Collect Cloud Identity Devices 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 guide will explain how to export Cloud Identity Devices logs into Google Security Operations using Cloud Storage. The parser extracts fields from JSON logs, transforms specific fields like deviceType and dates, and maps them to the UDM, creating an asset_entity representing the device and enriching it with hardware and metadata information.

Before You Begin

• Ensure that Google Cloud Identity is enabled in your Google Cloud project.
• Ensure that you have a Google SecOps instance.
• Ensure that you have privileged access to Google Cloud Identity and Cloud Logging.

Create a Cloud Storage bucket

1. Sign in to the Google Cloud console.

2. Go to the Cloud Storage Buckets page.

   Go to Buckets

3. Click Create.

4. On the Create a bucket page, enter your bucket information. After each of the following steps, click Continue to proceed to the next step:

   1. In the Get started section, do the following:

      1. Enter a unique name that meets the bucket name requirements; for example, gcp-cloudidentity-devices-logs.

      2. To enable hierarchical namespace, click the expander arrow to expand the Optimize for file oriented and data-intensive workloads section, and then select Enable Hierarchical namespace on this bucket.

         Note: You cannot enable hierarchical namespace on an existing bucket.

      3. To add a bucket label, click the expander arrow to expand the Labels section.

      4. Click Add label, and specify a key and a value for your label.

   2. In the Choose where to store your data section, do the following:

      1. Select a Location type.

      2. Use the location type menu to select a Location where object data within your bucket will be permanently stored.

         Note: If you select the dual-region location type, you can also choose to enable turbo replication by using the relevant checkbox.

      3. To set up cross-bucket replication, expand the Set up cross-bucket replication section.

   3. In the Choose a storage class for your data section, either select a default storage class for the bucket, or select Autoclass for automatic storage class management of your bucket's data.

   4. In the Choose how to control access to objects section, select not to enforce public access prevention, and select an access control model for your bucket's objects.

      Note: If public access prevention is already enforced by your project's organization policy, the Prevent public access checkbox is locked.

   5. In the Choose how to protect object data section, do the following:

      1. Select any of the options under Data protection that you want to set for your bucket.
      2. To choose how your object data will be encrypted, click the expander arrow labeled Data encryption, and select a Data encryption method.

5. Click Create.

Note: Be sure to provide your Google SecOps service account with permissions to Read or Read & Write to the newly created bucket.

ConfigureCloud Identity Devices Logs Export

1. Sign in to the Google Cloud console.
2. Go to Logging > Log Router.
3. Click Create Sink.

4. Provide the following configuration parameters:

   • Sink Name: enter a meaningful name; for example, cloud-identity-devices-logs-sink.
   • Sink Destination: select Cloud Storage Storage and enter the URI for your bucket; for example, gs://gcp-cloudidentity-devices-logs.

   • Log Filter:

     logName="projects/<your-project-id>/logs/cloudaudit.googleapis.com%2Factivity"
     resource.type="cloud_identity_device"
     

   • Set Export Options: include all log entries.

5. Click Create.

Configure permissions for Cloud Storage

1. Go to IAM & Admin > IAM.
2. Locate the Cloud Logging service account.
3. Grant the roles/storage.admin on the bucket.

Configure a feed in Google SecOps to ingest Cloud Identity Devices logs

1. Go to SIEM Settings > Feeds.
2. Click Add new.
3. In the Feed name field, enter a name for the feed; for example, GCP Cloud Identity Devices Logs.
4. Select Google Cloud Storage as the Source type.
5. Select GCP Cloud Identity Devices as the Log type.
6. Click Get Service Account next to the Chronicle Service Account field.
7. Click Next.

8. Specify values for the following input parameters:

   • Storage Bucket URI: Cloud Storage bucket URL; for example, gs://gcp-cloudidentity-devices-logs.
   • URI Is A: select Directory which includes subdirectories.

   • Source deletion options: select the deletion option according to your preference.

     Note: If you select the Delete transferred files or Delete transferred files and empty directories option, make sure that you granted appropriate permissions to the service account.

   • Asset namespace: the asset namespace.

   • Ingestion labels: the label applied to the events from this feed.

9. Click Next.

10. Review your new feed configuration in the Finalize screen, and then click Submit.

UDM Mapping Table

Log Field	UDM Mapping	Logic
createTime	entity.metadata.creation_timestamp	The value of createTime is parsed as a timestamp and mapped.
deviceId	entity.entity.asset.asset_id	Directly mapped.
deviceType	entity.entity.asset.platform_software.platform	Mapped to MAC if the original value is MAC_OS or IOS. Mapped to WINDOWS, MAC, or LINUX if the original value matches. Otherwise, set to UNKNOWN_PLATFORM.
encryptionState	entity.entity.asset.attribute.labels.key	Value is set to encryptionState. Used as part of a label.
encryptionState	entity.entity.asset.attribute.labels.value	Directly mapped. Used as part of a label.
lastSyncTime	entity.entity.asset.system_last_update_time	The value of lastSyncTime is parsed as a timestamp and mapped.
managementState	entity.entity.asset.attribute.labels.key	Value is set to managementState. Used as part of a label.
managementState	entity.entity.asset.attribute.labels.value	Directly mapped. Used as part of a label.
model	entity.entity.asset.hardware.model	Directly mapped.
name	entity.entity.asset.product_object_id	The portion after devices/ is extracted and mapped.
name	entity.entity.resource.name	Directly mapped.
osVersion	entity.entity.asset.platform_software.platform_version	Directly mapped.
securityPatchTime	entity.entity.asset.attribute.labels.key	Value is set to securityPatchTime. Used as part of a label.
securityPatchTime	entity.entity.asset.attribute.labels.value	Directly mapped. Used as part of a label.
serialNumber	entity.entity.asset.hardware.serial_number	Directly mapped. Copied from the top-level create_time field in the raw log. Value is set to ASSET. Value is set to GCP Cloud Identity Devices. Value is set to Google Cloud Platform. Copied from the top-level create_time field in the raw log.

Changes

2022-03-27

• Mapped resource.name to the long unique resource name name.

2022-04-13

• Newly created parser.

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