Microsoft Entra ID Role Management Permission Grant

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Id	1ff56009-db01-4615-8211-d4fda21da02d
Rulename	Microsoft Entra ID Role Management Permission Grant
Description	Identifies when the Microsoft Graph RoleManagement.ReadWrite.Directory (Delegated or Application) permission is granted to a service principal. This permission allows an application to read and manage the role-based access control (RBAC) settings for your company’s directory. An adversary could use this permission to add an Microsoft Entra ID object to an Admin directory role and escalate privileges. Ref : https://docs.microsoft.com/graph/permissions-reference#role-management-permissions Ref : https://docs.microsoft.com/graph/api/directoryrole-post-members?view=graph-rest-1.0&tabs=http
Severity	High
Tactics	Persistence Impact
Techniques	T1098.003 T1078.004
Required data connectors	AzureActiveDirectory
Kind	Scheduled
Query frequency	2h
Query period	2h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/AzureADRoleManagementPermissionGrant.yaml
Version	1.1.1
Arm template	1ff56009-db01-4615-8211-d4fda21da02d.json

KQL

AuditLogs
| where Category =~ "ApplicationManagement" and LoggedByService =~ "Core Directory" and OperationName in~ ("Add delegated permission grant", "Add app role assignment to service principal")
| mv-apply TargetResource = TargetResources on
  (
      where TargetResource.type =~ "ServicePrincipal" and array_length(TargetResource.modifiedProperties) > 0 and isnotnull(TargetResource.displayName)
      | extend props = TargetResource.modifiedProperties
  )
| mv-apply Property = props on
  (
      where Property.displayName in~ ("AppRole.Value","DelegatedPermissionGrant.Scope")
      | extend DisplayName = tostring(Property.displayName), PermissionGrant = trim('"',tostring(Property.newValue))
  )
| where PermissionGrant has "RoleManagement.ReadWrite.Directory"
| mv-apply Property = props on
  (
      where Property.displayName =~ "ServicePrincipal.DisplayName"
      | extend TargetAppDisplayName = trim('"',tostring(Property.newValue))
  )
| mv-apply Property = props on
  (
      where Property.displayName =~ "ServicePrincipal.ObjectID"
      | extend TargetAppServicePrincipalId = trim('"',tostring(Property.newValue))
  )
| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
| extend InitiatingIpAddress = tostring(iff(isnotempty(InitiatedBy.user.ipAddress), InitiatedBy.user.ipAddress, InitiatedBy.app.ipAddress))
| project TimeGenerated, OperationName, Result, PermissionGrant, TargetAppDisplayName, TargetAppServicePrincipalId, InitiatingAppName, InitiatingAppServicePrincipalId,
InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIpAddress, TargetResources, AdditionalDetails, CorrelationId
| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])

YAML

status: Available
triggerOperator: gt
triggerThreshold: 0
name: Microsoft Entra ID Role Management Permission Grant
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/AzureADRoleManagementPermissionGrant.yaml
queryPeriod: 2h
severity: High
tags:
- SimuLand
kind: Scheduled
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: TargetAppDisplayName
    identifier: Name
  - columnName: TargetAppServicePrincipalId
    identifier: AadUserId
- entityType: Account
  fieldMappings:
  - columnName: InitiatingAppName
    identifier: Name
  - columnName: InitiatingAppServicePrincipalId
    identifier: AadUserId
- entityType: Account
  fieldMappings:
  - columnName: InitiatingUserPrincipalName
    identifier: FullName
  - columnName: InitiatingAccountName
    identifier: Name
  - columnName: InitiatingAccountUPNSuffix
    identifier: UPNSuffix
- entityType: Account
  fieldMappings:
  - columnName: InitiatingAadUserId
    identifier: AadUserId
- entityType: IP
  fieldMappings:
  - columnName: InitiatingIpAddress
    identifier: Address
queryFrequency: 2h
relevantTechniques:
- T1098.003
- T1078.004
requiredDataConnectors:
- dataTypes:
  - AuditLogs
  connectorId: AzureActiveDirectory
description: |
  'Identifies when the Microsoft Graph RoleManagement.ReadWrite.Directory (Delegated or Application) permission is granted to a service principal.
  This permission allows an application to read and manage the role-based access control (RBAC) settings for your company's directory.
  An adversary could use this permission to add an Microsoft Entra ID object to an Admin directory role and escalate privileges.
  Ref : https://docs.microsoft.com/graph/permissions-reference#role-management-permissions
  Ref : https://docs.microsoft.com/graph/api/directoryrole-post-members?view=graph-rest-1.0&tabs=http'  
tactics:
- Persistence
- Impact
query: |
  AuditLogs
  | where Category =~ "ApplicationManagement" and LoggedByService =~ "Core Directory" and OperationName in~ ("Add delegated permission grant", "Add app role assignment to service principal")
  | mv-apply TargetResource = TargetResources on
    (
        where TargetResource.type =~ "ServicePrincipal" and array_length(TargetResource.modifiedProperties) > 0 and isnotnull(TargetResource.displayName)
        | extend props = TargetResource.modifiedProperties
    )
  | mv-apply Property = props on
    (
        where Property.displayName in~ ("AppRole.Value","DelegatedPermissionGrant.Scope")
        | extend DisplayName = tostring(Property.displayName), PermissionGrant = trim('"',tostring(Property.newValue))
    )
  | where PermissionGrant has "RoleManagement.ReadWrite.Directory"
  | mv-apply Property = props on
    (
        where Property.displayName =~ "ServicePrincipal.DisplayName"
        | extend TargetAppDisplayName = trim('"',tostring(Property.newValue))
    )
  | mv-apply Property = props on
    (
        where Property.displayName =~ "ServicePrincipal.ObjectID"
        | extend TargetAppServicePrincipalId = trim('"',tostring(Property.newValue))
    )
  | extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
  | extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
  | extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
  | extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
  | extend InitiatingIpAddress = tostring(iff(isnotempty(InitiatedBy.user.ipAddress), InitiatedBy.user.ipAddress, InitiatedBy.app.ipAddress))
  | project TimeGenerated, OperationName, Result, PermissionGrant, TargetAppDisplayName, TargetAppServicePrincipalId, InitiatingAppName, InitiatingAppServicePrincipalId,
  InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIpAddress, TargetResources, AdditionalDetails, CorrelationId
  | extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])  
id: 1ff56009-db01-4615-8211-d4fda21da02d
version: 1.1.1

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/1ff56009-db01-4615-8211-d4fda21da02d')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/1ff56009-db01-4615-8211-d4fda21da02d')]",
      "properties": {
        "alertRuleTemplateName": "1ff56009-db01-4615-8211-d4fda21da02d",
        "customDetails": null,
        "description": "'Identifies when the Microsoft Graph RoleManagement.ReadWrite.Directory (Delegated or Application) permission is granted to a service principal.\nThis permission allows an application to read and manage the role-based access control (RBAC) settings for your company's directory.\nAn adversary could use this permission to add an Microsoft Entra ID object to an Admin directory role and escalate privileges.\nRef : https://docs.microsoft.com/graph/permissions-reference#role-management-permissions\nRef : https://docs.microsoft.com/graph/api/directoryrole-post-members?view=graph-rest-1.0&tabs=http'\n",
        "displayName": "Microsoft Entra ID Role Management Permission Grant",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "TargetAppDisplayName",
                "identifier": "Name"
              },
              {
                "columnName": "TargetAppServicePrincipalId",
                "identifier": "AadUserId"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "InitiatingAppName",
                "identifier": "Name"
              },
              {
                "columnName": "InitiatingAppServicePrincipalId",
                "identifier": "AadUserId"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "InitiatingUserPrincipalName",
                "identifier": "FullName"
              },
              {
                "columnName": "InitiatingAccountName",
                "identifier": "Name"
              },
              {
                "columnName": "InitiatingAccountUPNSuffix",
                "identifier": "UPNSuffix"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "InitiatingAadUserId",
                "identifier": "AadUserId"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "InitiatingIpAddress",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/AzureADRoleManagementPermissionGrant.yaml",
        "query": "AuditLogs\n| where Category =~ \"ApplicationManagement\" and LoggedByService =~ \"Core Directory\" and OperationName in~ (\"Add delegated permission grant\", \"Add app role assignment to service principal\")\n| mv-apply TargetResource = TargetResources on\n  (\n      where TargetResource.type =~ \"ServicePrincipal\" and array_length(TargetResource.modifiedProperties) > 0 and isnotnull(TargetResource.displayName)\n      | extend props = TargetResource.modifiedProperties\n  )\n| mv-apply Property = props on\n  (\n      where Property.displayName in~ (\"AppRole.Value\",\"DelegatedPermissionGrant.Scope\")\n      | extend DisplayName = tostring(Property.displayName), PermissionGrant = trim('\"',tostring(Property.newValue))\n  )\n| where PermissionGrant has \"RoleManagement.ReadWrite.Directory\"\n| mv-apply Property = props on\n  (\n      where Property.displayName =~ \"ServicePrincipal.DisplayName\"\n      | extend TargetAppDisplayName = trim('\"',tostring(Property.newValue))\n  )\n| mv-apply Property = props on\n  (\n      where Property.displayName =~ \"ServicePrincipal.ObjectID\"\n      | extend TargetAppServicePrincipalId = trim('\"',tostring(Property.newValue))\n  )\n| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)\n| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)\n| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)\n| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)\n| extend InitiatingIpAddress = tostring(iff(isnotempty(InitiatedBy.user.ipAddress), InitiatedBy.user.ipAddress, InitiatedBy.app.ipAddress))\n| project TimeGenerated, OperationName, Result, PermissionGrant, TargetAppDisplayName, TargetAppServicePrincipalId, InitiatingAppName, InitiatingAppServicePrincipalId,\nInitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIpAddress, TargetResources, AdditionalDetails, CorrelationId\n| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, \"@\")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, \"@\")[1])\n",
        "queryFrequency": "PT2H",
        "queryPeriod": "PT2H",
        "severity": "High",
        "status": "Available",
        "subTechniques": [
          "T1098.003",
          "T1078.004"
        ],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact",
          "Persistence"
        ],
        "tags": [
          "SimuLand"
        ],
        "techniques": [
          "T1078",
          "T1098"
        ],
        "templateVersion": "1.1.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}