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Azure AD Only Single Factor Authentication Required

Detect when users are authenticating without MFA being required.

MITRE ATT&CK

privilege-escalationpersistencedefense-evasioninitial-accesscredential-access

Detection Query

selection:
  Status: Success
  AuthenticationRequirement: singleFactorAuthentication
condition: selection

Author

MikeDuddington, '@dudders1'

Created

2022-07-27

Data Sources

azuresigninlogs

Platforms

azure

References

https://learn.microsoft.com/en-gb/entra/architecture/security-operations-user-accounts

Tags

attack.privilege-escalationattack.persistenceattack.defense-evasionattack.initial-accessattack.credential-accessattack.t1078.004attack.t1556.006

Raw Content

title: Azure AD Only Single Factor Authentication Required
id: 28eea407-28d7-4e42-b0be-575d5ba60b2c
status: test
description: Detect when users are authenticating without MFA being required.
references:
    - https://learn.microsoft.com/en-gb/entra/architecture/security-operations-user-accounts
author: MikeDuddington, '@dudders1'
date: 2022-07-27
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.defense-evasion
    - attack.initial-access
    - attack.credential-access
    - attack.t1078.004
    - attack.t1556.006
logsource:
    product: azure
    service: signinlogs
detection:
    selection:
        Status: 'Success'
        AuthenticationRequirement: 'singleFactorAuthentication'
    condition: selection
falsepositives:
    - If this was approved by System Administrator.
level: low