[Control systems] Mitsubishi Electric security advisory

Number: AV21-312
Date: 5 July 2021

On 1 July 2021 ICS-CERT published ICS Advisories to highlight vulnerabilities in the following products:

  • Air Conditioning System/Centralized Controllers:             

    • G-50A - versions 2.50 to 3.35

    • GB-50A - versions 2.50 to 3.35

    • AG-150A-A - version 3.20 and prior

    • AG-150A-J – version 3.20 and prior

    • GB-50ADA-A - version 3.20 and prior

    • GB-50ADA-J - version 3.20 and prior

    • EB-50GU-A - version 7.09 and prior

    • EB-50GU-J - version 7.09 and prior

    • AE-200A - version 7.93 and prior

    • AE-200E - version 7.93 and prior

    • AE-50A - version 7.93 and prior

    • AE-50E - version 7.93 and prior

    • EW-50A - version 7.93 and prior

    • EW-50E - version 7.93 and prior

    • TE-200A - version 7.93 and prior

    • TE-50A - version 7.93 and prior

    • TW-50A - version 7.93 and prior

    • CMS-RMD-J - version 1.30 and prior

    • G-50A - version 3.35 and prior

    • GB-50A - version 3.35 and prior

    • GB-24A - version 9.11 and prior

  • Air Conditioning System/Expansion Controller:  

    • PAC-YG50ECA - version 2.20 and prior

  • Air Conditioning System/BM adapter:    

    • BAC-HD150 - version 2.21 and prior

Exploitation of these vulnerabilities may lead to denial-of-service or information disclosure for the purpose of system tampering.

The Cyber Centre encourages users and administrators to review the provided web links, perform the suggested mitigations and apply the necessary updates if available.

ICS Advisory (ICSA-21-182-04)
 https://us-cert.cisa.gov/ics/advisories/icsa-21-182-04

ICS Advisory (ICSA-21-182-05)
 https://us-cert.cisa.gov/ics/advisories/icsa-21-182-05

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, 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.

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