User Assigned Privileged Role
Id | 050b9b3d-53d0-4364-a3da-1b678b8211ec |
Rulename | User Assigned Privileged Role |
Description | Identifies when a new privileged role is assigned to a user. Any account eligible for a role is now being given privileged access. If the assignment is unexpected or into a role that isn’t the responsibility of the account holder, investigate. Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor-1 |
Severity | High |
Tactics | Persistence |
Techniques | 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/Azure Active Directory/Analytic Rules/UserAssignedPrivilegedRole.yaml |
Version | 1.0.6 |
Arm template | 050b9b3d-53d0-4364-a3da-1b678b8211ec.json |
AuditLogs
| where Category =~ "RoleManagement"
| where AADOperationType in ("Assign", "AssignEligibleRole")
| where ActivityDisplayName has_any ("Add eligible member to role", "Add member to role")
| mv-apply TargetResource = TargetResources on
(
where TargetResource.type in~ ("User", "ServicePrincipal")
| extend Target = iff(TargetResource.type =~ "ServicePrincipal", tostring(TargetResource.displayName), tostring(TargetResource.userPrincipalName)),
props = TargetResource.modifiedProperties
)
| mv-apply Property = props on
(
where Property.displayName =~ "Role.DisplayName"
| extend RoleName = trim('"',tostring(Property.newValue))
)
| where RoleName contains "Admin"
| extend InitiatingApp = tostring(InitiatedBy.app.displayName)
| extend Initiator = iif(isnotempty(InitiatingApp), InitiatingApp, tostring(InitiatedBy.user.userPrincipalName))
// Uncomment below to not alert for PIM activations
//| where Initiator != "MS-PIM"
| summarize by bin(TimeGenerated, 1h), OperationName, RoleName, Target, Initiator, Result
| extend TargetName = tostring(split(Target,'@',0)[0]), TargetUPNSuffix = tostring(split(Target,'@',1)[0]), InitiatorName = tostring(split(Initiator,'@',0)[0]), InitiatorUPNSuffix = tostring(split(Initiator,'@',1)[0])
queryPeriod: 2h
entityMappings:
- fieldMappings:
- columnName: TargetName
identifier: Name
- columnName: TargetUPNSuffix
identifier: UPNSuffix
entityType: Account
- fieldMappings:
- columnName: InitiatorName
identifier: Name
- columnName: InitiatorUPNSuffix
identifier: UPNSuffix
entityType: Account
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure Active Directory/Analytic Rules/UserAssignedPrivilegedRole.yaml
tactics:
- Persistence
query: |
AuditLogs
| where Category =~ "RoleManagement"
| where AADOperationType in ("Assign", "AssignEligibleRole")
| where ActivityDisplayName has_any ("Add eligible member to role", "Add member to role")
| mv-apply TargetResource = TargetResources on
(
where TargetResource.type in~ ("User", "ServicePrincipal")
| extend Target = iff(TargetResource.type =~ "ServicePrincipal", tostring(TargetResource.displayName), tostring(TargetResource.userPrincipalName)),
props = TargetResource.modifiedProperties
)
| mv-apply Property = props on
(
where Property.displayName =~ "Role.DisplayName"
| extend RoleName = trim('"',tostring(Property.newValue))
)
| where RoleName contains "Admin"
| extend InitiatingApp = tostring(InitiatedBy.app.displayName)
| extend Initiator = iif(isnotempty(InitiatingApp), InitiatingApp, tostring(InitiatedBy.user.userPrincipalName))
// Uncomment below to not alert for PIM activations
//| where Initiator != "MS-PIM"
| summarize by bin(TimeGenerated, 1h), OperationName, RoleName, Target, Initiator, Result
| extend TargetName = tostring(split(Target,'@',0)[0]), TargetUPNSuffix = tostring(split(Target,'@',1)[0]), InitiatorName = tostring(split(Initiator,'@',0)[0]), InitiatorUPNSuffix = tostring(split(Initiator,'@',1)[0])
description: |
'Identifies when a new privileged role is assigned to a user. Any account eligible for a role is now being given privileged access. If the assignment is unexpected or into a role that isn't the responsibility of the account holder, investigate.
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor-1'
queryFrequency: 2h
id: 050b9b3d-53d0-4364-a3da-1b678b8211ec
status: Available
tags:
- AADSecOpsGuide
relevantTechniques:
- T1078.004
severity: High
version: 1.0.6
triggerThreshold: 0
kind: Scheduled
requiredDataConnectors:
- connectorId: AzureActiveDirectory
dataTypes:
- AuditLogs
name: User Assigned Privileged Role
{
"$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/050b9b3d-53d0-4364-a3da-1b678b8211ec')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/050b9b3d-53d0-4364-a3da-1b678b8211ec')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "User Assigned Privileged Role",
"description": "'Identifies when a new privileged role is assigned to a user. Any account eligible for a role is now being given privileged access. If the assignment is unexpected or into a role that isn't the responsibility of the account holder, investigate.\nRef : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor-1'\n",
"severity": "High",
"enabled": true,
"query": "AuditLogs\n| where Category =~ \"RoleManagement\"\n| where AADOperationType in (\"Assign\", \"AssignEligibleRole\")\n| where ActivityDisplayName has_any (\"Add eligible member to role\", \"Add member to role\")\n| mv-apply TargetResource = TargetResources on \n (\n where TargetResource.type in~ (\"User\", \"ServicePrincipal\")\n | extend Target = iff(TargetResource.type =~ \"ServicePrincipal\", tostring(TargetResource.displayName), tostring(TargetResource.userPrincipalName)),\n props = TargetResource.modifiedProperties\n )\n| mv-apply Property = props on \n (\n where Property.displayName =~ \"Role.DisplayName\"\n | extend RoleName = trim('\"',tostring(Property.newValue))\n )\n| where RoleName contains \"Admin\"\n| extend InitiatingApp = tostring(InitiatedBy.app.displayName)\n| extend Initiator = iif(isnotempty(InitiatingApp), InitiatingApp, tostring(InitiatedBy.user.userPrincipalName))\n// Uncomment below to not alert for PIM activations\n//| where Initiator != \"MS-PIM\"\n| summarize by bin(TimeGenerated, 1h), OperationName, RoleName, Target, Initiator, Result\n| extend TargetName = tostring(split(Target,'@',0)[0]), TargetUPNSuffix = tostring(split(Target,'@',1)[0]), InitiatorName = tostring(split(Initiator,'@',0)[0]), InitiatorUPNSuffix = tostring(split(Initiator,'@',1)[0])\n",
"queryFrequency": "PT2H",
"queryPeriod": "PT2H",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Persistence"
],
"techniques": [
"T1078.004"
],
"alertRuleTemplateName": "050b9b3d-53d0-4364-a3da-1b678b8211ec",
"customDetails": null,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"identifier": "Name",
"columnName": "TargetName"
},
{
"identifier": "UPNSuffix",
"columnName": "TargetUPNSuffix"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"identifier": "Name",
"columnName": "InitiatorName"
},
{
"identifier": "UPNSuffix",
"columnName": "InitiatorUPNSuffix"
}
]
}
],
"tags": [
"AADSecOpsGuide"
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure Active Directory/Analytic Rules/UserAssignedPrivilegedRole.yaml",
"templateVersion": "1.0.6",
"status": "Available"
}
}
]
}