Check: SRG-APP-000024-AAA-000050
Authentication, Authorization, and Accounting Services (AAA) SRG:
SRG-APP-000024-AAA-000050
(in versions v1 r2 through v1 r1)
Title
AAA Services must be configured to automatically remove authorizations for temporary user accounts after 72 hours. (Cat II impact)
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 AAA Services must be configured to automatically terminate these types of accounts after 72 hours. When AAA Services do not perform account management, the connected Active Directory must provide this setting.
Check Content
If AAA Services do not provide authorizations based on external directory services, this is not applicable. Verify AAA Services are configured to automatically remove authorizations for temporary user accounts after 72 hours. If the AAA Services configuration does not automatically remove authorizations for temporary user accounts after 72 hours, this is a finding.
Fix Text
Configure AAA Services to automatically remove authorizations for temporary user accounts after 72 hours.
Additional Identifiers
Rule ID: SV-95531r1_rule
Vulnerability ID: V-80821
Group Title: SRG-APP-000024-AAA-000050
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000016 |
The information system automatically removes or disables temporary accounts after an organization-defined time period for each type of account. |
Controls
Number | Title |
---|---|
AC-2 (2) |
Removal Of Temporary / Emergency Accounts |