Collect Juniper Junos logs

Supported in:

Google SecOps SIEM

Note: This feature is covered by Pre-GA Offerings Terms of the Google Security Operations Service Specific Terms. Pre-GA features might have limited support, and changes to pre-GA features might not be compatible with other pre-GA versions. For more information, see the Google Security Operations Technical Support Service guidelines and the Google Security Operations Service Specific Terms.

This document describes how you can collect Juniper Junos logs by using a Google Security Operations forwarder.

For more information, see Data ingestion to Google Security Operations.

An ingestion label identifies the parser which normalizes raw log data to structured UDM format. The information in this document applies to the parser with the JUNIPER_JUNOS ingestion label.

Configure structured logging for a Juniper Networks SRX device

Structured log format extracts information from log messages. The log format complies with the Syslog protocol.

1. Sign in to Juniper SRX CLI using SSH to its management IP address.
2. Type CLI at the shell prompt and press enter.
3. Type configure and press enter to get into the configuration mode of the device.
4. Enter the contact details or customer reference point.

5. To map the fields to the user account, run the following commands:

      set system syslog host FORWARDER_IP_ADDRESS any info
   
      set system syslog host FORWARDER_IP_ADDRESS structured-data
   
   

   Replace FORWARDER_IP_ADDRESS with the IP address of the Google Security Operations forwarder.

6. To enable the structured logging for security logs, use the following commands:

      set security log mode stream
   
      set security log source-address SRC_IP_ADDRESS
   
      set security log stream SYSLOG_STREAM_NAME host FORWARDER_IP_ADDRESS
   
      set security log stream SYSLOG_STREAM_NAME format sd-syslog
   
   

   Replace the following:

   • SRC_IP_ADDRESS: the IP address of the Juniper SRX device.

   • SYSLOG_STREAM_NAME: the name which is assigned to the syslog server.

   • FORWARDER_IP_ADDRESS: the IP address of the Google Security Operations forwarder.

7. Make sure that logging is enabled on all the security policies. To enable logging, run the following commands:

      set security policies from-zone <zone-name1> to-zone <zone-name2> policy <policy-name> then log session-close
   
      set security policies from-zone <zone-name1> to-zone <zone-name2> policy <policy-name> then log session-init
   
   

8. Configure the hostname on the device using the following command:

      set system host-name HOSTNAME
   
   

   Replace HOSTNAME with the assigned Juniper Networks SRX device.

9. Enter commit to save the executed commands in the configuration.

Configure Google Security Operations forwarder and syslog to ingest Juniper Junos logs

1. Select SIEM Settings > Forwarders.
2. Click Add new forwarder.
3. Enter a unique name in the Forwarder name field.
4. Click Submit and then click Confirm. The forwarder is added and the Add collector configuration window appears.
5. In the Collector name field, enter a unique name for the collector.
6. Select Juniper Junos as the Log type.
7. Select Syslog as the Collector type.
8. Configure the following input parameters:
   • Protocol: specify the protocol as UDP.
   • Address: specify the target IP address or hostname where the collector resides and listens for syslog data.
   • Port: specify the target port where the collector resides and listens for syslog data.
9. Click Submit.

For more information about Google Security Operations forwarders, see Google Security Operations forwarders documentation. For information about requirements for each forwarder type, see Forwarder configuration by type. If you encounter issues when you create forwarders, contact Google Security Operations support.

Field mapping reference

This parser extracts fields from Juniper JUNOS syslog messages, handling both key-value and non-key-value formats. It uses grok patterns to match various message structures, including firewall logs, SSH activity, and command executions, then maps the extracted fields to the UDM. The parser also handles CEF formatted logs using an include file and performs specific actions based on the message content, such as merging IP addresses and usernames into appropriate UDM fields.

UDM mapping table

Log Field	UDM Mapping	Logic
DPT	target.port	The destination port of the network connection, converted to an integer.
DST	target.ip	The destination IP address of the network connection.
FLAG	additional.fields{}.key: "FLAG", additional.fields{}.value.string_value: Value of FLAG	The TCP flag associated with the network connection.
ID	additional.fields{}.key: "ID", additional.fields{}.value.string_value: Value of ID	The IP identification field.
IN	additional.fields{}.key: "IN", additional.fields{}.value.string_value: Value of IN	The incoming network interface.
LEN	additional.fields{}.key: "LEN", additional.fields{}.value.string_value: Value of LEN	The length of the IP packet.
MAC	principal.mac	The MAC address extracted from the MAC field.
OUT	additional.fields{}.key: "OUT", additional.fields{}.value.string_value: Value of OUT	The outgoing network interface.
PREC	additional.fields{}.key: "PREC", additional.fields{}.value.string_value: Value of PREC	The Precedence field in the IP header.
PROTO	network.ip_protocol	The IP protocol used in the network connection.
RES	additional.fields{}.key: "RES", additional.fields{}.value.string_value: Value of RES	Reserved field in the TCP header.
SPT	principal.port	The source port of the network connection, converted to an integer.
SRC	principal.ip	The source IP address of the network connection.
TOS	additional.fields{}.key: "TOS", additional.fields{}.value.string_value: Value of TOS	The Type of Service field in the IP header.
TTL	network.dns.additional.ttl	Time To Live value, converted to an unsigned integer.
URGP	additional.fields{}.key: "URGP", additional.fields{}.value.string_value: Value of URGP	Urgent pointer field in the TCP header.
WINDOW	additional.fields{}.key: "WINDOW_SIZE", additional.fields{}.value.string_value: Value of WINDOW	The TCP window size.
action	security_result.action	The action taken by the firewall, extracted from the CEF message.
agt	observer.ip	The IP address of the agent.
amac	target.mac	The MAC address of the target, converted to lowercase and with hyphens replaced by colons.
app	target.application	The application involved in the event.
artz	observer.zone	The observer time zone.
atz	target.location.country_or_region	The target time zone.
categoryBehavior	additional.fields{}.key: "Category Behavior", additional.fields{}.value.string_value: Value of categoryBehavior with slashes removed	The category behavior.
categoryDeviceGroup	additional.fields{}.key: "Category Device Group", additional.fields{}.value.string_value: Value of categoryDeviceGroup with slashes removed	The category device group.
categoryObject	additional.fields{}.key: "Category Object", additional.fields{}.value.string_value: Value of categoryObject with slashes removed	The category object.
categoryOutcome	additional.fields{}.key: "Category Outcome", additional.fields{}.value.string_value: Value of categoryOutcome with slashes removed	The category outcome.
categorySignificance	additional.fields{}.key: "category Significance", additional.fields{}.value.string_value: Value of categorySignificance	The category significance.
command	target.process.command_line	The command executed.
cs1Label	additional.fields{}.key: cs1Label, additional.fields{}.value.string_value: Value of corresponding CEF field	Custom string field 1 label and value from the CEF message.
cs2Label	additional.fields{}.key: cs2Label, additional.fields{}.value.string_value: Value of corresponding CEF field	Custom string field 2 label and value from the CEF message.
cs3Label	additional.fields{}.key: cs3Label, additional.fields{}.value.string_value: Value of corresponding CEF field	Custom string field 3 label and value from the CEF message.
cs4Label	additional.fields{}.key: cs4Label, additional.fields{}.value.string_value: Value of corresponding CEF field	Custom string field 4 label and value from the CEF message.
cs5Label	additional.fields{}.key: cs5Label, additional.fields{}.value.string_value: Value of corresponding CEF field	Custom string field 5 label and value from the CEF message.
cs6Label	additional.fields{}.key: cs6Label, additional.fields{}.value.string_value: Value of corresponding CEF field	Custom string field 6 label and value from the CEF message.
dhost	target.hostname	Destination hostname.
deviceCustomString1	additional.fields{}.key: cs1Label, additional.fields{}.value.string_value: Value of deviceCustomString1	Device custom string 1.
deviceCustomString2	additional.fields{}.key: cs2Label, additional.fields{}.value.string_value: Value of deviceCustomString2	Device custom string 2.
deviceCustomString3	additional.fields{}.key: cs3Label, additional.fields{}.value.string_value: Value of deviceCustomString3	Device custom string 3.
deviceCustomString4	additional.fields{}.key: cs4Label, additional.fields{}.value.string_value: Value of deviceCustomString4	Device custom string 4.
deviceCustomString5	additional.fields{}.key: cs5Label, additional.fields{}.value.string_value: Value of deviceCustomString5	Device custom string 5.
deviceCustomString6	additional.fields{}.key: cs6Label, additional.fields{}.value.string_value: Value of deviceCustomString6	Device custom string 6.
deviceDirection	network.direction	The direction of the network traffic.
deviceEventClassId	additional.fields{}.key: "eventId", additional.fields{}.value.string_value: Value of deviceEventClassId	The device event class ID.
deviceFacility	observer.product.subproduct	The device facility.
deviceProcessName	about.process.command_line	The device process name.
deviceSeverity	security_result.severity	The device severity.
deviceTimeZone	observer.zone	The device time zone.
deviceVendor	metadata.vendor_name	The device vendor.
deviceVersion	metadata.product_version	The device version.
dpt	target.port	The destination port.
dst	target.ip	The destination IP address.
duser	target.user.user_display_name	The destination user.
eventId	additional.fields{}.key: "eventId", additional.fields{}.value.string_value: Value of eventId	Event ID.
event_time	metadata.event_timestamp	The time the event occurred, parsed from the message.
firewall_action	security_result.action_details	The firewall action taken.
host	principal.hostname, intermediary.hostname	The hostname of the device generating the log. Used for both principal and intermediary in different cases.
msg	security_result.summary	The message associated with the event, used as a summary for the security result.
name	metadata.product_event_type	The name of the event.
process_name	additional.fields{}.key: "process_name", additional.fields{}.value.string_value: Value of process_name	The name of the process.
p_id	target.process.pid	The process ID, converted to a string.
sha256	principal.process.file.sha256	The SHA256 hash of a file, extracted from the SSH2 key information.
shost	principal.hostname	Source hostname.
source_address	principal.ip	The source IP address.
source_port	principal.port	The source port, converted to an integer.
src	principal.ip	The source IP address.
src_ip	principal.ip	The source IP address.
src_port	principal.port	The source port, converted to an integer.
ssh2	security_result.detection_fields{}.key: "ssh2", security_result.detection_fields{}.value: Value of ssh2	SSH2 key information.
subtype	metadata.product_event_type	The subtype of the event.
task_summary	security_result.description	The task summary, used as the description for the security result.
timestamp	metadata.event_timestamp	The timestamp of the event.
user	target.user.userid	The user associated with the event.
username	principal.user.userid	The username associated with the event.
user_name	principal.user.userid	The username.
	metadata.vendor_name	Hardcoded to "Juniper Firewall". Hardcoded to "Juniper Firewall". Hardcoded to "JUNIPER_JUNOS". Determined by parser logic based on log content. Defaults to "STATUS_UPDATE" if not a CEF message and no other specific event type is identified. Set to "NETWORK_HTTP" for CEF messages. If no desc field is present, this field is populated with the message_description extracted from the raw log message.

Changes

2024-05-02

• Enhancement-
• Added Grok patterns to support new SYSLOG + KV format logs.

2023-10-25

• Enhancement-
• Added Grok patterns to parse unparsed logs.
• Mapped "source_port" to "principal.port".
• Mapped "source_address" to "principal.ip".
• Mapped "user_name" to "target.user.userid".
• Mapped "application_name" to "target.application".
• Mapped "p_id" to "target.process.pid".
• Added "invalid_pattern" check before KV mapping.
• Added a Grok pattern to map "security_result.description" when "description_present" is false.

2023-08-17

• Enhancement-
• Added Grok pattern to parsed unparsed logs.
• Mapped "msg" to "security_result.summary".
• Mapped "src_ip" to "principal.ip".
• Mapped "user" to "target.user.userid".
• Mapped "username" to "principal.user.userid".
• Mapped "command" to "target.process.command_line".
• Mapped "src_port" to "principal.port".
• Mapped "ssh2" to "security_result.detection_fields".
• Mapped "sha256" to "principal.process.file.sha256".
• Mapped "desc" to "sec_result.summary".
• Mapped "mac-address" to "principal.mac".
• Mapped "host" to "principal.hostname" if event_type is "STATUS_UPDATE".

2023-01-15

• Enhancement-
• Modified Grok pattern to support unparsed logs containing type "UI_CMDLINE_READ_LINE", "UI_COMMIT_PROGRESS", "UI_CHILD_START",
• "UI_CFG_AUDIT_OTHER", "UI_LOGIN_EVENT", "UI_CHILD_STATUS", "UI_LOGOUT_EVENT", "UI_LOAD_EVENT",
• "JTASK_IO_CONNECT_FAILED", "UI_AUTH_EVENT", "UI_NETCONF_CMD", "UI_COMMIT_NO_MASTER_PASSWORD", "UI_CFG_AUDIT_SET", "UI_JUNOSCRIPT_CMD",
• "SNMPD_AUTH_FAILURE", "UI_CFG_AUDIT_NEW", "UI_COMMIT" , "LIBJNX_LOGIN_ACCOUNT_LOCKED", "UI_COMMIT_COMPLETED",
• "PAM_USER_LOCK_LOGIN_REQUESTS_DENIED", "RTPERF_CPU_USAGE_OK", "RTPERF_CPU_THRESHOLD_EXCEEDED", "LIBJNX_LOGIN_ACCOUNT_UNLOCKED",
• "JSRPD_SET_OTHER_INTF_MON_FAIL", "JSRPD_SET_SCHED_MON_FAILURE", "UI_CHILD_WAITPID", "UI_DBASE_LOGIN_EVENT".

2022-05-02

• New default parser.