Arista MLS DCS-7000 Series NDM Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000515-NDM-000325
Group -
The Arista Multilayer Switch must, at a minimum, off-load audit records for interconnected systems in real time.
Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity.Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
SRG-APP-000516-NDM-000336
Group -
The Arista Multilayer Switch must employ AAA service to centrally manage authentication settings.
The use of authentication servers or other centralized management servers for providing centralized authentication services is required for network device management. Maintaining local administrato...Rule High Severity -
SRG-APP-000516-NDM-000340
Group -
The Arista Multilayer Switch must support organizational requirements to conduct backups of system-level information contained in the information system when changes occur or weekly, whichever is sooner.
System-level information includes default and customized settings and security attributes, including ACLs that relate to the network device configuration, as well as software required for the execu...Rule Low Severity -
SRG-APP-000516-NDM-000317
Group -
SRG-APP-000516-NDM-000317
Group -
The Arista Multilayer Switch must have a local infrequently used account to be used as an account of last resort with full access to the network device.
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 High Severity -
The Arista Multilayer Switch must automatically audit account modification.
Since the accounts in the network device are privileged or system-level accounts, account management is vital to the security of the network device. Account management by a designated authority ens...Rule Medium Severity -
The Arista Multilayer Switch must protect against an individual (or process acting on behalf of an individual) falsely denying having performed organization-defined actions to be covered by non-repudiation.
This requirement supports non-repudiation of actions taken by an administrator and is required in order to maintain the integrity of the configuration management process. All configuration changes ...Rule Low Severity -
The Arista Multilayer Switch must generate audit records when successful/unsuccessful attempts to access privileges occur.
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 Low Severity -
The Arista Multilayer Switch must produce audit log records containing sufficient information to establish what type of event occurred.
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 Low Severity -
The Arista Multilayer Switch must be configured to prohibit the use of all unnecessary and/or nonsecure functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.
In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable...Rule Medium Severity -
The Arista Multilayer Switch must terminate all network connections associated with a device management session at the end of the session, or the session must be terminated after 10 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 Medium Severity -
The Arista Multilayer Switch must synchronize internal information system clocks to the authoritative time source when the time difference is greater than the organization-defined time period.
Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when condu...Rule Medium Severity -
The Arista Multilayer Switch must be configured to synchronize internal information system clocks with the primary and secondary time sources located in different geographic regions 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 -
Arista Multilayer Switches used for nonlocal maintenance sessions must implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications.
This requires the use of secure protocols instead of their unsecured counterparts, such as SSH instead of telnet, SCP instead of FTP, and HTTPS instead of HTTP.Rule Medium Severity -
The Arista Multilayer Switch must generate audit records for all account creations, modifications, disabling, and termination events.
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
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