GCP IAM - High privileged role added to service account
Id | 86112c4b-2535-4178-aa0e-ed9e32e3f054 |
Rulename | GCP IAM - High privileged role added to service account |
Description | Detects when high privileged role was added to service account. |
Severity | High |
Tactics | PrivilegeEscalation |
Techniques | T1078 |
Required data connectors | GCPIAMDataConnector |
Kind | Scheduled |
Query frequency | 15m |
Query period | 15m |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMHighPrivilegedRoleAdded.yaml |
Version | 1.0.0 |
Arm template | 86112c4b-2535-4178-aa0e-ed9e32e3f054.json |
let privileged_roles = dynamic(['roles/iam.securityAdmin', 'roles/secretmanager.admin', 'roles/secretmanager.secretAccessor', 'roles/apigateway.admin', 'roles/logging.admin', 'roles/iam.organizationRoleAdmin', 'roles/iam.roleAdmin', 'roles/iam.serviceAccountAdmin', 'roles/iam.serviceAccountCreator', 'roles/iam.serviceAccountKeyAdmin']);
GCP_IAM
| where PayloadMethodname =~ 'SetIamPolicy'
| extend action = parse_json(todynamic(PayloadServicedataPolicydeltaBindingdeltas))[0]['action']
| where action =~ 'ADD'
| extend role = parse_json(todynamic(PayloadServicedataPolicydeltaBindingdeltas))[0]['role']
| where role in~ (privileged_roles)
| project-away action
| extend timestamp = TimeGenerated, AccountCustomEntity = PayloadAuthenticationinfoPrincipalemail, IPCustomEntity = SrcIpAddr
kind: Scheduled
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMHighPrivilegedRoleAdded.yaml
severity: High
name: GCP IAM - High privileged role added to service account
entityMappings:
- entityType: Account
fieldMappings:
- columnName: AccountCustomEntity
identifier: FullName
- entityType: IP
fieldMappings:
- columnName: IPCustomEntity
identifier: Address
relevantTechniques:
- T1078
queryFrequency: 15m
triggerThreshold: 0
queryPeriod: 15m
description: |
'Detects when high privileged role was added to service account.'
id: 86112c4b-2535-4178-aa0e-ed9e32e3f054
version: 1.0.0
tactics:
- PrivilegeEscalation
query: |
let privileged_roles = dynamic(['roles/iam.securityAdmin', 'roles/secretmanager.admin', 'roles/secretmanager.secretAccessor', 'roles/apigateway.admin', 'roles/logging.admin', 'roles/iam.organizationRoleAdmin', 'roles/iam.roleAdmin', 'roles/iam.serviceAccountAdmin', 'roles/iam.serviceAccountCreator', 'roles/iam.serviceAccountKeyAdmin']);
GCP_IAM
| where PayloadMethodname =~ 'SetIamPolicy'
| extend action = parse_json(todynamic(PayloadServicedataPolicydeltaBindingdeltas))[0]['action']
| where action =~ 'ADD'
| extend role = parse_json(todynamic(PayloadServicedataPolicydeltaBindingdeltas))[0]['role']
| where role in~ (privileged_roles)
| project-away action
| extend timestamp = TimeGenerated, AccountCustomEntity = PayloadAuthenticationinfoPrincipalemail, IPCustomEntity = SrcIpAddr
status: Available
requiredDataConnectors:
- dataTypes:
- GCP_IAM
connectorId: GCPIAMDataConnector
triggerOperator: gt
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/86112c4b-2535-4178-aa0e-ed9e32e3f054')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/86112c4b-2535-4178-aa0e-ed9e32e3f054')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "GCP IAM - High privileged role added to service account",
"description": "'Detects when high privileged role was added to service account.'\n",
"severity": "High",
"enabled": true,
"query": "let privileged_roles = dynamic(['roles/iam.securityAdmin', 'roles/secretmanager.admin', 'roles/secretmanager.secretAccessor', 'roles/apigateway.admin', 'roles/logging.admin', 'roles/iam.organizationRoleAdmin', 'roles/iam.roleAdmin', 'roles/iam.serviceAccountAdmin', 'roles/iam.serviceAccountCreator', 'roles/iam.serviceAccountKeyAdmin']);\nGCP_IAM\n| where PayloadMethodname =~ 'SetIamPolicy'\n| extend action = parse_json(todynamic(PayloadServicedataPolicydeltaBindingdeltas))[0]['action']\n| where action =~ 'ADD'\n| extend role = parse_json(todynamic(PayloadServicedataPolicydeltaBindingdeltas))[0]['role']\n| where role in~ (privileged_roles)\n| project-away action\n| extend timestamp = TimeGenerated, AccountCustomEntity = PayloadAuthenticationinfoPrincipalemail, IPCustomEntity = SrcIpAddr\n",
"queryFrequency": "PT15M",
"queryPeriod": "PT15M",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"PrivilegeEscalation"
],
"techniques": [
"T1078"
],
"alertRuleTemplateName": "86112c4b-2535-4178-aa0e-ed9e32e3f054",
"customDetails": null,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"identifier": "FullName",
"columnName": "AccountCustomEntity"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"identifier": "Address",
"columnName": "IPCustomEntity"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMHighPrivilegedRoleAdded.yaml",
"status": "Available",
"templateVersion": "1.0.0"
}
}
]
}