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GCP IAM custom role created or modified

gcp

Classification:

attack

Tactic:

Technique:

Goal

Detect when a custom role is created or modified.

Strategy

Monitor GCP IAM activity audit logs to determine when any of the following methods are invoked:

  • google.iam.admin.v1.CreateRole
  • google.iam.admin.v1.UpdateRole

Triage and response

  1. Review the log and role and ensure the permissions are scoped properly.
  2. Review the users associated with the role and ensure they should have the permissions attached to the role.