[Control systems] B&R security advisory

Number: AV21-201
Date: 30 April 2021

On 30 April 2021 B&R published a Cyber Security Cyber securityThe protection of digital information, as well as the integrity of the infrastructure housing and transmitting digital information. More specifically, cyber security includes the body of technologies, processes, practices and response and mitigation measures designed to protect networks, computers, programs and data from attack, damage or unauthorized access so as to ensure confidentiality, integrity and availability. Advisory to address a vulnerability VulnerabilityA flaw or weakness in the design or implementation of an information system or its environment that could be exploited to adversely affect an organization's assets or operations. in the following versions of its:

• B&R HMI products :
  • 4B1400.00-K30 – version E0 and prior
  • 4B1400.00-K32 – version E0 and prior
  • 4B1400.00-K59 – version D0 and prior
  • 4B1400.00-K60 – version D0 and prior
  • 4B1400.00-K63 – version C0 and prior
  • 4B1400.00-K64 – version E0 and prior
  • 4B1400.00-K65 – version D0 and prior
  • 4B1400.00-K68 – version E0 and prior
  • 4B1400.00-K69 – version D0 and prior
  • 4B1400.00-K70 – version E0 and prior
  • 4B1400.00-K73 – version D0 and prior
  • 5AP933.156B-K12 – version A0 and prior
  • 5AP93D.156C-K01 – version G0 and prior
  • 5PC725.1505-K15 – version H0 and prior
  • 5PC725.1505-K16 – version D0 and prior
  • 5PC725.1505-K17 – version C0 and prior
  • 5PC725.1505-K25 – version G0 and prior
  • 5PC725.1505-K26 – version E0 and prior
  • 5PC725.1505-K27 – version C0 and prior
  • 5PC725.1505-K14 – version I0 and prior
  • 5PC725.1505-K24 – version I0 and prior
• B&R I/O system products:
  • X20BC00E3 – version D9 and prior
  • X20cBC00E3 – version D9 and prior
  • X67BCE321.L12 – version C9 and prior

Exploitation of this vulnerability by an unauthenticated actor with network access may trigger a Denial-of-Service (DoS DOSSee denial-of-service attack. ) on the affected B&R products, thus compromising the availability AvailabilityThe ability for the right people to access the right information or systems when needed. Availability is applied to information assets, software, and hardware (infrastructure and its components). Implied in its definition is that availability includes the protection of assets from unauthorized access and compromise. of the device.

The Cyber Centre encourages users and administrators to review the provided web link and perform the suggested mitigations.

Cyber Security Advisory #02/2021
https://www.br-automation.com/downloads_br_productcatalogue/assets/1619200175188-en-original-1.1.pdf

Note to Readers

The Canadian Centre for Cyber Security (Cyber Centre) operates as part of the Communications Security Establishment.  We are Canada’s national authority on cyber security and we lead the government’s response to cyber security events. As Canada's national computer security incident response team, the Cyber Centre works in close collaboration with government departments, critical infrastructure Critical infrastructureProcesses, systems, facilities, technologies, networks, assets, and services essential to the health, safety, security, or economic well-being of Canadians and the effective functioning of government. Critical infrastructure can be stand-alone or interconnected and interdependent within and across provinces, territories, and national borders. Disruptions of critical infrastructure could result in catastrophic loss of life, adverse economic effects, and significant harm to public confidence. , Canadian businesses and international partners to prepare for, respond to, mitigate, and recover from cyber events. We do this by providing authoritative advice and support, and coordinating information sharing and incident response. The Cyber Centre is outward-facing, welcoming partnerships that help build a stronger, more resilient cyber space in Canada.