The AAA Service used for 802.1x must be configured to authenticate network endpoint devices (supplicants) before the authenticator establishes any connection.
From Authentication Authorization and Accounting Service Security Requirements Guide
Part of SRG-APP-000394-AAA-000043
Associated with:
CCI-001958
SRG-APP-000394-AAA-000043_rule
The AAA Service used for 802.1x must be configured to authenticate network endpoint devices (supplicants) before the authenticator establishes any connection.
Vulnerability discussion
Without authenticating 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 authentication claims may be made by services separate from the services acting on those decisions. In such situations, it is necessary to provide authentication decisions (as opposed to the actual authenticators) 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. Device authentication is a solution enabling an organization to manage devices. It is an additional layer of authentication ensuring only specific pre-authorized devices can access the system.
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 authenticate supplicants before the authenticator establishes any connection.
If the AAA Service is not configured to authenticate supplicants before the authenticator establishes any connection, this is a finding.
Fix text
Configure the AAA Service to authenticate supplicants before the authenticator establishes any connection.
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