The AAA Service must be configured to automatically remove temporary user accounts after 72 hours.

From Authentication Authorization and Accounting Service Security Requirements Guide

Associated with: CCI-000016

SRG-APP-000024-AAA-000004_rule The AAA Service must be configured to automatically remove temporary user accounts after 72 hours.

Vulnerability discussion

When temporary user accounts remain active after no longer needed or for an excessive period, these accounts may be used to gain unauthorized access. To mitigate this risk, automated termination of all temporary user accounts must be set upon account creation. Disabling a temporary account provides a higher risk alternative; disabling allows an insider adversary to enable the privileged account and make it permanent.Temporary accounts, when used, mandate that the AAA Service must be configured to automatically terminate these types of accounts after 72 hours. When the AAA Service does not perform account management, then the connected Active Directory must provide this setting.

Check content

If the AAA Service relies on directory services for user account management this is not applicable and the connected directory services must perform this function. Verify the AAA Service is configured to automatically remove temporary user accounts after 72 hours. If the AAA Service configuration does not automatically remove temporary user accounts after 72 hours, this is a finding.

Fix text

Configure the AAA Service to automatically remove temporary user accounts after 72 hours.

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