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GCP 4.01; Ensure that instances are not configured to use the default…
… service account with full access to all Cloud APIs
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policies/templates/gcp_compute_default_service_account_v1.yaml
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# Copyright 2019 Google LLC | ||
# | ||
# Licensed under the Apache License, Version 2.0 (the "License"); | ||
# you may not use this file except in compliance with the License. | ||
# You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
# See the License for the specific language governing permissions and | ||
# limitations under the License. | ||
# | ||
|
||
apiVersion: templates.gatekeeper.sh/v1alpha1 | ||
kind: ConstraintTemplate | ||
metadata: | ||
name: gcp-compute-default-service-account-v1 | ||
spec: | ||
crd: | ||
spec: | ||
names: | ||
kind: GCPComputeDefaultServiceAccountConstraintV1 | ||
plural: gcpcomputedefaultserviceaccountconstraintsv1 | ||
validation: | ||
openAPIV3Schema: | ||
properties: {} | ||
targets: | ||
validation.gcp.forsetisecurity.org: | ||
rego: | #INLINE("validator/compute_default_service_account.rego") | ||
# | ||
# Copyright 2019 Google LLC | ||
# | ||
# Licensed under the Apache License, Version 2.0 (the "License"); | ||
# you may not use this file except in compliance with the License. | ||
# You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
# See the License for the specific language governing permissions and | ||
# limitations under the License. | ||
# | ||
package templates.gcp.GCPComputeDefaultServiceAccountConstraintV1 | ||
import data.validator.gcp.lib as lib | ||
deny[{ | ||
"msg": message, | ||
"details": metadata, | ||
}] { | ||
constraint := input.constraint | ||
asset := input.asset | ||
asset.asset_type == "compute.googleapis.com/Instance" | ||
service_account := asset.resource.data.serviceAccount[_] | ||
scope := service_account.scope[_] | ||
scope == "https://www.googleapis.com/auth/cloud-platform" | ||
message := sprintf("Instance %v has default service account with full access to all Cloud APIs.", [asset.name]) | ||
metadata := {"resource": asset.name} | ||
} | ||
#ENDINLINE |
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# Copyright 2019 Google LLC | ||
# | ||
# Licensed under the Apache License, Version 2.0 (the "License"); | ||
# you may not use this file except in compliance with the License. | ||
# You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
# See the License for the specific language governing permissions and | ||
# limitations under the License. | ||
# | ||
apiVersion: constraints.gatekeeper.sh/v1alpha1 | ||
kind: GCPComputeDefaultServiceAccountConstraintV1 | ||
metadata: | ||
name: compute_default_service_account | ||
annotations: | ||
description: Ensure that instances are not configured to use the default service account with full access to all Cloud APIs | ||
# This constraint is not certified by CIS. | ||
bundles.validator.forsetisecurity.org/cis-v1.1: 4.01 | ||
spec: | ||
severity: high | ||
match: | ||
gcp: | ||
target: ["organization/*"] | ||
parameters: {} |
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# | ||
# Copyright 2019 Google LLC | ||
# | ||
# Licensed under the Apache License, Version 2.0 (the "License"); | ||
# you may not use this file except in compliance with the License. | ||
# You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
# See the License for the specific language governing permissions and | ||
# limitations under the License. | ||
# | ||
|
||
package templates.gcp.GCPComputeDefaultServiceAccountConstraintV1 | ||
|
||
import data.validator.gcp.lib as lib | ||
|
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deny[{ | ||
"msg": message, | ||
"details": metadata, | ||
}] { | ||
constraint := input.constraint | ||
asset := input.asset | ||
|
||
asset.asset_type == "compute.googleapis.com/Instance" | ||
service_account := asset.resource.data.serviceAccount[_] | ||
scope := service_account.scope[_] | ||
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scope == "https://www.googleapis.com/auth/cloud-platform" | ||
|
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message := sprintf("Instance %v has default service account with full access to all Cloud APIs.", [asset.name]) | ||
metadata := {"resource": asset.name} | ||
} |
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# | ||
# Copyright 2019 Google LLC | ||
# | ||
# Licensed under the Apache License, Version 2.0 (the "License"); | ||
# you may not use this file except in compliance with the License. | ||
# You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
# See the License for the specific language governing permissions and | ||
# limitations under the License. | ||
# | ||
|
||
package templates.gcp.GCPComputeDefaultServiceAccountConstraintV1 | ||
|
||
import data.validator.gcp.lib as lib | ||
|
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all_violations[violation] { | ||
resource := data.test.fixtures.compute_default_service_account.assets[_] | ||
constraint := data.test.fixtures.compute_default_service_account.constraints | ||
|
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issues := deny with input.asset as resource | ||
with input.constraint as constraint | ||
|
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violation := issues[_] | ||
} | ||
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test_violations_basic { | ||
violation_resources := {r | r = all_violations[_].details.resource} | ||
violation_resources == {"//compute.googleapis.com/projects/test-project/zones/us-east1-c/instances/vm-default"} | ||
} |
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validator/test/fixtures/compute_default_service_account/assets/data.json
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[ | ||
{ | ||
"name": "//compute.googleapis.com/projects/test-project/zones/us-east1-c/instances/vm-default", | ||
"asset_type": "compute.googleapis.com/Instance", | ||
"resource": { | ||
"version": "v1", | ||
"discovery_document_uri": "https://www.googleapis.com/discovery/v1/apis/compute/v1/rest", | ||
"discovery_name": "Instance", | ||
"parent": "//cloudresourcemanager.googleapis.com/projects/68478495408", | ||
"data": { | ||
"canIpForward": false, | ||
"cpuPlatform": "Intel Haswell", | ||
"creationTimestamp": "2018-01-18T12:16:22.261-08:00", | ||
"deletionProtection": false, | ||
"disk": [ | ||
{ | ||
"autoDelete": true, | ||
"boot": true, | ||
"deviceName": "persistent-disk-0", | ||
"guestOsFeature": [ | ||
{ | ||
"type": "VIRTIO_SCSI_MULTIQUEUE" | ||
} | ||
], | ||
"index": 0, | ||
"interface": "SCSI", | ||
"license": [ | ||
"https://www.googleapis.com/compute/v1/projects/debian-cloud/global/licenses/debian-9-stretch" | ||
], | ||
"mode": "READ_WRITE", | ||
"source": "https://www.googleapis.com/compute/v1/projects/test-project/zones/us-east1-c/disks/vm-no-ip", | ||
"type": "PERSISTENT" | ||
} | ||
], | ||
"id": "8987947392482197114", | ||
"labelFingerprint": "42WmSpB8rSM=", | ||
"machineType": "https://www.googleapis.com/compute/v1/projects/test-project/zones/us-east1-c/machineTypes/g1-small", | ||
"name": "vm-no-ip", | ||
"networkInterfaces": [ | ||
{ | ||
"fingerprint": "+QCnSman4bQ=", | ||
"ipAddress": "10.1.0.2", | ||
"name": "nic0", | ||
"network": "https://www.googleapis.com/compute/v1/projects/test-project/global/networks/default", | ||
"subnetwork": "https://www.googleapis.com/compute/v1/projects/test-project/regions/us-east1/subnetworks/default-us-east1" | ||
} | ||
], | ||
"scheduling": { | ||
"automaticRestart": true, | ||
"onHostMaintenance": "MIGRATE", | ||
"preemptible": false | ||
}, | ||
"selfLink": "https://www.googleapis.com/compute/v1/projects/test-project/zones/us-east1-c/instances/vm-no-ip", | ||
"serviceAccount": [ | ||
{ | ||
"email": "[email protected]", | ||
"scope": [ | ||
"https://www.googleapis.com/auth/cloud-platform" | ||
] | ||
} | ||
], | ||
"startRestricted": false, | ||
"status": "RUNNING", | ||
"tags": { | ||
"fingerprint": "42WmSpB8rSM=" | ||
}, | ||
"zone": "https://www.googleapis.com/compute/v1/projects/test-project/zones/us-east1-c" | ||
} | ||
} | ||
}, | ||
{ | ||
"name": "//compute.googleapis.com/projects/test-project/zones/us-east1-b/instances/vm-nondefault", | ||
"asset_type": "compute.googleapis.com/Instance", | ||
"resource": { | ||
"version": "v1", | ||
"discovery_document_uri": "https://www.googleapis.com/discovery/v1/apis/compute/v1/rest", | ||
"discovery_name": "Instance", | ||
"parent": "//cloudresourcemanager.googleapis.com/projects/68478495408", | ||
"data": { | ||
"canIpForward": true, | ||
"cpuPlatform": "Unknown CPU Platform", | ||
"creationTimestamp": "2018-06-20T14:46:40.689-07:00", | ||
"deletionProtection": false, | ||
"description": "", | ||
"disk": [ | ||
{ | ||
"autoDelete": true, | ||
"boot": true, | ||
"deviceName": "vm-shielded", | ||
"guestOsFeature": [ | ||
{ | ||
"type": "VIRTIO_SCSI_MULTIQUEUE" | ||
} | ||
], | ||
"index": 0, | ||
"interface": "SCSI", | ||
"license": [ | ||
"https://www.googleapis.com/compute/v1/projects/debian-cloud/global/licenses/debian-9-stretch" | ||
], | ||
"mode": "READ_WRITE", | ||
"source": "https://www.googleapis.com/compute/v1/projects/test-project/zones/us-east1-b/disks/vm-shielded", | ||
"type": "PERSISTENT" | ||
} | ||
], | ||
"id": "108591614595134928", | ||
"labelFingerprint": "42WmSpB8rSM=", | ||
"machineType": "https://www.googleapis.com/compute/v1/projects/test-project/zones/us-east1-b/machineTypes/n1-standard-1", | ||
"name": "vm-shielded", | ||
"networkInterfaces": [ | ||
{ | ||
"accessConfigs": [ | ||
{ | ||
"externalIp": "35.196.151.107", | ||
"name": "external-nat", | ||
"networkTier": "PREMIUM", | ||
"type": "ONE_TO_ONE_NAT" | ||
} | ||
], | ||
"fingerprint": "FKYLBaTiCF0=", | ||
"ipAddress": "10.142.0.2", | ||
"name": "nic0", | ||
"network": "https://www.googleapis.com/compute/v1/projects/test-project/global/networks/default", | ||
"subnetwork": "https://www.googleapis.com/compute/v1/projects/test-project/regions/us-east1/subnetworks/default" | ||
} | ||
], | ||
"scheduling": { | ||
"automaticRestart": true, | ||
"onHostMaintenance": "MIGRATE", | ||
"preemptible": false | ||
}, | ||
"selfLink": "https://www.googleapis.com/compute/v1/projects/test-project/zones/us-east1-b/instances/vm-nondefault", | ||
"serviceAccount": [ | ||
{ | ||
"email": "[email protected]", | ||
"scope": [ | ||
] | ||
} | ||
], | ||
"startRestricted": false, | ||
"status": "TERMINATED", | ||
"tags": { | ||
"fingerprint": "42WmSpB8rSM=" | ||
}, | ||
"zone": "https://www.googleapis.com/compute/v1/projects/test-project/zones/us-east1-b" | ||
} | ||
} | ||
} | ||
] |
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validator/test/fixtures/compute_default_service_account/constraints/data.yaml
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# Copyright 2019 Google LLC | ||
# | ||
# Licensed under the Apache License, Version 2.0 (the "License"); | ||
# you may not use this file except in compliance with the License. | ||
# You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
# See the License for the specific language governing permissions and | ||
# limitations under the License. | ||
# | ||
apiVersion: constraints.gatekeeper.sh/v1alpha1 | ||
kind: GCPComputeDefaultServiceAccountConstraintV1 | ||
metadata: | ||
name: compute_default_service_account | ||
spec: | ||
severity: high | ||
match: | ||
gcp: | ||
target: ["organization/*"] | ||
parameters: {} |