The AAA Service used for 802.1x must be configured to uniquely identify network endpoints (supplicants) before the authenticator establishes any connection.

From Authentication Authorization and Accounting Service Security Requirements Guide

Associated with: CCI-000778

SRG-APP-000158-AAA-000042_rule The AAA Service used for 802.1x must be configured to uniquely identify network endpoints (supplicants) before the authenticator establishes any connection.

Vulnerability discussion

Without identifying devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity.For distributed architectures (e.g., service-oriented architectures), the decisions regarding the validation of identification claims may be made by services separate from the services acting on those decisions. In such situations, it is necessary to provide the identification decisions (as opposed to the actual identifiers) to the services that need to act on those decisions.This requirement applies to applications that connect either locally, remotely, or through a network to an endpoint device (including but not limited to: workstations, printers, servers [outside a datacenter], VoIP Phones, VTC CODECs). Gateways and SOA applications are examples of where this requirement would apply.

Check content

If the AAA Service is not used for 802.1x endpoint identification and authentication, this is not applicable. Verify the AAA Service is configured to uniquely identify supplicants before the authenticator establishes any connection. If the AAA Service is not configured to uniquely identify supplicants before the authenticator establishes any connection, this is a finding.

Fix text

Configure the AAA Service used for 802.1x identification and authentication to uniquely identify supplicants before the authenticator establishes any connection.

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