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lynis/include/tests_banners
hlein b595cc0fb5 Various cleanups (#363) 
* Typo fix.

* Style change: always use $(), never ``.

The Lynis code already mostly used $(), but backticks were sprinkled
around.  Converted all of them.

* Lots of minor spelling/typo fixes.

FWIW these were found with:

  find . -type f -print0 | xargs -0 cat | aspell list | sort -u | egrep '^[a-z]+$' | less

And then reviewing the list to pick out things that looked like
misspelled words as opposed to variables, etc., and then manual
inspection of context to determine the intention.
2017-03-06 07:41:21 +00:00

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#!/bin/sh
#################################################################################
#
# Lynis
# ------------------
#
# Copyright 2007-2013, Michael Boelen
# Copyright 2007-2017, 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.
#
#################################################################################
#
# Banners and identification
#
#################################################################################
#
InsertSection "Banners and identification"
#
#################################################################################
#
BANNER_FILES="/etc/issue /etc/issue.net /etc/motd"
LEGAL_BANNER_STRINGS="audit access authori connect enforce evidence intrusion law legal monitor owner policy policies private prohibited restricted subject terms this unauthorized"
#
#################################################################################
#
# 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 [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Testing existence /COPYRIGHT or /etc/COPYRIGHT"
if [ -f /COPYRIGHT ]; then
Display --indent 2 --text "- /COPYRIGHT" --result "${STATUS_FOUND}" --color GREEN
if [ -s /COPYRIGHT ]; then
LogText "Result: /COPYRIGHT available and contains text"
else
LogText "Result: /COPYRIGHT available, but empty"
fi
else
Display --indent 2 --text "- /COPYRIGHT" --result "${STATUS_NOT_FOUND}" --color WHITE
LogText "Result: /COPYRIGHT not found"
fi
if [ -f /etc/COPYRIGHT ]; then
Display --indent 2 --text "- /etc/COPYRIGHT" --result "${STATUS_FOUND}" --color GREEN
if [ -s /etc/COPYRIGHT ]; then
LogText "Result: /etc/COPYRIGHT available and contains text"
else
LogText "Result: /etc/COPYRIGHT available, but empty"
fi
else
Display --indent 2 --text "- /etc/COPYRIGHT" --result "${STATUS_NOT_FOUND}" --color WHITE
LogText "Result: /etc/COPYRIGHT not found"
fi
fi
#
#################################################################################
#
# Test : BANN-7119
# Description : Check MOTD banner file
#Register --test-no BANN-7119 --weight L --network NO --category security --description "Check MOTD banner file"
#if [ ${SKIPTEST} -eq 0 ]; then
# LogText "Test: Testing existence /etc/motd"
# if [ -f /etc/motd ]; then
# LogText "Result: file /etc/motd exists"
# Display --indent 2 --text "- /etc/motd" --result "${STATUS_FOUND}" --color GREEN
# if [ ! -L /etc/motd ]; then
# if IsWorldWritable /etc/motd; then
# Display --indent 4 --text "- /etc/motd permissions" --result "${STATUS_WARNING}" --color RED
# LogText "Result: /etc/motd is world writable. Users can change this file!"
# ReportWarning ${TEST_NO} "/etc/motd is world writable"
# else
# Display --indent 4 --text "- /etc/motd permissions" --result "${STATUS_OK}" --color GREEN
# LogText "Result: /etc/motd is not world writable."
# fi
# else
# LogText "Result: file /etc/motd is symlink"
# fi
# else
# LogText "Result: File /etc/motd not found"
# Display --indent 2 --text "- /etc/motd" --result "${STATUS_NOT_FOUND}" --color WHITE
# fi
#fi
#
#################################################################################
#
# Test : BANN-7122
# Description : Check motd file to see if it contains some form of message
# to discourage unauthorized users to leave the system alone
#if [ -f /etc/motd -a ! -L /etc/motd ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
#Register --test-no BANN-7122 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check /etc/motd banner file contents"
#if [ ${SKIPTEST} -eq 0 ]; then
# N=0
# LogText "Test: Checking file /etc/motd contents for legal key words"
# for I in ${LEGAL_BANNER_STRINGS}; do
# FIND=$(${GREPBINARY} -i "${I}" /etc/motd)
# if [ ! "${FIND}" = "" ]; then
# LogText "Result: found string '${I}'"
# N=$((N + 1))
# fi
# done
# # Check if we have 5 or more key words
# if [ ${N} -gt 4 ]; then
# LogText "Result: Found ${N} key words, to warn unauthorized users"
# Display --indent 4 --text "- /etc/motd contents" --result "${STATUS_OK}" --color GREEN
# AddHP 2 2
# else
# LogText "Result: Found only ${N} key words, to warn unauthorized users and could be increased"
# Display --indent 4 --text "- /etc/motd contents" --result WEAK --color YELLOW
# ReportSuggestion ${TEST_NO} "Add legal banner to /etc/motd, to warn unauthorized users"
# AddHP 0 1
# 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 [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Checking file /etc/issue"
if [ -f /etc/issue ]; then
# Check for symlink
if [ -L /etc/issue ]; then
LogText "Result: file /etc/issue exists (symlink)"
Display --indent 2 --text "- /etc/issue" --result SYMLINK --color GREEN
else
Display --indent 2 --text "- /etc/issue" --result "${STATUS_FOUND}" --color GREEN
fi
else
LogText "Result: file /etc/issue does not exist"
Display --indent 2 --text "- /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 /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 [ ${SKIPTEST} -eq 0 ]; then
N=0
FILE="${ROOTDIR}etc/issue"
LogText "Test: Checking file ${FILE} contents for legal key words"
for I in ${LEGAL_BANNER_STRINGS}; do
FIND=$(${GREPBINARY} -i "${I}" ${FILE})
if [ ! -z "${FIND}" ]; then
LogText "Result: found string '${I}'"
N=$((N + 1))
fi
done
# Check if we have 5 or more key words
if [ ${N} -gt 4 ]; then
LogText "Result: Found ${N} 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 ${N} key words (5 or more suggested), to warn unauthorized users and could be increased"
Display --indent 4 --text "- ${FILE} contents" --result 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 [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Checking file /etc/issue.net"
if [ -f /etc/issue.net ]; then
# Check for symlink
if [ -L /etc/issue.net ]; then
LogText "Result: file /etc/issue.net exists (symlink)"
Display --indent 2 --text "- /etc/issue.net" --result SYMLINK --color GREEN
else
LogText "Result: file /etc/issue.net exists"
Display --indent 2 --text "- /etc/issue.net" --result "${STATUS_FOUND}" --color GREEN
fi
else
LogText "Result: file /etc/issue.net does not exist"
Display --indent 2 --text "- /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 /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
N=0
LogText "Test: Checking file /etc/issue.net contents for legal key words"
for I in ${LEGAL_BANNER_STRINGS}; do
FIND=$(${GREPBINARY} -i "${I}" /etc/issue.net)
if [ ! "${FIND}" = "" ]; then
LogText "Result: found string '${I}'"
N=$((N + 1))
fi
done
# Check if we have 5 or more key words
if [ ${N} -gt 4 ]; then
LogText "Result: Found ${N} key words, to warn unauthorized users"
Display --indent 4 --text "- /etc/issue.net contents" --result "${STATUS_OK}" --color GREEN
AddHP 2 2
else
LogText "Result: Found only ${N} key words, to warn unauthorized users and could be increased"
Display --indent 4 --text "- /etc/issue.net contents" --result 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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