HPE Aruba Networking AOS NDM Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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AOS must enforce a minimum 15-character password length.
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to d...Rule Medium Severity -
AOS must enforce password complexity by requiring that at least one uppercase character be used.
Use of a complex passwords helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisti...Rule Medium Severity -
AOS must enforce password complexity by requiring that at least one numeric character be used.
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resistin...Rule Medium Severity -
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.
Once issued by a DOD certificate authority (CA), PKI certificates are typically valid for three years or less within the DOD. However, there are many reasons a certificate may become invalid before...Rule High Severity -
AOS must use FIPS 140-2/140-3 approved algorithms for authentication to a cryptographic module.
Unapproved mechanisms that are used for authentication to the cryptographic module are not validated and therefore cannot be relied on to provide confidentiality or integrity, and DOD data may be c...Rule High Severity -
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.
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port th...Rule High Severity -
AOS must be configured to synchronize internal information system clocks using redundant authoritative time sources.
The loss of connectivity to a particular authoritative time source will result in the loss of time synchronization (free-run mode) and increasingly inaccurate time stamps on audit events and other ...Rule Medium Severity -
AOS must be configured to authenticate SNMP messages using a FIPS-validated Keyed-Hash Message Authentication Code (HMAC).
Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Bidirectional authentication provides stronger safeguards to validate the...Rule Medium Severity -
AOS must be configured to protect against known types of denial-of-service (DoS) attacks by employing organization-defined security safeguards.
DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. This requi...Rule Medium Severity -
AOS must require that when a password is changed, the characters are changed in at least eight of the positions within the password.
If the application allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at ...Rule Medium Severity -
AOS must be configured to use at least two authentication servers for the purpose of authenticating users prior to granting administrative access.
Centralized management of authentication settings increases the security of remote and nonlocal access methods. This control is particularly important protection against the insider threat. Wit...Rule High Severity -
AOS must be configured to conduct backups of system-level information contained in the information system when changes occur.
System-level information includes default and customized settings and security attributes, including Access Control Lists (ACLs) that relate to the network device configuration, as well as software...Rule Medium Severity -
AOS must authenticate Network Time Protocol (NTP) sources using authentication that is cryptographically based.
If NTP is not authenticated, an attacker can introduce a rogue NTP server. This rogue server can then be used to send incorrect time information to network devices, which will make log timestamps i...Rule Medium Severity -
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).
The aggregation of log data kept on a syslog server can be used to detect attacks and trigger an alert to the appropriate security personnel. The stored log data can be used to detect weaknesses in...Rule High Severity
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