Ensuring Protocols, Ports, and Services, compliance
Rule Title: RiOS 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.
STIG ID: RICX-AG-000088
Rule ID: SV-77319r1_rule Severity: CAT II
Vuln ID: V-62829 Class: Unclass
In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (that is, embedding of data types within data types); organizations must disable or restrict unused or unnecessary physical and logical ports and protocols on information systems.
ALGs are capable of providing a wide variety of functions and services. Some of the functions and services provided by default might not be necessary to support essential organizational operations. 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. RiOS is a key network element for preventing these noncompliant ports, protocols, and services from causing harm to DoD information systems.
The network ALG 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 nonsecure ports, protocols, and/or services. However, sources for further policy filters are the Information Assurance Vulnerability Management (IAVM) and the PPSM requirements.
Verifying PPSM CAL compliance
Verify that RiOS is configured to disable unrelated or unneeded application proxy services.
Obtain documentation for which applications are approved and disapproved for optimization by the organization.
1. Connect to the Management Console.
2. Choose Optimization to display the menu.
3. Verify that the approved or disapproved applications are enabled or disabled according to organization requirements. For example, open the pages for Lotus Notes, Citrix, and so on to make sure only approved applications are enabled.
If optimization features are not enabled or disabled according to the organization’s requirements, this is a security vulnerability finding.
Achieving PPSM CAL compliance
Check to see if services other than the authorized services are enabled for optimization.
Obtain documentation for which applications are approved and disapproved for optimization by the organization.
1. Connect to the Management Console.
2. Choose Optimization to display the menu.
3. Verify that the approved or disapproved applications are enabled or disabled according to organization requirements. For example, open the pages for Lotus Notes, Citrix, and so forth to make sure only approved applications are enabled.