Belden HIRSCHMANN HiOS-2A, User Manual

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Device security
2.6 Security configuration
32
UM Security BRS-2A
Release 8.7 05/2022
2.6.12 Disable loading a configuration profile that lacks a valid fingerprint
Disable the loading of a configuration profile that lacks a valid fingerprint. This helps secure the
device against loading an unsigned configuration profile placed on an external memory and
plugged into the device with the intention that the unsigned configuration profile will take effect after
a reboot.
See the user manual "Configuration" on how to disable loading an unsigned configuration profile
from an external memory.
2.6.13 Disable insecure management protocols
Disable insecure management protocols:

Disable SNMPv1 (delivery state: disabled).

Disable SNMPv2 (delivery state: disabled).

Disable Telnet (delivery state: disabled).

Disable HTTP (delivery state: enabled (redirects to HTTPS)).
2.6.14 Configure management IP access restrictions
The device allows restricting the management access to the device to a source IP address range.
You specify the address range by giving an IP address and a netmask.
You can configure the management access IP restrictions individually for each protocol or for a
group of protocols.
Note: Protocols with the delivery state Enabled (bolded) may be useful for the initial configuration
of the device. However, they may be considered insecure for production. Disable these protocols
as soon as you no longer need them.
Confirm that at least one of the configured management access IP restrictions is active. If no
restriction is active, this leads to unrestricted management access for all enabled protocols.
Table 2: Management access protocol overview
Protocol Recommendation for production Delivery state
HTTP Disabled Enabled (redirects to HTTPS)
HTTPS Enabled Enabled
SNMPv1 Disabled Disabled
SNMPv2 Disabled Disabled
SNMPv3 Enabled Enabled
Telnet Disabled Disabled
SSH Enabled Enabled
IEC 61850-MMS Disabled Disabled
Modbus TCP Disabled Disabled
EtherNet/IP Disabled Disabled
OPC UA Server Disabled Disabled
PROFINET Disabled Disabled