CEF module
Refer to the Elastic Integrations documentation.
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Elastic Agent is a single, unified way to add monitoring for logs, metrics, and other types of data to a host. It can also protect hosts from security threats, query data from operating systems, forward data from remote services or hardware, and more. Refer to the documentation for a detailed comparison of Beats and Elastic Agent.
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 configure and run modules.
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.
You must enable at least one fileset in the module. Filesets are disabled by default.
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 advanced use cases, you can also override input settings. 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.
var.syslog_host- The interface to listen to UDP based syslog traffic. Defaults to
localhost. Set to0.0.0.0to 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.
var.tags- A list of tags to include in events. Including
forwardedindicates that the events did not originate on this host and causeshost.nameto not be added to events. Defaults to[cef, forwarded]. var.timezone- IANA time zone name (e.g.
America/New_York) or fixed time offset (e.g.+0200) to use when parsing times from the CEF message that do not contain a time zone.Localmay be specified to use the machine’s local time zone. Defaults toUTC.
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.
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} | - | |
| reason | - | - | checkpoint.termination_reason | |
| requestCookies | - | - | 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 | event.duration | - | |
| 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 | network.application | - | |
| virus name | - | checkpoint.virus_name | ||
| malware name | - | checkpoint.spyware_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.subs_exp | |
| 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 | rule.description | - | |
| attack information | event.action | - | ||
| rule_uid | - | rule.uuid | - | |
| ifname | - | observer.ingress.interface.name | - | |
| inzone | - | observer.ingress.zone | - | |
| outzone | - | observer.egress.zone | - | |
| product | - | observer.product | - |
For a description of each field in the module, see the exported fields section.