" "Add legal banner to /etc/issue.net, to warn unauthorized users"
            AddHP 0 1
        fi
    fi
#
#################################################################################
#

WaitForKeyPress

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

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