Detection rules › Sigma

Delegated Permissions Granted For All Users

Status
test
Severity
high
Log source
product azure, service auditlogs
Author
Bailey Bercik '@baileybercik', Mark Morowczynski '@markmorow'
Source
github.com/SigmaHQ/sigma

Detects when highly privileged delegated permissions are granted on behalf of all users

Known false positives

  • When the permission is legitimately needed for the app

MITRE ATT&CK coverage

TacticTechniques
Credential Access

Telemetry coverage

PlatformRecord / event type
AzureAdd delegated permission grant

Rules detecting the same action

These rules filter on the same operation.

Rule body

title: Delegated Permissions Granted For All Users
id: a6355fbe-f36f-45d8-8efc-ab42465cbc52
status: test
description: Detects when highly privileged delegated permissions are granted on behalf of all users
references:
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-applications#application-granted-highly-privileged-permissions
author: Bailey Bercik '@baileybercik', Mark Morowczynski '@markmorow'
date: 2022-07-28
tags:
    - attack.credential-access
    - attack.t1528
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        properties.message: Add delegated permission grant
    condition: selection
falsepositives:
    - When the permission is legitimately needed for the app
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    properties.message: Add delegated permission grant

Indicators

These rows show field, operator, and value matches.