CEF moduleedit

This is a module for receiving Common Event Format (CEF) data over Syslog. When messages are received over the syslog protocol the syslog input will parse the header and set the timestamp value. Then the decode_cef processor is applied to parse the CEF encoded data. The decoded data is written into a cef object field. Lastly any Elastic Common Schema (ECS) fields that can be populated with the CEF data are populated.

Read the quick start to learn how to set up and run modules.

Configure the moduleedit

You can further refine the behavior of the cef module by specifying variable settings in the modules.d/cef.yml file, or overriding settings at the command line.

Variable settingsedit

Each fileset has separate variable settings for configuring the behavior of the module. If you don’t specify variable settings, the cef module uses the defaults.

For more information, see Configure variable settings. Also see Override input settings.

When you specify a setting at the command line, remember to prefix the setting with the module name, for example, cef.log.var.paths instead of log.var.paths.

log fileset settingsedit

var.syslog_host
The interface to listen to UDP based syslog traffic. Defaults to localhost. Set to 0.0.0.0 to bind to all available interfaces.
var.syslog_port
The UDP port to listen for syslog traffic. Defaults to 9003

Ports below 1024 require Filebeat to run as root.

Forcepoint NGFW Security Management Centeredit

This module will process CEF data from Forcepoint NGFW Security Management Center (SMC). In the SMC configure the logs to be forwarded to the address set in var.syslog_host in format CEF and service UDP on var.syslog_port. Instructions can be found in KB 15002 for configuring the SMC. Testing was done with CEF logs from SMC version 6.6.1 and custom string mappings were taken from CEF Connector Configuration Guide dated December 5, 2011.

Check Point devicesedit

This module will parse CEF data form Check Point devices as documented in Log Exporter CEF Field Mappings.

Check Point CEF extensions are mapped as follows:

CEF Extension CEF Label value ECS Fields Non-ECS Field

cp_app_risk

-

event.risk_score

checkpoint.app_risk

cp_severity

-

event.severity

checkpoint.severity

baseEventCount

-

-

checkpoint.event_count

deviceExternalId

-

observer.type

-

deviceFacility

-

observer.type

-

deviceInboundInterface

-

observer.ingress.interface.name

-

deviceOutboundInterface

-

observer.egress.interface.name

-

externalId

-

-

checkpoint.uuid

fileHash

-

file.hash.{md5,sha1}

checkpoint.file_hash

reason

-

-

checkpoint.termination_reason

checkrequestCookies

-

-

checkpoint.cookie

sourceNtDomain

-

dns.question.name

-

Signature

-

vulnerability.id

-

Recipient

-

destination.user.email

-

Sender

-

source.user.email

-

deviceCustomFloatingPoint1

update version

observer.version

-

deviceCustomIPv6Address2

source ipv6 address

source.ip

-

deviceCustomIPv6Address3

destination ipv6 address

destination.ip

-

deviceCustomNumber1

elapsed time in seconds

host.uptime

-

email recipients number

-

checkpoint.email_recipients_num

payload

network.bytes

-

deviceCustomNumber2

icmp type

-

checkpoint.icmp_type

duration in seconds

event.duration

-

deviceCustomNumber3

icmp code

-

checkpoint.icmp_code

deviceCustomString1

connectivity state

-

checkpoint.connectivity_state

application rule name

rule.name

-

threat prevention rule name

rule.name

-

voip log type

-

checkpoint.voip_log_type

dlp rule name

rule.name

-

email id

-

checkpoint.email_id

deviceCustomString2

category

-

checkpoint.category

email subject

-

checkpoint.email_subject

sensor mode

-

checkpoint.sensor_mode

protection id

-

checkpoint.protection_id

scan invoke type

-

checkpoint.integrity_av_invoke_type

update status

-

checkpoint.update_status

peer gateway

-

checkpoint.peer_gateway

categories

rule.category

-

deviceCustomString6

application name

process.name

-

virus name

-

checkpoint.virus_name

malware name

-

checkpoint.malware_name

malware family

-

checkpoint.malware_family

deviceCustomString3

user group

group.name

-

incident extension

-

checkpoint.incident_extension

protection type

-

checkpoint.protection_type

email spool id

-

checkpoint.email_spool_id

identity type

-

checkpoint.identity_type

deviceCustomString4

malware status

-

checkpoint.spyware_status

threat prevention rule id

rule.id

-

scan result

-

checkpoint.scan_result

tcp flags

-

checkpoint.tcp_flags

destination os

os.name

-

protection name

-

checkpoint.protection_name

email control

-

checkpoint.email_control

frequency

-

checkpoint.frequency

user response

-

checkpoint.user_status

deviceCustomString5

matched category

rule.category

-

vlan id

network.vlan.id

-

authentication method

-

checkpoint.auth_method

email session id

-

checkpoint.email_session_id

deviceCustomDate2

subscription expiration

-

checkpoint.subscription_expiration

deviceFlexNumber1

confidence

-

checkpoint.confidence_level

deviceFlexNumber2

performance impact

-

checkpoint.performance_impact

destination phone number

-

checkpoint.dst_phone_number

flexString1

application signature id

-

checkpoint.app_sig_id

flexString2

malware action

event.action

-

attack information

event.action

-

rule_uid

-

rule.uuid

-

ifname

-

observer.ingress.interface.name

-

inzone

-

observer.ingress.zone

-

outzone

-

observer.egress.zone

-

product

-

observer.product

-

Fieldsedit

For a description of each field in the module, see the exported fields section.