Riverbed SteelHead CX v8 NDM Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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Riverbed Optimization System (RiOS) must disable the local Shark and Monitor accounts so they cannot be used as shared accounts by users.
The Monitor and Shark accounts which are default group accounts with shared credentials. Monitor and Shark accounts are not enabled by default, but cannot be deleted since these network tools are d...Rule Medium Severity -
Riverbed Optimization System (RiOS) must automatically log event for 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 Low Severity -
Riverbed Optimization System (RiOS) must generate alerts that can be forwarded to the administrators and ISSO when local accounts are created.
An authorized insider or individual who maliciously creates a local account could gain immediate access from a remote location to privileged information on a critical security device. Sending an al...Rule Medium Severity -
Riverbed Optimization System (RiOS) must generate alerts that can be forwarded to the administrators and ISSO when accounts are modified.
Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply...Rule Low Severity -
Riverbed Optimization System (RiOS) must generate a log event when privileged functions are executed.
Misuse of privileged functions, either intentionally or unintentionally by authorized users, or by unauthorized external entities that have compromised information system accounts, is a serious and...Rule Low Severity -
Riverbed Optimization System (RiOS) must limit the number of concurrent sessions to one (1) for each administrator account and/or administrator account type.
Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administr...Rule Medium Severity -
Riverbed Optimization System (RiOS) must automatically terminate a network administrator session after organization-defined conditions or trigger events requiring session disconnect.
Automatic session termination addresses the termination of administrator-initiated logical sessions in contrast to the termination of network connections that are associated with communications ses...Rule Medium Severity -
Riverbed Optimization System (RiOS) must alert the ISSO and SA (at a minimum) in the event of an audit processing failure.
It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an ...Rule Medium Severity -
Riverbed Optimization System (RiOS) must protect audit information from any type of unauthorized read access.
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 -
Riverbed Optimization System (RiOS) 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 -
Riverbed Optimization System (RiOS) must protect audit tools from unauthorized 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 operations on a...Rule Medium Severity -
Riverbed Optimization System (RiOS) 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 -
Riverbed Optimization System (RiOS) must generate a log event for the enforcement actions used to restrict access associated with changes to the device.
Without auditing the enforcement of access restrictions against changes to the device configuration, it will be difficult to identify attempted attacks, and an audit trail will not be available for...Rule Medium Severity -
Riverbed Optimization System (RiOS) must employ automated mechanisms to centrally verify 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 Medium Severity -
Riverbed Optimization System (RiOS) 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 -
Riverbed Optimization System (RiOS) must authenticate SNMP server before establishing a local, remote, and/or network connection using bidirectional authentication that is cryptographically based.
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 -
Riverbed Optimization System (RiOS) 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 -
Riverbed Optimization System (RiOS) performing maintenance functions must restrict use of these functions to authorized personnel only.
There are security-related issues arising from software brought into the network device specifically for diagnostic and repair actions (e.g., a software packet sniffer installed on a device in orde...Rule Medium Severity -
Riverbed Optimization System (RiOS) 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 application must reveal error messages only to authorized individuals (ISSO, ISSM, and SA).
Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state. Additionally, sensitive account informatio...Rule Medium Severity
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