Firmware Update of NH-FB/FV Network Monitoring LED Signal Tower and NBM Interface Converter
Overview
We have identified the vulnerability of the NH-FB/FV Series and NBM Series to backdoor access by third parties.
When these units are connected to an external network, there is a potential risk of third-party attackers gaining access to the system.
To resolve this threat, we ask you to update your firmware.
Affected Models
NH-FB Series: firmware version 1.45 or earlier
NH-FV Series: firmware version 1.10 or earlier
NBM Series: firmware version 1.09 or earlier
Details
About the Threat
A hidden backdoor web interface enables users to connect to the device and gain access to its data. This could lead to the system being taken
over by third-party attackers and harm confidentiality.
Degrees of Vulnerability
High Vulnerability
When the device is connected to an external network, and can be accessed by any user.
Low Vulnerability
When the device is not connected to any external networks, or
When the device is protected by firewall, or other network security systems.
As of now, there has been no reports of cases where the devices’ functions have been wrongfully used from this vulnerability.
Solution
Update device to its latest firmware to prevent backdoor access.
The firmware can be downloaded from the ‘File Downloads’ button on the respective product pages of our website.
