1Password - Potential insider privilege escalation via vault

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Id	a00ffbd8-1d1c-47a3-b0a6-7d70bd8017ed
Rulename	1Password - Potential insider privilege escalation via vault
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
Tactics	PrivilegeEscalation
Techniques	T1078
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 - Potential insider privilege escalation via vault.yaml
Version	1.0.0
Arm template	a00ffbd8-1d1c-47a3-b0a6-7d70bd8017ed.json

KQL

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

YAML

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/  
queryPeriod: 5m
severity: Medium
triggerThreshold: 0
queryFrequency: 5m
tactics:
- PrivilegeEscalation
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics Rules/1Password - Potential insider privilege escalation via vault.yaml
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  
suppressionDuration: 5h
triggerOperator: gt
name: 1Password - Potential insider privilege escalation via vault
requiredDataConnectors:
- connectorId: 1Password
  dataTypes:
  - OnePasswordEventLogs_CL
relevantTechniques:
- T1078
suppressionEnabled: false
subTechniques:
- T1078.004
eventGroupingSettings:
  aggregationKind: SingleAlert
kind: Scheduled
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    lookbackDuration: 1h
    reopenClosedIncident: false
    enabled: true
    matchingMethod: AllEntities
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: ActorUsername
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: TargetUsername
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: SrcIpAddr
id: a00ffbd8-1d1c-47a3-b0a6-7d70bd8017ed

ARM