Juniper Router NDM Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The Juniper router must be configured to implement cryptographic mechanisms to protect the confidentiality of remote maintenance sessions.
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. If unsecured protocols (lacking cryp...Rule High Severity -
SRG-APP-000435-NDM-000315
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SRG-APP-000495-NDM-000318
Group -
SRG-APP-000499-NDM-000319
Group -
SRG-APP-000503-NDM-000320
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SRG-APP-000504-NDM-000321
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The Juniper router must be configured to generate log records for privileged activities.
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 -
SRG-APP-000506-NDM-000323
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SRG-APP-000515-NDM-000325
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The Juniper router must be configured to off-load log records onto a different system than the system being audited.
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-000334
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SRG-APP-000516-NDM-000336
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The Juniper router must be configured to use at least two authentication servers for the purpose of authenticating users prior to granting administrative access.
Centralized management of user accounts and authentication increases the administrative access to the router. This control is particularly important protection against the insider threat. With robu...Rule High Severity -
SRG-APP-000516-NDM-000340
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The Juniper router must be configured to support organizational requirements to conduct backups of the configuration when changes occur.
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 Medium Severity -
SRG-APP-000516-NDM-000344
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SRG-APP-000516-NDM-000350
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SRG-APP-000516-NDM-000317
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SRG-APP-000516-NDM-000351
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The Juniper router must be configured to limit the number of concurrent management sessions to an organization-defined number.
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 -
The Juniper router must be configured to 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 Juniper router must be configured to enforce approved authorizations for controlling the flow of management information within the device based on control policies.
A mechanism to detect and prevent unauthorized communication flow must be configured or provided as part of the system design. If management information flow is not enforced based on approved autho...Rule Medium Severity -
The Juniper router must be configured to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the device.
Display of the DoD-approved use notification before granting access to the network device ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executi...Rule Medium Severity -
The Juniper router must be configured to protect against 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 Medium Severity -
The Juniper router must be configured to protect audit information from unauthorized modification.
Audit information includes all information (e.g., audit records, audit settings, and audit reports) needed to successfully audit network device activity. If audit data were to become compromised, ...Rule Medium Severity -
The Juniper router must be configured to prohibit the use of all unnecessary and nonsecure functions and services.
Network devices are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational op...Rule High Severity -
The Juniper router 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.
Authentication for administrative (privileged level) access to the device is required at all times. An account can be created on the device's local database for use when the authentication server i...Rule Medium Severity -
The Juniper router must be configured to 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 -
The Juniper router must be configured to 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 -
The Juniper router must be configured to enforce password complexity by requiring that at least one lowercase 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 -
The Juniper router must be configured to enforce password complexity by requiring that at least one special 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 -
The Juniper router must be configured to automatically audit account enabling actions.
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 Medium Severity -
The Juniper router must be configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements.
In order to ensure network devices have a sufficient storage capacity in which to write the audit logs, they need to be able to allocate audit record storage capacity. The task of allocating audit...Rule Medium Severity -
The Juniper router must be configured to generate an alert for all audit failure events.
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 a real-time alert, security personnel may be unaware of an impe...Rule Medium Severity -
The Juniper router must be configured to synchronize its clock with the primary and secondary time sources 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 -
The Juniper router 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 -
The Juniper router must be configured to encrypt SNMP messages using a FIPS 140-2 approved algorithm.
Without the strong encryption that is provided by the SNMP Version 3 User-based Security Model (USM), an unauthorized user can gain access to network management information that can be used to crea...Rule Medium Severity -
The Juniper router must be configured to use FIPS-validated Keyed-Hash Message Authentication Code (HMAC) to protect the integrity of remote maintenance sessions.
Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be ...Rule High Severity -
The Juniper router 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 require...Rule Medium Severity -
The Juniper router must be configured to generate log records when administrator privileges are modified.
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 Juniper router must be configured to generate log records when administrator privileges are deleted.
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 Juniper router must be configured to generate audit records when successful/unsuccessful logon attempts 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 Medium Severity -
The Juniper router must be configured to generate log records when concurrent logons from different workstations 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 Medium Severity -
The Juniper router must be configured to generate log records for a locally developed list of auditable events.
Auditing and logging are key components of any security architecture. Logging the actions of specific events provides a means to investigate an attack, recognize resource utilization or capacity th...Rule Medium Severity -
The Juniper router must be configured to obtain its public key certificates from an appropriate certificate policy through an approved service provider.
For user certificates, each organization obtains certificates from an approved, shared service provider, as required by OMB policy. For federal agencies operating a legacy public key infrastructure...Rule Medium Severity -
The Juniper router must be configured to send log data to at least two syslog servers for the purpose of forwarding alerts to the administrators and the Information System Security Officers (ISSO).
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 High Severity -
The Juniper router must be configured with a master password that is used to generate encrypted keys for shared secrets.
By default, shared secrets in a Junos configuration only use an obfuscation algorithm ($9$ format), which is not very strong and can easily be decrypted. Strong encryption for configured secrets ca...Rule Medium Severity -
The Juniper router must be running a Junos release that is currently supported by Juniper Networks.
Network devices running an unsupported operating system lack current security fixes required to mitigate the risks associated with recent vulnerabilities. Running a supported release also enables o...Rule High Severity
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