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AWS Identity Center Identity Provider Change

Detects a change in the AWS Identity Center (FKA AWS SSO) identity provider. A change in identity provider allows an attacker to establish persistent access or escalate privileges via user impersonation.

MITRE ATT&CK

T1556

persistencecredential-accessdefense-evasion

Detection Query

selection:
  eventSource:
    - sso-directory.amazonaws.com
    - sso.amazonaws.com
  eventName:
    - AssociateDirectory
    - DisableExternalIdPConfigurationForDirectory
    - DisassociateDirectory
    - EnableExternalIdPConfigurationForDirectory
condition: selection

Author

Michael McIntyre @wtfender

Created

2023-09-27

Data Sources

awscloudtrail

Platforms

aws

References

Tags

attack.persistenceattack.credential-accessattack.defense-evasionattack.t1556

Raw Content

title: AWS Identity Center Identity Provider Change
id: d3adb3ef-b7e7-4003-9092-1924c797db35
status: test
description: |
    Detects a change in the AWS Identity Center (FKA AWS SSO) identity provider.
    A change in identity provider allows an attacker to establish persistent access or escalate privileges via user impersonation.
references:
    - https://docs.aws.amazon.com/singlesignon/latest/userguide/app-enablement.html
    - https://docs.aws.amazon.com/singlesignon/latest/userguide/sso-info-in-cloudtrail.html
    - https://docs.aws.amazon.com/service-authorization/latest/reference/list_awsiamidentitycentersuccessortoawssinglesign-on.html
author: Michael McIntyre @wtfender
date: 2023-09-27
tags:
    - attack.persistence
    - attack.credential-access
    - attack.defense-evasion
    - attack.t1556
logsource:
    product: aws
    service: cloudtrail
detection:
    selection:
        eventSource:
            - 'sso-directory.amazonaws.com'
            - 'sso.amazonaws.com'
        eventName:
            - 'AssociateDirectory'
            - 'DisableExternalIdPConfigurationForDirectory'
            - 'DisassociateDirectory'
            - 'EnableExternalIdPConfigurationForDirectory'
    condition: selection
falsepositives:
    - Authorized changes to the AWS account's identity provider
level: high