QID 590708

Date Published: 2022-07-18

QID 590708: Mitsubishi Electric Air Conditioning System Vulnerability (ICSA-21-182-04)

AFFECTED PRODUCTS
Mitsubishi Electric reports this vulnerability affects the following air conditioning systems:
Air Conditioning System / Centralized Controllers affected:


G-50A: Version 2.50 to Version 3.35
GB-50A: Version 2.50 to Version 3.35
AG-150A-A: Versions 3.20 and prior
AG-150A-J: Versions 3.20 and prior
GB-50ADA-A: Versions 3.20 and prior
GB-50ADA-J: Versions 3.20 and prior
EB-50GU-A: Versions 7.09 and prior
EB-50GU-J: Versions 7.09 and prior
AE-200A: Versions 7.93 and prior
AE-200E: Versions 7.93 and prior
AE-50A: Versions 7.93 and prior
AE-50E: Versions 7.93 and prior
EW-50A: Versions 7.93 and prior
EW-50E: Versions 7.93 and prior
TE-200A: Versions 7.93 and prior
TE-50A: Versions 7.93 and prior
TW-50A: Versions 7.93 and prior
CMS-RMD-J: Versions 1.30 and prior
An attacker could exploit this vulnerability by impersonating administrators to disclose configuration information of the air conditioning system in order to tamper with operation information and system configuration.

  • CVSS V3 rated as High - 7.1 severity.
  • CVSS V2 rated as Medium - 5.5 severity.
    • Solution

    Customers are advised to refer to CERT MITIGATIONS section ICSA-21-182-04 for affected packages and patching details.
    Air Conditioning System / Expansion Controllers are affected:

    Vendor References

    CVEs related to QID 590708

    CVE-2021-20593 |
    Software Advisories
    Advisory ID Software Component Link
    ICSA-21-182-04 URL Logo www.us-cert.gov/ics/advisories/ICSA-21-182-04
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