SNMP traps enabled settings do not match across cluster members-checkpoint-gaia,ipso

high-availability
gaiaipso
checkpoint
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SNMP traps enabled settings do not match across cluster members-checkpoint-gaia,ipso
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#1

SNMP traps enabled settings do not match across cluster members-checkpoint-gaia,ipso

Vendor: checkpoint

OS: gaia,ipso

Description:
Indeni will identify when two devices are part of a cluster and alert if the SNMP settings do not match.

Remediation Steps:
Ensure all of the SNMP settings are configured correctly on all cluster members.

How does this work?
Parse the GAiA configuration database in /config/active and retrieve the current configuration for SNMP.

Why is this important?
SNMP configuration should be the same across cluster members. indeni retrieves SNMP configuration to compare between them.

Without Indeni how would you find this?
An administrator could login and manually run the command.

chkp-clish-show_snmp_agent

#! META
name: chkp-clish-show_snmp_agent
description: Show all SNMP settings
type: monitoring
monitoring_interval: 60 minutes
requires:
    vendor: checkpoint
    or:
        -
            os.name: gaia
        -
            os.name: ipso

#! COMMENTS
snmp-enabled:
    skip-documentation: true

snmp-version:
    skip-documentation: true

snmp-contact:
    why: |
        If the wrong contact is specified in the SNMP settings, the network monitoring team might contact the wrong person or team when there is an issue.
    how: |
        Parse the GAiA configuration database in /config/active and retrieve the current configuration for SNMP.
    without-indeni: |
        An administrator could login and manually run the command.
    can-with-snmp: false
    can-with-syslog: false
    vendor-provided-management: |
        Listing SNMP information is only available from the command line interface and WebUI.

snmp-location:
    why: |
        The SNMP location is important, since it gives the administrator a fast and easy way to determine where it is located.
    how: |
        Parse the GAiA configuration database in /config/active and retrieve the current configuration for SNMP.
    without-indeni: |
        An administrator could login and manually run the command.
    can-with-snmp: false
    can-with-syslog: false
    vendor-provided-management: |
        Listing SNMP information is only available from the command line interface and WebUI.

snmp-communities:
    why: |
        If the default SNMP communities are configured, like "public" or "private" it could allow unauthorized clients to poll the device.
    how: |
        Parse the GAiA configuration database in /config/active and retrieve the current configuration for SNMP.
    without-indeni: |
        An administrator could login and manually run the command.
    can-with-snmp: false
    can-with-syslog: false
    vendor-provided-management: |
        Listing SNMP information is only available from the command line interface and WebUI.


snmp-traps-status:
    why: |
        SNMP configuration should be the same across cluster members. indeni retrieves SNMP configuration to compare between them.
    how: |
        Parse the GAiA configuration database in /config/active and retrieve the current configuration for SNMP.
    without-indeni: |
        An administrator could login and manually run the command.
    can-with-snmp: false
    can-with-syslog: false
    vendor-provided-management: |
        Listing SNMP information is only available from the command line interface and WebUI.

snmp-traps-receiver:
    why: |
        SNMP configuration should be the same across cluster members. indeni retrieves SNMP configuration to compare between them.
    how: |
        Parse the GAiA configuration database in /config/active and retrieve the current configuration for SNMP.
    without-indeni: |
        An administrator could login and manually run the command.
    can-with-snmp: false
    can-with-syslog: false
    vendor-provided-management: |
        Listing SNMP information is only available from the command line interface and WebUI.

snmp-users:
    why: |
        SNMP configuration should be the same across cluster members. indeni retrieves SNMP configuration to compare between them.
    how: |
        Parse the GAiA configuration database in /config/active and retrieve the current configuration for SNMP.
    without-indeni: |
        An administrator could login and manually run the command.
    can-with-snmp: false
    can-with-syslog: false
    vendor-provided-management: |
        Listing SNMP information is only available from the command line interface and WebUI.

unencrypted-snmp-configured:
    why: |
        If SNMP is not using version 3 only, this means that SNMP communication is not encrypted.
    how: |
        Parse the GAiA configuration database in /config/active and retrieve the current configuration for SNMP.
    without-indeni: |
        An administrator could login and manually run the command.
    can-with-snmp: false
    can-with-syslog: false
    vendor-provided-management: |
        Listing SNMP information is only available from the command line interface and WebUI.

#! REMOTE::SSH
${nice-path} -n 15 grep "snmp" /config/active

#! PARSER::AWK

BEGIN {
	snmpUnencrypted = "false"
	enableStatus = "false"
}

#process:snmpd t
/process:snmpd t/ {
	enableStatus = "true"
}

#snmp:version v1/v2/v3
/snmp:version/ {
	snmpVersion = $2
	if (snmpVersion != "v3-Only") {
		# SNMPv3 only is not set, which means unencrypted SNMP communication.
		snmpUnencrypted = "true"
	}
}

#snmp:community:public t
/snmp:community|snmp:writecommunity/ {
	split($1, splitArr, /:/)
	iCommunity++
	communities[iCommunity, "community"] = splitArr[3]
	
	if (splitArr[2] == "writecommunity") {
		communities[iCommunity, "permissions"] = "read-write"
	} else if (splitArr[2] == "community") {
		communities[iCommunity, "permissions"] = "read-only"
	}
}

#snmp:syscontact Mr\ Cool
/^snmp:syscontact/ {
	snmpContact = $0
	sub(/^snmp:syscontact /, "", snmpContact)
	# Remove escape chars
	gsub(/\\ /, " ", snmpContact)
	snmpContact = tolower(snmpContact)
}

#snmp:syslocation superduperlocation\ here
/snmp:syslocation/ {
	snmpLocation = $0
	gsub(/snmp:syslocation/, "", snmpLocation)
	# remove escape chars
	gsub(/\\ /, " ", snmpLocation)
	snmpLocation = trim(snmpLocation)
}

#snmp:traps:authorizationError on
# snmp:traps:NOKIA-IPSO-SYSTEM-MIB:systemtrapconfigurationsavechangeenable t
/snmp:traps:/ {
    sub(/(NOKIA-IPSO-SYSTEM-MIB|VRRP-MIB|rfc1157):/, "", $1) # In IPSO, there's the MIB name in the middle for some traps
	split($1,splitArr,/:/)
	trapName = trim(splitArr[3])
	if ($2 == "on" || $2 == "t") {
		trapStatus = "enabled"
	} else {
		trapStatus = "disabled"
	}
	
	iTrap++
	traps[iTrap, trapName] = trapStatus
}

#snmp:trap_rcv:1.1.1.1:version v2
#snmp:trap_rcv:1.1.1.1:community testcommunity
/snmp:trap_rcv:/ {
	split($1,splitArr,/:/)
	trapIp = splitArr[3]
	
	trapReciever[trapIp, "ip"] = trapIp
	if (trim(splitArr[4]) == "version") {
		trapReciever[trapIp, "version"] = $2
	} else if (trim(splitArr[4]) == "community") {
		trapReciever[trapIp, "community"] = $2
	}
}

#snmp:trapsPollingFrequency 100
/snmp:trapsPollingFrequency/ {
	iTrap++
	# Not supported in IPSO, ignored
	traps[iTrap, "pollingfrequency"] = $2
}

#snmp:v3:user:testuser:seclvl authPrivReq
/snmp:v3:user:.*seclvl/ {
	split($1,splitArr,/:/)
	user = splitArr[4]
	security = $2
	
	snmpUser[user, "username"] = user
	snmpUser[user, "security"] = security
	
	if (security == "authNoPriv") {
		# No encryption
		snmpUnencrypted = "true"
	}
}

#snmp:roUser:testuser t
#snmp:rwUser:testuser t
/(snmp:rwUser:|snmp:roUser:)/ {
	split($1,splitArr,/:/)
	user = splitArr[3]
	
	if (splitArr[2] == "rwUser") {
		snmpUser[user, "permissions"] = "ReadWrite"
	} else if (splitArr[2] == "roUser") {
		snmpUser[user, "permissions"] = "ReadOnly"
	}
}

END {
	# Only write SNMP data if SNMP is enabled.
	if (enableStatus != "true") {
		enableStatus = "false"
		writeComplexMetricString("snmp-enabled", null, enableStatus)
	} else if (enableStatus == "true") {
		writeComplexMetricString("snmp-enabled", null, enableStatus)
		writeComplexMetricObjectArray("snmp-communities", null, communities)
		writeComplexMetricObjectArray("snmp-traps-status", null, traps)
		writeComplexMetricObjectArray("snmp-traps-receiver", null, trapReciever)
		writeComplexMetricObjectArray("snmp-users", null, snmpUser)
		writeComplexMetricString("snmp-version", null, snmpVersion)
		writeComplexMetricStringWithLiveConfig("snmp-contact", null, snmpContact, "SNMP - Contact")
		writeComplexMetricStringWithLiveConfig("snmp-location", null, snmpLocation, "SNMP - Location")
		writeComplexMetricString("unencrypted-snmp-configured", null, snmpUnencrypted)
	} else {
		writeComplexMetricString("snmp-enabled", null, "false")
	}
}

cross_vendor_snmp_traps_enabled_comparison

package com.indeni.server.rules.library.templatebased.crossvendor

import com.indeni.server.rules.RuleContext
import com.indeni.server.rules.library.ConditionalRemediationSteps
import com.indeni.server.rules.library.templates.SnapshotComparisonTemplateRule
import com.indeni.server.sensor.models.managementprocess.alerts.dto.AlertSeverity

/**
  *
  */
case class CrossVendorSnmpTrapsEnabledComparison() extends SnapshotComparisonTemplateRule(
  ruleName = "cross_vendor_snmp_traps_enabled_comparison",
  ruleFriendlyName = "Clustered Devices: SNMP traps enabled settings do not match across cluster members",
  severity = AlertSeverity.INFO,
  ruleDescription = "Indeni will identify when two devices are part of a cluster and alert if the SNMP settings do not match.",
  metricName = "snmp-traps-status",
  isArray = true,
  alertDescription = "Devices that are part of a cluster should have the same SNMP configuration. Review the differences below.",
  baseRemediationText = "Ensure all of the SNMP settings are configured correctly on all cluster members.")(
  ConditionalRemediationSteps.VENDOR_JUNIPER ->
    """|1. On the device command line interface execute "show configuration snmp" command to review SNMP configuration.
       |2. For security reasons, it is highly recommended to use SNMP version 3.
       |3. Check if the community string is not set to "public".  This is commonly used as a default for SNMP community string and presents a security vulnerability.
       |4. Review the following article on Juniper TechLibrary for more information: <a target="_blank" href="https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/snmpv3-community-configuring-junos-nm.html">Configuring the SNMPv3 Community</a>.""".stripMargin
)