zeek/doc/scripts/base/protocols/krb/main.zeek.rst
Patrick Kelley 8fd444092b initial
2025-05-07 15:35:15 -04:00

197 lines
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ReStructuredText

:tocdepth: 3
base/protocols/krb/main.zeek
============================
.. zeek:namespace:: KRB
Implements base functionality for KRB analysis. Generates the kerberos.log
file.
:Namespace: KRB
:Imports: :doc:`base/protocols/conn/removal-hooks.zeek </scripts/base/protocols/conn/removal-hooks.zeek>`, :doc:`base/protocols/krb/consts.zeek </scripts/base/protocols/krb/consts.zeek>`
Summary
~~~~~~~
Runtime Options
###############
==================================================================== =======================================================
:zeek:id:`KRB::ignored_errors`: :zeek:type:`set` :zeek:attr:`&redef` The server response error texts which are *not* logged.
==================================================================== =======================================================
Types
#####
=========================================== =
:zeek:type:`KRB::Info`: :zeek:type:`record`
=========================================== =
Redefinitions
#############
==================================================================== ====================================================
:zeek:type:`Log::ID`: :zeek:type:`enum`
* :zeek:enum:`KRB::LOG`
:zeek:type:`connection`: :zeek:type:`record`
:New Fields: :zeek:type:`connection`
krb: :zeek:type:`KRB::Info` :zeek:attr:`&optional`
:zeek:id:`likely_server_ports`: :zeek:type:`set` :zeek:attr:`&redef`
==================================================================== ====================================================
Events
######
=========================================== ===================================================================
:zeek:id:`KRB::log_krb`: :zeek:type:`event` Event that can be handled to access the KRB record as it is sent on
to the logging framework.
=========================================== ===================================================================
Hooks
#####
============================================================ ===========================
:zeek:id:`KRB::finalize_krb`: :zeek:type:`Conn::RemovalHook` Kerberos finalization hook.
:zeek:id:`KRB::log_policy`: :zeek:type:`Log::PolicyHook`
============================================================ ===========================
Detailed Interface
~~~~~~~~~~~~~~~~~~
Runtime Options
###############
.. zeek:id:: KRB::ignored_errors
:source-code: base/protocols/krb/main.zeek 54 54
:Type: :zeek:type:`set` [:zeek:type:`string`]
:Attributes: :zeek:attr:`&redef`
:Default:
::
{
"NEEDED_PREAUTH",
"Need to use PA-ENC-TIMESTAMP/PA-PK-AS-REQ"
}
The server response error texts which are *not* logged.
Types
#####
.. zeek:type:: KRB::Info
:source-code: base/protocols/krb/main.zeek 14 51
:Type: :zeek:type:`record`
ts: :zeek:type:`time` :zeek:attr:`&log`
Timestamp for when the event happened.
uid: :zeek:type:`string` :zeek:attr:`&log`
Unique ID for the connection.
id: :zeek:type:`conn_id` :zeek:attr:`&log`
The connection's 4-tuple of endpoint addresses/ports.
request_type: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
Request type - Authentication Service ("AS") or
Ticket Granting Service ("TGS")
client: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
Client
service: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
Service
success: :zeek:type:`bool` :zeek:attr:`&log` :zeek:attr:`&optional`
Request result
error_code: :zeek:type:`count` :zeek:attr:`&optional`
Error code
error_msg: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
Error message
from: :zeek:type:`time` :zeek:attr:`&log` :zeek:attr:`&optional`
Ticket valid from
till: :zeek:type:`time` :zeek:attr:`&log` :zeek:attr:`&optional`
Ticket valid till
cipher: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
Ticket encryption type
forwardable: :zeek:type:`bool` :zeek:attr:`&log` :zeek:attr:`&optional`
Forwardable ticket requested
renewable: :zeek:type:`bool` :zeek:attr:`&log` :zeek:attr:`&optional`
Renewable ticket requested
logged: :zeek:type:`bool` :zeek:attr:`&default` = ``F`` :zeek:attr:`&optional`
We've already logged this
client_cert: :zeek:type:`Files::Info` :zeek:attr:`&optional`
(present if :doc:`/scripts/base/protocols/krb/files.zeek` is loaded)
Client certificate
client_cert_subject: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
(present if :doc:`/scripts/base/protocols/krb/files.zeek` is loaded)
Subject of client certificate, if any
client_cert_fuid: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
(present if :doc:`/scripts/base/protocols/krb/files.zeek` is loaded)
File unique ID of client cert, if any
server_cert: :zeek:type:`Files::Info` :zeek:attr:`&optional`
(present if :doc:`/scripts/base/protocols/krb/files.zeek` is loaded)
Server certificate
server_cert_subject: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
(present if :doc:`/scripts/base/protocols/krb/files.zeek` is loaded)
Subject of server certificate, if any
server_cert_fuid: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
(present if :doc:`/scripts/base/protocols/krb/files.zeek` is loaded)
File unique ID of server cert, if any
auth_ticket: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
(present if :doc:`/scripts/policy/protocols/krb/ticket-logging.zeek` is loaded)
Hash of ticket used to authorize request/transaction
new_ticket: :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
(present if :doc:`/scripts/policy/protocols/krb/ticket-logging.zeek` is loaded)
Hash of ticket returned by the KDC
Events
######
.. zeek:id:: KRB::log_krb
:source-code: base/protocols/krb/main.zeek 68 68
:Type: :zeek:type:`event` (rec: :zeek:type:`KRB::Info`)
Event that can be handled to access the KRB record as it is sent on
to the logging framework.
Hooks
#####
.. zeek:id:: KRB::finalize_krb
:source-code: base/protocols/krb/main.zeek 71 71
:Type: :zeek:type:`Conn::RemovalHook`
Kerberos finalization hook. Remaining Kerberos info may get logged when it's called.
.. zeek:id:: KRB::log_policy
:source-code: base/protocols/krb/main.zeek 12 12
:Type: :zeek:type:`Log::PolicyHook`