1Password - Non-privileged vault user permission change

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Id	327e0579-7c03-4ec7-acf5-a29dcc4a12b6
Rulename	1Password - Non-privileged vault user permission change
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/
Severity	Medium
Tactics	Persistence
Techniques	T1098
Required data connectors	1Password
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics Rules/1Password - Non-privileged vault user permission change.yaml
Version	1.0.0
Arm template	327e0579-7c03-4ec7-acf5-a29dcc4a12b6.json

KQL

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

YAML

name: 1Password - Non-privileged vault user permission change
relevantTechniques:
- T1098
incidentConfiguration:
  groupingConfiguration:
    matchingMethod: AllEntities
    lookbackDuration: 1h
    enabled: true
    reopenClosedIncident: false
  createIncident: true
eventGroupingSettings:
  aggregationKind: SingleAlert
requiredDataConnectors:
- dataTypes:
  - OnePasswordEventLogs_CL
  connectorId: 1Password
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics Rules/1Password - Non-privileged vault user permission change.yaml
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  
tactics:
- Persistence
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/  
entityMappings:
- fieldMappings:
  - columnName: ActorUsername
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: TargetUsername
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: SrcIpAddr
    identifier: Address
  entityType: IP
suppressionEnabled: false
queryFrequency: 5m
triggerOperator: gt
suppressionDuration: 5h
version: 1.0.0
queryPeriod: 5m
kind: Scheduled
severity: Medium
triggerThreshold: 0
id: 327e0579-7c03-4ec7-acf5-a29dcc4a12b6

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/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 Rules/1Password - Non-privileged vault user permission change.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"
    }
  ]
}