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Audit log field reference

This page contains descriptions for all audit log fields.

Common attributes

The following attributes are logged for all event categories, independent of the layer.

Name	Description
`audit_format_version`	The audit log message format version.
`audit_category`	The audit log category. FAILED_LOGIN, MISSING_PRIVILEGES, BAD_HEADERS, SSL_EXCEPTION, OPENSEARCH_SECURITY_INDEX_ATTEMPT, AUTHENTICATED, or GRANTED_PRIVILEGES.
`audit_node_id`	The ID of the node where the event was generated.
`audit_node_name`	The name of the node where the event was generated.
`audit_node_host_address`	The host address of the node where the event was generated.
`audit_node_host_name`	The host name of the node where the event was generated.
`audit_request_layer`	The layer on which the event has been generated, either TRANSPORT or REST.
`audit_request_origin`	The layer from which the event originated, either TRANSPORT or REST.
`audit_request_effective_user_is_admin`	True if the request was made with a TLS admin certificate, otherwise false.

REST FAILED_LOGIN attributes

Name	Description
`audit_request_effective_user`	The username that failed to authenticate.
`audit_rest_request_path`	The REST endpoint URI.
`audit_rest_request_params`	The HTTP request parameters, if any.
`audit_rest_request_headers`	The HTTP headers, if any.
`audit_request_initiating_user`	The user that initiated the request. Only logged if it differs from the effective user.
`audit_request_body`	The HTTP request body, if any (and if request body logging is enabled).

REST AUTHENTICATED attributes

Name	Description
`audit_request_effective_user`	The username that failed to authenticate.
`audit_request_initiating_user`	The user that initiated the request. Only logged if it differs from the effective user.
`audit_rest_request_path`	The REST endpoint URI.
`audit_rest_request_params`	The HTTP request parameters, if any.
`audit_rest_request_headers`	The HTTP headers, if any.
`audit_request_body`	The HTTP request body, if any (and if request body logging is enabled).

REST SSL_EXCEPTION attributes

Name	Description
`audit_request_exception_stacktrace`	The stack trace of the SSL exception.

REST BAD_HEADERS attributes

Name	Description
`audit_rest_request_path`	The REST endpoint URI.
`audit_rest_request_params`	The HTTP request parameters, if any.
`audit_rest_request_headers`	The HTTP headers, if any.
`audit_request_body`	The HTTP request body, if any (and if request body logging is enabled).

Transport FAILED_LOGIN attributes

Name	Description
`audit_trace_task_id`	The ID of the request.
`audit_transport_headers`	The headers of the request, if any.
`audit_request_effective_user`	The username that failed to authenticate.
`audit_request_initiating_user`	The user that initiated the request. Only logged if it differs from the effective user.
`audit_transport_request_type`	The type of request (e.g. `IndexRequest`).
`audit_request_body`	The HTTP request body, if any (and if request body logging is enabled).
`audit_trace_indices`	The index name(s) included in the request. Can contain wildcards, date patterns, and aliases. Only logged if `resolve_indices` is true.
`audit_trace_resolved_indices`	The resolved index name(s) affected by the request. Only logged if `resolve_indices` is true.
`audit_trace_doc_types`	The document types affected by the request. Only logged if `resolve_indices` is true.

Transport AUTHENTICATED attributes

Name	Description
`audit_trace_task_id`	The ID of the request.
`audit_transport_headers`	The headers of the request, if any.
`audit_request_effective_user`	The username that failed to authenticate.
`audit_request_initiating_user`	The user that initiated the request. Only logged if it differs from the effective user.
`audit_transport_request_type`	The type of request (e.g. `IndexRequest`).
`audit_request_body`	The HTTP request body, if any (and if request body logging is enabled).
`audit_trace_indices`	The index name(s) included in the request. Can contain wildcards, date patterns, and aliases. Only logged if `resolve_indices` is true.
`audit_trace_resolved_indices`	The resolved index name(s) affected by the request. Only logged if `resolve_indices` is true.
`audit_trace_doc_types`	The document types affected by the request. Only logged if `resolve_indices` is true.

Transport MISSING_PRIVILEGES attributes

Name	Description
`audit_trace_task_id`	The ID of the request.
`audit_trace_task_parent_id`	The parent ID of this request, if any.
`audit_transport_headers`	The headers of the request, if any.
`audit_request_effective_user`	The username that failed to authenticate.
`audit_request_initiating_user`	The user that initiated the request. Only logged if it differs from the effective user.
`audit_transport_request_type`	The type of request (e.g. `IndexRequest`).
`audit_request_privilege`	The required privilege of the request (e.g. `indices:data/read/search`).
`audit_request_body`	The HTTP request body, if any (and if request body logging is enabled).
`audit_trace_indices`	The index name(s) included in the request. Can contain wildcards, date patterns, and aliases. Only logged if `resolve_indices` is true.
`audit_trace_resolved_indices`	The resolved index name(s) affected by the request. Only logged if `resolve_indices` is true.
`audit_trace_doc_types`	The document types affected by the request. Only logged if `resolve_indices` is true.

Transport GRANTED_PRIVILEGES attributes

Name	Description
`audit_trace_task_id`	The ID of the request.
`audit_trace_task_parent_id`	The parent ID of this request, if any.
`audit_transport_headers`	The headers of the request, if any.
`audit_request_effective_user`	The username that failed to authenticate.
`audit_request_initiating_user`	The user that initiated the request. Only logged if it differs from the effective user.
`audit_transport_request_type`	The type of request (e.g. `IndexRequest`).
`audit_request_privilege`	The required privilege of the request (e.g. `indices:data/read/search`).
`audit_request_body`	The HTTP request body, if any (and if request body logging is enabled).
`audit_trace_indices`	The index name(s) included in the request. Can contain wildcards, date patterns, and aliases. Only logged if `resolve_indices` is true.
`audit_trace_resolved_indices`	The resolved index name(s) affected by the request. Only logged if `resolve_indices` is true.
`audit_trace_doc_types`	The document types affected by the request. Only logged if `resolve_indices` is true.

Transport SSL_EXCEPTION attributes

Name	Description
`audit_request_exception_stacktrace`	The stack trace of the SSL exception.

Transport BAD_HEADERS attributes

Name	Description
`audit_trace_task_id`	The ID of the request.
`audit_trace_task_parent_id`	The parent ID of this request, if any.
`audit_transport_headers`	The headers of the request, if any.
`audit_request_effective_user`	The username that failed to authenticate.
`audit_request_initiating_user`	The user that initiated the request. Only logged if it differs from the effective user.
`audit_transport_request_type`	The type of request (e.g. `IndexRequest`).
`audit_request_body`	The HTTP request body, if any (and if request body logging is enabled).
`audit_trace_indices`	The index name(s) included in the request. Can contain wildcards, date patterns, and aliases. Only logged if `resolve_indices` is true.
`audit_trace_resolved_indices`	The resolved index name(s) affected by the request. Only logged if `resolve_indices` is true.
`audit_trace_doc_types`	The document types affected by the request. Only logged if `resolve_indices` is true.

Transport opensearch_SECURITY_INDEX_ATTEMPT attributes

Name	Description
`audit_trace_task_id`	The ID of the request.
`audit_transport_headers`	The headers of the request, if any.
`audit_request_effective_user`	The username that failed to authenticate.
`audit_request_initiating_user`	The user that initiated the request. Only logged if it differs from the effective user.
`audit_transport_request_type`	The type of request (e.g. `IndexRequest`).
`audit_request_body`	The HTTP request body, if any (and if request body logging is enabled).
`audit_trace_indices`	The index name(s) included in the request. Can contain wildcards, date patterns, and aliases. Only logged if `resolve_indices` is true.
`audit_trace_resolved_indices`	The resolved index name(s) affected by the request. Only logged if `resolve_indices` is true.
`audit_trace_doc_types`	The document types affected by the request. Only logged if `resolve_indices` is true.

Common attributes
REST FAILED_LOGIN attributes
REST AUTHENTICATED attributes
REST SSL_EXCEPTION attributes
REST BAD_HEADERS attributes
Transport FAILED_LOGIN attributes
Transport AUTHENTICATED attributes
Transport MISSING_PRIVILEGES attributes
Transport GRANTED_PRIVILEGES attributes
Transport SSL_EXCEPTION attributes
Transport BAD_HEADERS attributes
Transport opensearch_SECURITY_INDEX_ATTEMPT attributes

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