CVE-2021-20595
Description
Improper Restriction of XML External Entity Reference vulnerability in Mitsubishi Electric Air Conditioning System/Centralized Controllers (G-50A Ver.3.35 and prior, GB-50A Ver.3.35 and prior, GB-24A Ver.9.11 and prior, AG-150A-A Ver.3.20 and prior, AG-150A-J Ver.3.20 and prior, GB-50ADA-A Ver.3.20 and prior, GB-50ADA-J Ver.3.20 and prior, EB-50GU-A Ver 7.09 and prior, EB-50GU-J Ver 7.09 and prior, AE-200A Ver 7.93 and prior, AE-200E Ver 7.93 and prior, AE-50A Ver 7.93 and prior, AE-50E Ver 7.93 and prior, EW-50A Ver 7.93 and prior, EW-50E Ver 7.93 and prior, TE-200A Ver 7.93 and prior, TE-50A Ver 7.93 and prior, TW-50A Ver 7.93 and prior, CMS-RMD-J Ver.1.30 and prior), Air Conditioning System/Expansion Controllers (PAC-YG50ECA Ver.2.20 and prior) and Air Conditioning System/BM adapter(BAC-HD150 Ver.2.21 and prior) allows a remote unauthenticated attacker to disclose some of data in the air conditioning system or cause a DoS condition by sending specially crafted packets.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mitsubishi g-50a_firmware | 2.50 ≤ v ≤ 3.35 | — |
| mitsubishi gb-50a_firmware | 2.50 ≤ v ≤ 3.35 | — |
| mitsubishi ag-150a-a_firmware | v ≤ 3.20 | — |
| mitsubishi ag-150a-j_firmware | v ≤ 3.20 | — |
| mitsubishi gb-50ada-a_firmware | v ≤ 3.20 | — |
| mitsubishi gb-50ada-j_firmware | v ≤ 3.20 | — |
| mitsubishi eb-50gu-a_firmware | v ≤ 7.09 | — |
| mitsubishi eb-50gu-j_firmware | v ≤ 7.09 | — |
| mitsubishi ae-200a_firmware | v ≤ 7.93 | — |
| mitsubishi ae-200e_firmware | v ≤ 7.93 | — |
| mitsubishi ae-50a_firmware | v ≤ 7.93 | — |
| mitsubishi ae-50e_firmware | v ≤ 7.93 | — |
| mitsubishi ew-50a_firmware | v ≤ 7.93 | — |
| mitsubishi ew-50e_firmware | v ≤ 7.93 | — |
| mitsubishi te-200a_firmware | v ≤ 7.93 | — |
| mitsubishi te-50a_firmware | v ≤ 7.93 | — |
| mitsubishi tw-50a_firmware | v ≤ 7.93 | — |
| mitsubishi cms-rmd-j_firmware | v ≤ 1.30 | — |
| mitsubishi pac-yg50eca_firmware | v ≤ 2.20 | — |
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