Pathlock TDnR - User Authorization Buffer Manipulation

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Id	2a3b4c5d-6e7f-4a0b-8c1d-2e3f4a5b6c72
Rulename	Pathlock TDnR - User Authorization Buffer Manipulation
Description	Detects unauthorized manipulations of the SAP user authorization buffer (USRBF2), forwarded by Pathlock Threat Detection and Response. Direct manipulation of the authorization buffer bypasses the normal role/profile assignment process and can grant arbitrary privileges to any user without leaving a trace in standard authorization management logs.
Severity	High
Tactics	PrivilegeEscalation DefenseEvasion
Techniques	T1548 T1562
Required data connectors	Pathlock_TDnR
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Pathlock_TDnR/Analytic Rules/Pathlock_TDnR_USER_AUTH_BUFFER.yaml
Version	1.0.0
Arm template	2a3b4c5d-6e7f-4a0b-8c1d-2e3f4a5b6c72.json

KQL

Pathlock_TDnR_CL
| where DataSource == "USER_AUTH_BUFFER"
| project TimeGenerated, Sysid, DataSource, Eventid, Instance, Hostname, Bname,
          Tcode, Report, Area, Subid, SrcIp, DestIp, AffectedUser, LogLine,
          MsgType, MsgId, MsgNo, MessageV1, MessageV2, MessageV3, MessageV4, CentralTs

YAML

version: 1.0.0
queryPeriod: 1h
suppressionDuration: 5h
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: Name
    columnName: Bname
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: Hostname
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: SrcIp
eventGroupingSettings:
  aggregationKind: SingleAlert
tactics:
- PrivilegeEscalation
- DefenseEvasion
status: Available
relevantTechniques:
- T1548
- T1562
triggerOperator: gt
suppressionEnabled: false
requiredDataConnectors:
- connectorId: Pathlock_TDnR
  dataTypes:
  - Pathlock_TDnR_CL
queryFrequency: 1h
severity: High
kind: Scheduled
incidentConfiguration:
  groupingConfiguration:
    groupByEntities: []
    enabled: true
    groupByAlertDetails: []
    groupByCustomDetails: []
    reopenClosedIncident: false
    matchingMethod: AnyAlert
    lookbackDuration: 5h
  createIncident: true
triggerThreshold: 0
query: |
  Pathlock_TDnR_CL
  | where DataSource == "USER_AUTH_BUFFER"
  | project TimeGenerated, Sysid, DataSource, Eventid, Instance, Hostname, Bname,
            Tcode, Report, Area, Subid, SrcIp, DestIp, AffectedUser, LogLine,
            MsgType, MsgId, MsgNo, MessageV1, MessageV2, MessageV3, MessageV4, CentralTs  
description: Detects unauthorized manipulations of the SAP user authorization buffer (USRBF2), forwarded by Pathlock Threat Detection and Response. Direct manipulation of the authorization buffer bypasses the normal role/profile assignment process and can grant arbitrary privileges to any user without leaving a trace in standard authorization management logs.
id: 2a3b4c5d-6e7f-4a0b-8c1d-2e3f4a5b6c72
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Pathlock_TDnR/Analytic Rules/Pathlock_TDnR_USER_AUTH_BUFFER.yaml
name: Pathlock TDnR - User Authorization Buffer Manipulation

ARM