The AAA Service must be configured to require multifactor authentication using Personal Identity Verification (PIV) credentials for authenticating privileged user accounts.

From Authentication Authorization and Accounting Service Security Requirements Guide

Part of SRG-APP-000149-AAA-000040

Associated with: CCI-000765

SRG-APP-000149-AAA-000040_rule The AAA Service must be configured to require multifactor authentication using Personal Identity Verification (PIV) credentials for authenticating privileged user accounts.

Vulnerability discussion

Without the use of multifactor authentication, the ease of access to privileged functions is greatly increased. Multifactor authentication requires using two or more factors to achieve authentication. Factors include: (i) something a user knows (e.g., password/PIN); (ii) something a user has (e.g., cryptographic identification device, token); or (iii) something a user is (e.g., biometric). A privileged account is defined as an information system account with authorizations of a privileged user. Network access is defined as access to an information system by a user (or a process acting on behalf of a user) communicating through a network (e.g., local area network, wide area network, or the Internet).

Check content

Verify the AAA Service is configured to require multifactor authentication using PIV credentials for authenticating privileged user accounts. Although the Common Access Card (CAC) is a PIV credential, it should not be used for privileged accounts, but rather only for non-privileged accounts. If the AAA Service is not configured to require multifactor authentication using PIV credentials for authenticating privileged user accounts, this is a finding.

Fix text

Configure the AAA Service to require multifactor authentication using PIV credentials for authenticating privileged user accounts. Although the CAC is a PIV credential, it should not be used for privileged accounts, but rather only for non-privileged accounts.

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