HYCU for Nutanix Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The HYCU 4.1 Application must enforce the assigned privilege level for each administrator and authorizations for access to all commands relative to the privilege level in accordance with applicable policy for the device.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems must be properly configured to incorporate ...Rule High Severity -
The HYCU VM console must be configured to enforce the limit of three consecutive invalid logon attempts, after which time it must block any logon attempt for 15 minutes.
By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced.Rule Medium Severity -
The HYCU VM console 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.
The banner must be acknowledged by the administrator prior to the device allowing the administrator access to the network device. This provides assurance that the administrator has seen the message...Rule Medium Severity -
The HYCU VM/server must be configured to disable SSH.
It is detrimental for applications to provide functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain un...Rule Medium Severity -
The HYCU server must generate audit records for privileged activities or other system-level access.
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an in...Rule Medium Severity -
The HYCU server must produce audit records containing information to establish when events occurred, where events occurred, the source of the event, the outcome of the event, and identity of any individual or process associated with the event.
It is essential for security personnel to know what is being done, what was attempted, where it was done, when it was done, and by whom it was done in order to compile an accurate risk assessment. ...Rule Medium Severity -
The HYCU server must allocate audit record storage capacity in accordance with organization-defined audit record storage requirements.
To ensure network devices have a sufficient storage capacity in which to write the audit logs, they must be able to allocate audit record storage capacity. The task of allocating audit record stora...Rule Medium Severity -
The HYCU server must protect audit information from unauthorized deletion.
Audit information includes all information (e.g., audit records, audit settings, and audit reports) needed to successfully audit information system activity. If audit data were to become compromis...Rule Medium Severity -
The HYCU server must protect audit tools from unauthorized access, modification, and deletion.
Protecting audit data also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on au...Rule Medium Severity -
The HYCU server must authenticate Network Time Protocol sources using authentication that is cryptographically based.
If Network Time Protocol 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 mak...Rule Medium Severity
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