| ARBA-ND-000200 - AOS must limit the number of concurrent sessions to a maximum of three for each administrator account and/or administrator account type. | ACCESS CONTROL |
| ARBA-ND-000208 - AOS must automatically audit account creation. | ACCESS CONTROL, AUDIT AND ACCOUNTABILITY, CONFIGURATION MANAGEMENT |
| ARBA-ND-000212 - AOS must be configured to assign appropriate user roles or access levels to authenticated users. | ACCESS CONTROL |
| ARBA-ND-000213 - AOS must enforce approved authorizations for controlling the flow of management information within the network device based on information flow control policies. | ACCESS CONTROL, AUDIT AND ACCOUNTABILITY |
| ARBA-ND-000214 - AOS must be configured to enforce the limit of three consecutive invalid login attempts, after which time it must block any login attempt for 15 minutes. | ACCESS CONTROL |
| ARBA-ND-000215 - AOS must display the Standard Mandatory DOD Notice and Consent Banner before granting access to the device. | ACCESS CONTROL |
| ARBA-ND-000216 - AOS must retain the Standard Mandatory DOD Notice and Consent Banner on the screen until the administrator acknowledges the usage conditions and takes explicit actions to log on for further access. | ACCESS CONTROL |
| ARBA-ND-000245 - AOS must be configured to prohibit the use of all unnecessary and/or nonsecure functions, ports, protocols, and/or services. | CONFIGURATION MANAGEMENT |
| ARBA-ND-000247 - AOS must be configured to use DOD public key infrastructure (PKI) as multifactor authentication (MFA) for interactive logins. | AUDIT AND ACCOUNTABILITY, IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000250 - AOS must implement replay-resistant authentication mechanisms for network access to privileged accounts. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000252 - AOS must enforce a minimum 15-character password length. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000254 - AOS must enforce password complexity by requiring that at least one uppercase character be used. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000255 - AOS must enforce password complexity by requiring that at least one lowercase character be used. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000256 - AOS must enforce password complexity by requiring that at least one numeric character be used. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000257 - AOS must enforce password complexity by requiring that at least one special character be used. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000259 - AOS must transmit only encrypted representations of passwords. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000262 - AOS must be configured to use DOD-approved Online Certificate Status Protocol (OCSP) responders or Certificate Revocation Lists (CRLs) to validate certificates used for public key infrastructure (PKI)-based authentication. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000265 - AOS must use FIPS 140-2/140-3 approved algorithms for authentication to a cryptographic module. | IDENTIFICATION AND AUTHENTICATION, MAINTENANCE, SYSTEM AND COMMUNICATIONS PROTECTION |
| ARBA-ND-000267 - AOS must terminate all network connections associated with a device management session at the end of the session, or the session must be terminated after five minutes of inactivity except to fulfill documented and validated mission requirements. | MAINTENANCE, SYSTEM AND COMMUNICATIONS PROTECTION |
| ARBA-ND-000287 - AOS must enforce role-based access control policies over defined subjects and objects. | ACCESS CONTROL, CONFIGURATION MANAGEMENT |
| ARBA-ND-000289 - AOS must audit the execution of privileged functions. | ACCESS CONTROL, AUDIT AND ACCOUNTABILITY |
| ARBA-ND-000295 - AOS must generate an immediate real-time alert of all audit failure events requiring real-time alerts. | AUDIT AND ACCOUNTABILITY |
| ARBA-ND-000298 - AOS must be configured to synchronize internal information system clocks using redundant authoritative time sources. | AUDIT AND ACCOUNTABILITY, CONFIGURATION MANAGEMENT |
| ARBA-ND-000299 - AOS must record time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). | AUDIT AND ACCOUNTABILITY |
| ARBA-ND-000310 - AOS must be configured to authenticate SNMP messages using a FIPS-validated Keyed-Hash Message Authentication Code (HMAC). | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000313 - AOS must prohibit the use of cached authenticators after an organization-defined time period. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000315 - AOS must be configured to protect against known types of denial-of-service (DoS) attacks by employing organization-defined security safeguards. | SYSTEM AND COMMUNICATIONS PROTECTION |
| ARBA-ND-000325 - AOS must off-load audit records onto a different system or media than the system being audited. | AUDIT AND ACCOUNTABILITY |
| ARBA-ND-000329 - AOS must require that when a password is changed, the characters are changed in at least eight of the positions within the password. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000334 - AOS must generate log records for a locally developed list of auditable events. | AUDIT AND ACCOUNTABILITY, CONFIGURATION MANAGEMENT |
| ARBA-ND-000336 - AOS must be configured to use at least two authentication servers for the purpose of authenticating users prior to granting administrative access. | CONFIGURATION MANAGEMENT |
| ARBA-ND-000340 - AOS must be configured to conduct backups of system-level information contained in the information system when changes occur. | CONFIGURATION MANAGEMENT, CONTINGENCY PLANNING |
| ARBA-ND-000341 - AOS must support organizational requirements to conduct backups of information system documentation, including security-related documentation, when changes occur or weekly, whichever is sooner. | CONFIGURATION MANAGEMENT, CONTINGENCY PLANNING |
| ARBA-ND-000344 - AOS must obtain its public key certificates from an appropriate certificate policy through an approved service provider. | CONFIGURATION MANAGEMENT, SYSTEM AND COMMUNICATIONS PROTECTION |
| ARBA-ND-000346 - AOS must be configured with only one local account to be used as the account of last resort in the event the authentication server is unavailable. | ACCESS CONTROL |
| ARBA-ND-000347 - AOS must authenticate Network Time Protocol (NTP) sources using authentication that is cryptographically based. | IDENTIFICATION AND AUTHENTICATION |
| ARBA-ND-000350 - AOS must be configured to send log data to at least two central log servers for the purpose of forwarding alerts to the administrators and the information system security officer (ISSO). | AUDIT AND ACCOUNTABILITY, SYSTEM AND COMMUNICATIONS PROTECTION |
