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Firewall/Network Access Control Policy

Version 1.0.3

Purpose

This policy is to ensure that the University’s IT Resources are properly protected behind network firewalls and other network devices that utilize access control lists (ACLs).

Scope

This IT policy, and all policies referenced herein, shall apply to all members of the University community including faculty, students, administrative officials, staff, alumni, authorized guests, delegates, and independent contractors (the “User(s)” or “you”) who use, access, or otherwise employ, locally or remotely, the University’s IT Resources, whether individually controlled, shared, stand-alone, or networked.

Policy Statement

  • University entities who have the ability to grant access to restricted network devices including but not limited to routers, switches, and firewalls must abide by the rules in this policy.
  • Verify that firewall, switch, and router configuration standards are reviewed and examined on a semi-annual basis.
  • All network devices that allow access to data, systems, and networks must contain a default “deny all” inbound access rule.
  • All network devices on high-risk networks, such as the PCI[1] and DMZ networks, must contain a “deny all” rule on outbound traffic.
  • Direct public access must be prohibited between the internet and any University IT Resources components on the PCI network.
    • Outbound traffic from the PCI network to the internet must be explicitly authorized.
  • Any request for access must be approved by the University Information Security Office via the Firewall/Network ACL Change procedure.

[1] The Payment Card Industry Security Standards Council (PCI SSC) was launched on September 7, 2006, to manage the ongoing evolution of the Payment Card Industry (PCI) security standards with a focus on improving payment account security throughout the transaction process. The PCI DSS is administered and managed by the PCI SSC, an independent body that was created by the major payment card brands (Visa, MasterCard, American Express, Discover and JCB).

Definitions

In computer security, a DMZ or demilitarized zone is a physical or logical subnetwork that contains and exposes an organization's external-facing services to an untrusted network, usually a larger network such as the Internet.

IT Resources include computing, networking, communications, application, and telecommunications systems, infrastructure, hardware, software, data, databases, personnel, procedures, physical facilities, cloud-based vendors, Software as a Service (SaaS) vendors, and any related materials and services.

 

Networking devices, also known as network equipment or hardware, include but are not limited to routers, switches, and firewalls.

Related Policies and Procedures

Implementation Information

Review Frequency: Annual
Responsible Person: Director, IT Risk and Data Integrity
Approved By: CISO
Approval Date: March 1, 2017

Revision History

Version:

Date:

Description:

1.0

01/26/2017

Initial policy

1.0.1

03/01/2017

Grammatical changes to definitions.  No changes to the policy.

1.0.2

05/23/2018

Updated disclaimer, scope, and definitions

1.0.3

01/04/2019

Updated links

Policy Disclaimer Statement

Deviations from policies, procedures, or guidelines published and approved by the University Information Security Office (UISO) may only be done cooperatively between the UISO and the requesting entity with sufficient time to allow for appropriate risk analysis, documentation, and possible presentation to authorized University representatives. Willful failure to adhere to UISO written policies may be met with University sanctions.