The Juniper router must be configured to be configured to prohibit the use of all unnecessary and/or nonsecure functions, ports, protocols, and/or services.

From Juniper Router NDM Security Technical Implementation Guide

Part of SRG-APP-000142-NDM-000245

Associated with: CCI-000382

JUNI-ND-000470_rule The Juniper router must be configured to be configured to prohibit the use of all unnecessary and/or nonsecure functions, ports, protocols, and/or services.

Vulnerability discussion

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 unused or unnecessary physical and logical ports/protocols on information systems.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 operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., email and web services); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the network device must support the organizational requirements providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved. Some network devices have capabilities enabled by default; if these capabilities are not necessary, they must be disabled. If a particular capability is used, then it must be documented and approved.

Check content

Review the services that have been enabled as shown in the following configuration example: services { finger; telnet; xnm-clear-text; netconf { ssh; } } Services such as finger, telnet, and clear text-based JUNOScript connections should never be enabled. Other services such as Netconf, FTP, DHCP, and SSL-based JUNOScript connections should only be enabled if operationally required. If the router is not configured to prohibit the use of all unnecessary and non-secure functions, ports, protocols, and services, this is a finding.

Fix text

Disable the following services if enabled as shown in the example below. [edit system services] delete telnet delete finger delete xnm-clear-text

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.

Powered by sagemincer