1Password - Potential insider privilege escalation via vault

OnePasswordEventLogs_CL
| where log_source == "auditevents"
| where action has_any("grant", "update")
| where object_type == "uva"
| where tostring(actor_details.email) == tostring(aux_details.email)
| extend
    TargetUsername = aux_details.email
    , ActorUsername = actor_details.email
    , SrcIpAddr = session.ip

entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: ActorUsername
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: TargetUsername
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: SrcIpAddr
name: 1Password - Potential insider privilege escalation via vault
queryFrequency: 5m
triggerOperator: gt
suppressionEnabled: false
subTechniques:
- T1078.004
suppressionDuration: 5h
queryPeriod: 5m
requiredDataConnectors:
- connectorId: 1Password
  dataTypes:
  - OnePasswordEventLogs_CL
tactics:
- PrivilegeEscalation
query: |-
  OnePasswordEventLogs_CL
  | where log_source == "auditevents"
  | where action has_any("grant", "update")
  | where object_type == "uva"
  | where tostring(actor_details.email) == tostring(aux_details.email)
  | extend
      TargetUsername = aux_details.email
      , ActorUsername = actor_details.email
      , SrcIpAddr = session.ip
description: |-
  This will alert when an actor grants, or updates their own permissions via a vault. 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
incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: 1h
    enabled: true
    reopenClosedIncident: false
    matchingMethod: AllEntities
  createIncident: true
kind: Scheduled
eventGroupingSettings:
  aggregationKind: SingleAlert
triggerThreshold: 0
id: a00ffbd8-1d1c-47a3-b0a6-7d70bd8017ed
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics%20Rules/1Password%20-%20Potential%20insider%20privilege%20escalation%20via%20vault.yaml
version: 1.0.0
relevantTechniques:
- T1078

{
  "$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/a00ffbd8-1d1c-47a3-b0a6-7d70bd8017ed')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/a00ffbd8-1d1c-47a3-b0a6-7d70bd8017ed')]",
      "properties": {
        "alertRuleTemplateName": "a00ffbd8-1d1c-47a3-b0a6-7d70bd8017ed",
        "customDetails": null,
        "description": "This will alert when an actor grants, or updates their own permissions via a vault. 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 - Potential insider privilege escalation via vault",
        "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-%20Potential%20insider%20privilege%20escalation%20via%20vault.yaml",
        "query": "OnePasswordEventLogs_CL\n| where log_source == \"auditevents\"\n| where action has_any(\"grant\", \"update\")\n| where object_type == \"uva\"\n| where tostring(actor_details.email) == tostring(aux_details.email)\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": [
          "PrivilegeEscalation"
        ],
        "techniques": [
          "T1078"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}