1Password - Non-privileged vault user permission change

let watchlist =
    _GetWatchlist("PV1PW")
    | project SearchKey
;
// Insert the vault UUIDs below when using the dynamic vaults list within the analytics rule itself
let vaults = dynamic([""]);
OnePasswordEventLogs_CL
| where log_source == "auditevents"
| where action has_any("grant", "revoke", "update")
| where object_type == "uva"
| where tostring(actor_details.email) != tostring(aux_details.email)
// Enable the line below when using the "Privileged Vaults - 1PW" watchlist
| where object_uuid !in (watchlist)
// Enable the line below when using the dynamic vaults list within the analytics rule itself
// | where object_uuid !in (vaults)
| extend
    TargetUsername = aux_details.email
    , ActorUsername = actor_details.email
    , SrcIpAddr = session.ip

incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: 1h
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: true
  createIncident: true
name: 1Password - Non-privileged vault user permission change
suppressionDuration: 5h
suppressionEnabled: false
triggerOperator: gt
kind: Scheduled
queryFrequency: 5m
description: |-
  This will alert when user permissions have changed within a non-privileged vault which have been implemented by an actor that was not the target user account. Once this analytics rule is triggered it will group all related future alerts for upto an hour when all related entities are the same.

  Ref: https://1password.com/
  Ref: https://github.com/securehats/
id: 327e0579-7c03-4ec7-acf5-a29dcc4a12b6
triggerThreshold: 0
queryPeriod: 5m
query: |-
  let watchlist =
      _GetWatchlist("PV1PW")
      | project SearchKey
  ;
  // Insert the vault UUIDs below when using the dynamic vaults list within the analytics rule itself
  let vaults = dynamic([""]);
  OnePasswordEventLogs_CL
  | where log_source == "auditevents"
  | where action has_any("grant", "revoke", "update")
  | where object_type == "uva"
  | where tostring(actor_details.email) != tostring(aux_details.email)
  // Enable the line below when using the "Privileged Vaults - 1PW" watchlist
  | where object_uuid !in (watchlist)
  // Enable the line below when using the dynamic vaults list within the analytics rule itself
  // | where object_uuid !in (vaults)
  | extend
      TargetUsername = aux_details.email
      , ActorUsername = actor_details.email
      , SrcIpAddr = session.ip
version: 1.0.0
requiredDataConnectors:
- connectorId: 1Password
  dataTypes:
  - OnePasswordEventLogs_CL
eventGroupingSettings:
  aggregationKind: SingleAlert
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics%20Rules/1Password%20-%20Non-privileged%20vault%20user%20permission%20change.yaml
relevantTechniques:
- T1098
tactics:
- Persistence
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: ActorUsername
  entityType: Account
- fieldMappings:
  - identifier: FullName
    columnName: TargetUsername
  entityType: Account
- fieldMappings:
  - identifier: Address
    columnName: SrcIpAddr
  entityType: IP

{
  "$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/327e0579-7c03-4ec7-acf5-a29dcc4a12b6')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/327e0579-7c03-4ec7-acf5-a29dcc4a12b6')]",
      "properties": {
        "alertRuleTemplateName": "327e0579-7c03-4ec7-acf5-a29dcc4a12b6",
        "customDetails": null,
        "description": "This will alert when user permissions have changed within a non-privileged vault which have been implemented by an actor that was not the target user account. Once this analytics rule is triggered it will group all related future alerts for upto an hour when all related entities are the same.\n\nRef: https://1password.com/\nRef: https://github.com/securehats/",
        "displayName": "1Password - Non-privileged vault user permission change",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "ActorUsername",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "TargetUsername",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "SrcIpAddr",
                "identifier": "Address"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "lookbackDuration": "PT1H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics%20Rules/1Password%20-%20Non-privileged%20vault%20user%20permission%20change.yaml",
        "query": "let watchlist =\n    _GetWatchlist(\"PV1PW\")\n    | project SearchKey\n;\n// Insert the vault UUIDs below when using the dynamic vaults list within the analytics rule itself\nlet vaults = dynamic([\"\"]);\nOnePasswordEventLogs_CL\n| where log_source == \"auditevents\"\n| where action has_any(\"grant\", \"revoke\", \"update\")\n| where object_type == \"uva\"\n| where tostring(actor_details.email) != tostring(aux_details.email)\n// Enable the line below when using the \"Privileged Vaults - 1PW\" watchlist\n| where object_uuid !in (watchlist)\n// Enable the line below when using the dynamic vaults list within the analytics rule itself\n// | where object_uuid !in (vaults)\n| extend\n    TargetUsername = aux_details.email\n    , ActorUsername = actor_details.email\n    , SrcIpAddr = session.ip",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "Medium",
        "subTechniques": [],
        "suppressionDuration": "PT5H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence"
        ],
        "techniques": [
          "T1098"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}