How Adversaries Can Persist with AWS User Federation
In recent incident response investigations, CrowdStrike Services has observed adversaries use the sts:GetFederationToken API call to create federated sessions from IAM users. In this scenario, the federated session inherits permissions from the base IAM user. Perhaps surprising to many incident responders, the privileges and access of the federated session are not revoked when the base IAM user’s credentials are deactivated.