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MediumMicrosoft Sentinel analyticsMicrosoft Security Research

Service Principal Assigned App Role With Sensitive Access

Detects a Service Principal being assigned an app role that has sensitive access such as Mail.Read. A threat actor who compromises a Service Principal may assign it an app role to allow it to access sensitive data,…

Description

Detects a Service Principal being assigned an app role that has sensitive access such as Mail.Read. A threat actor who compromises a Service Principal may assign it an app role to allow it to access sensitive data, or to perform other actions. Ensure that any assignment to a Service Principal is valid and appropriate. Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-applications#application-granted-highly-privileged-permissions

Detection logic

Detection requirements

Platform
IaaSIdentity ProviderOffice SuiteSaaS

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
azureactivedirectory
Log source service
auditlogs

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