1Password - Potential insider privilege escalation via group
Id | 398a1cf1-f56f-4700-912c-9bf4c8409ebc |
Rulename | 1Password - Potential insider privilege escalation via group |
Description | This will alert when an actor grants, or updates their own permissions via a group. 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 group.yaml |
Version | 1.0.0 |
Arm template | 398a1cf1-f56f-4700-912c-9bf4c8409ebc.json |
OnePasswordEventLogs_CL
| where log_source == "auditevents"
| where action has_any("join", "role")
| where object_type == "gm"
| where tostring(actor_details.email) == tostring(aux_details.email)
| extend
TargetUsername = aux_details.email
, ActorUsername = actor_details.email
, SrcIpAddr = session.ip
, GroupRole = case(
aux_info == "R", "Group member"
, aux_info == "A", "Group manager"
, aux_info
)
version: 1.0.0
queryPeriod: 5m
id: 398a1cf1-f56f-4700-912c-9bf4c8409ebc
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics Rules/1Password - Potential insider privilege escalation via group.yaml
suppressionEnabled: false
triggerThreshold: 0
kind: Scheduled
severity: Medium
description: |-
This will alert when an actor grants, or updates their own permissions via a group. 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/
triggerOperator: gt
tactics:
- PrivilegeEscalation
queryFrequency: 5m
suppressionDuration: 5h
query: |-
OnePasswordEventLogs_CL
| where log_source == "auditevents"
| where action has_any("join", "role")
| where object_type == "gm"
| where tostring(actor_details.email) == tostring(aux_details.email)
| extend
TargetUsername = aux_details.email
, ActorUsername = actor_details.email
, SrcIpAddr = session.ip
, GroupRole = case(
aux_info == "R", "Group member"
, aux_info == "A", "Group manager"
, aux_info
)
requiredDataConnectors:
- connectorId: 1Password
dataTypes:
- OnePasswordEventLogs_CL
incidentConfiguration:
createIncident: true
groupingConfiguration:
enabled: true
reopenClosedIncident: false
matchingMethod: AllEntities
lookbackDuration: 1h
relevantTechniques:
- T1078
eventGroupingSettings:
aggregationKind: SingleAlert
name: 1Password - Potential insider privilege escalation via group
subTechniques:
- T1078.004
entityMappings:
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: ActorUsername
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: TargetUsername
- entityType: IP
fieldMappings:
- identifier: Address
columnName: SrcIpAddr
{
"$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/398a1cf1-f56f-4700-912c-9bf4c8409ebc')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/398a1cf1-f56f-4700-912c-9bf4c8409ebc')]",
"properties": {
"alertRuleTemplateName": "398a1cf1-f56f-4700-912c-9bf4c8409ebc",
"customDetails": null,
"description": "This will alert when an actor grants, or updates their own permissions via a group. 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 group",
"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 - Potential insider privilege escalation via group.yaml",
"query": "OnePasswordEventLogs_CL\n| where log_source == \"auditevents\"\n| where action has_any(\"join\", \"role\")\n| where object_type == \"gm\"\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\n , GroupRole = case(\n aux_info == \"R\", \"Group member\"\n , aux_info == \"A\", \"Group manager\"\n , aux_info\n )",
"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"
}
]
}