Microsoft Sentinel Analytic Rules
cloudbrothers.infoAzure Sentinel RepoToggle Dark/Light/Auto modeToggle Dark/Light/Auto modeToggle Dark/Light/Auto modeBack to homepage

GCP IAM - High privileged role added to service account

Back
Id86112c4b-2535-4178-aa0e-ed9e32e3f054
RulenameGCP IAM - High privileged role added to service account
DescriptionDetects when high privileged role was added to service account.
SeverityHigh
TacticsPrivilegeEscalation
TechniquesT1078
Required data connectorsGCPIAMDataConnector
KindScheduled
Query frequency15m
Query period15m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMHighPrivilegedRoleAdded.yaml
Version1.0.0
Arm template86112c4b-2535-4178-aa0e-ed9e32e3f054.json
Deploy To Azure
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"
      }
    }
  ]
}