APPENDIX A: Recommended secure hardening
guidelines
The UPS has been designed with cybersecurity as an important consideration.
Number of cybersecurity features are now offered in the product which, if
implemented as per the recommendations in this section, would minimize the
cybersecurity risk to the UPS. The “secure configuration” or “hardening”
guidelines provide information to the users to securely deploy and maintain their
product to adequately minimize the cybersecurity risks to their system.
Our company is committed to minimizing the cybersecurity risk in its products
and deploys cybersecurity best practices and latest cybersecurity technologies in
its products and solutions, making them more secure, reliable and competitive for
our customers. Our company also offers Cybersecurity Best Practices
whitepapers to its customers that can be referenced at www.eaton.com/
cybersecurity .
Category Description
Asset identification
and inventory
Keeping track of all the devices in the system is a prerequisite
for effective management of cybersecurity of a system. Make
sure that you maintain an inventory of all uniquely identify each
component. To facilitate this, the UPS supports the following
identifying information: manufacturer, type, serial number, f/w
version number, and location.
Users can extract device information at locations mentioned
below:
• Product number, serial number and UPS name are listed on
the Information screen
• Firmware versions can be found on the About screen
Physical protection Industrial Control Protocols do not offer cryptographic
protections at protocol level, at physical ports and at controller
mode switches, leaving them exposed to cybersecurity risk.
Physical security is an important layer of defense in such cases.
The UPS is designed with the consideration that it would be
deployed and operated in a physically secure location.
• Physical access to the communication lines should be
restricted to prevent any attempts of wiretapping or
sabotage. It is a best practice to use metal conduits for the
communication lines running from one cabinet to another
cabinet.
• An attacker with unauthorized physical access to the device
could cause serious disruption of the device functionality. A
combination of physical access controls to the location
should be used, such as locks, card readers, and/or guards.
• The UPS supports the following physical access ports:
RS232, USB and slots for communication cards. Access to
them must be restricted.
© Eaton Corporation plc 2020. All rights reserved. Revision: 006 Document ID: P-164000493 120
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Eaton 91PS/93PS UPS 8–40 kW User’s and Installation Guide
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