The Juniper SRX Services Gateway VPN must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.

From Juniper SRX SG VPN Security Technical Implementation Guide

Part of SRG-NET-000132

Associated with: CCI-000382

SV-81153r1_rule The Juniper SRX Services Gateway VPN must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.

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 or restrict unused or unnecessary physical and logical ports/protocols on information systems.DoD continually assesses the ports, protocols, and services that can be used for network communications. Some ports, protocols or services have known exploits or security weaknesses. Network traffic using these ports, protocols, and services must be prohibited or restricted in accordance with DoD policy. The PPSM CAL and vulnerability assessments provide an authoritative source for ports, protocols, and services that are unauthorized or restricted across boundaries on DoD networks.The Juniper SRX must be configured to prevent or restrict the use of prohibited ports, protocols, and services throughout the network by filtering the network traffic and disallowing or redirecting traffic as necessary. Default and updated policy filters from the vendors will disallow older version of protocols and applications and will address most known non-secure ports, protocols, and/or services.

Check content

Entering the following commands from the configuration level of the hierarchy. [edit] show security services If functions, ports, protocols, and services identified on the PPSM CAL are not disabled, this is a finding.

Fix text

Ensure functions, ports, protocols, and services identified on the PPSM CAL are not used for system services configuration. [edit] show security services Compare the services that are enabled, including the port, services, protocols, and functions. Consult the Juniper knowledge base and configuration guides to determine the commands for disabling each port, protocols, services, or functions that is not in compliance with the PPSM CAL and vulnerability assessments.

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