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Use SSH configuration from sshd instead of configuration file, add more details to report

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This commit is contained in:
mboelen 2016-04-19 12:04:51 +02:00
parent e68d9e0dae
commit 0783b2fd4b
1 changed files with 18 additions and 12 deletions
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30
include/tests_ssh
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@ -86,13 +86,17 @@
#
# Test : SSH-7408
# Description : Check SSH specific defined options
#ReportDetails --test "${TEST_NO}" --key "-" --field "${tFINDkey}" --value "${tFINDcurvalue}" --preferredvalue "${tFINDexpvalue}" --description "${tFINDdesc}"
# Notes : Instead of parsing the configuration file, we query the SSH daemon itself
if [ ${SSH_DAEMON_RUNNING} -eq 1 -a ! "${SSH_DAEMON_CONFIG}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
Register --test-no SSH-7408 --preqs-met ${PREQS_MET} --weight L --network NO --description "Check SSH specific defined options"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Checking specific defined options in ${SSH_DAEMON_CONFIG}"
CreateTempFile
SSH_OPTIONS_FILE="${TEMP_FILE}"
${SSHDBINARY} -T > ${SSH_OPTIONS_FILE}
LogText "Test: Checking specific defined options in ${SSH_OPTIONS_FILE}"
## SSHOPTIONS scheme:
## <OptionName>:<ExpectedValue>,<MediumScoreValue>,<WeakValue>:<TestType>
##
@ -114,7 +118,6 @@
LoginGraceTime:120,240,480:<\
LogLevel:VERBOSE,INFO,:=\
MaxAuthTries:1,3,6:<\
MaxStartups:4,8,16:<\
MaxSessions:2,4,8:<\
PermitRootLogin:NO,WITHOUT-PASSWORD,YES:=\
PermitUserEnvironment:NO,,YES:=\
@ -129,20 +132,24 @@
VerifyReverseMapping:YES,,NO:=\
X11Forwarding:NO,,YES:="
# Disabled MaxStartups:4,8,16:<\ (needs fixing)
# Go through our list of options
for I in ${SSHOPS}; do
OPTIONNAME=`echo ${I} | cut -d ':' -f1`
OPTIONNAME_LOWER=`echo ${I} | cut -d ':' -f1 | awk '{ print tolower($1) }'`
EXPECTEDVALUE=`echo ${I} | cut -d ':' -f2 | cut -d',' -f1`
MEDIUMSCOREDVALUE=`echo ${I} | cut -d ':' -f2 | cut -d',' -f2`
WEAKVALUE=`echo ${I} | cut -d ':' -f2 | cut -d',' -f3`
TESTTYPE=`echo ${I} | cut -d ':' -f3`
RESULT="NONE"
# Get value and use the last occurrence
FOUNDVALUE=`awk -v OPT="${OPTIONNAME}" 'index($0, OPT) == 1 { print toupper($2) }' ${SSH_DAEMON_CONFIG} | tail -1`
LogText "Test: Checking ${OPTIONNAME} in ${SSH_DAEMON_CONFIG}"
FOUNDVALUE=`awk -v OPT="${OPTIONNAME_LOWER}" 'index($0, OPT) == 1 { print toupper($2) }' ${SSH_OPTIONS_FILE} | tail -1`
LogText "Test: Checking ${OPTIONNAME} in ${SSH_OPTIONS_FILE}"
if [ ! "${FOUNDVALUE}" = "" ]; then
LogText "Result: Option ${OPTIONNAME} found in ${SSH_DAEMON_CONFIG}"
LogText "Result: Option ${OPTIONNAME} value is ${FOUNDVALUE}"
LogText "Result: Option ${OPTIONNAME} found"
LogText "Result: Option ${OPTIONNAME} value is ${FOUNDVALUE}"
if [ "${TESTTYPE}" = "=" ]; then
if [ "${FOUNDVALUE}" = "${EXPECTEDVALUE}" ]; then
@ -199,22 +206,21 @@
elif [ "${RESULT}" = "MIDSCORED" ]; then
LogText "Result: SSH option ${OPTIONNAME} is configured reasonably"
ReportSuggestion ${TEST_NO} "Consider hardening SSH configuration" "${OPTIONNAME} (${FOUNDVALUE} --> ${EXPECTEDVALUE})" "-"
ReportDetails --test "${TEST_NO}" --service "sshd" --field "${OPTIONNAME}" --value "${FOUNDVALUE}" --preferredvalue "${EXPECTEDVALUE}" --description "sshd option ${OPTIONNAME}"
Display --indent 4 --text "- SSH option: ${OPTIONNAME}" --result "MEDIUM" --color YELLOW
AddHP 1 3
elif [ "${RESULT}" = "WEAK" ]; then
LogText "Result: SSH option ${OPTIONNAME} is in a weak configuration state and should be fixed"
#ReportWarning ${TEST_NO} "M" "Unsafe configured SSH option: ${OPTIONNAME}"
ReportSuggestion ${TEST_NO} "Consider hardening SSH configuration" "${OPTIONNAME} (${FOUNDVALUE} --> ${EXPECTEDVALUE})" "-"
ReportDetails --test "${TEST_NO}" --key "sshd_config" --field "${OPTIONNAME}" --value "${FOUNDVALUE}" --preferredvalue "${EXPECTEDVALUE}" --description "sshd option ${OPTIONNAME}"
ReportDetails --test "${TEST_NO}" --service "sshd" --field "${OPTIONNAME}" --value "${FOUNDVALUE}" --preferredvalue "${EXPECTEDVALUE}" --description "sshd option ${OPTIONNAME}"
Display --indent 4 --text "- SSH option: ${OPTIONNAME}" --result WARNING --color RED
AddHP 0 3
elif [ "${RESULT}" = "UNKNOWN" ]; then
LogText "Result: Value of SSH option ${OPTIONNAME} is unknown (not defined)"
Display --indent 4 --text "- SSH option: ${OPTIONNAME}" --result DEFAULT --color WHITE
#ReportException "SSH-7408:01" "Unknown SSH option"
Report "unknown_config_option[]=ssh|$SSH_DAEMON_CONFIG}|${OPTIONNAME}|"
else
LogText "Result: Option ${OPTIONNAME} not found in ${SSH_DAEMON_CONFIG}"
LogText "Result: Option ${OPTIONNAME} not found in output"
Display --indent 4 --text "- SSH option: ${OPTIONNAME}" --result "NOT FOUND" --color WHITE
fi