CVE-2021-20595: XEE
First published: Tue Jul 13 2021(Updated: )
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.
Credit: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mitsubishi G-50a | >=2.50<=3.35 | |
| Mitsubishi G-50a Firmware | ||
| Mitsubishi GB-50A | >=2.50<=3.35 | |
| Mitsubishi GB-50A | ||
| Mitsubishi Ag-150a-a | <=3.20 | |
| Mitsubishi Ag-150a-a Firmware | ||
| Mitsubishi AG-150A-J | <=3.20 | |
| Mitsubishi AG-150A-J | ||
| Mitsubishi Gb-50ada-a | <=3.20 | |
| Mitsubishi Gb-50ada-a Firmware | ||
| Mitsubishi Gb-50ada-j Firmware | <=3.20 | |
| Mitsubishi Gb-50ada-j Firmware | ||
| Mitsubishi Eb-50gu-a | <=7.09 | |
| Mitsubishi Eb-50gu-a Firmware | ||
| Mitsubishi Eb-50gu-j | <=7.09 | |
| Mitsubishi Eb-50gu-j Firmware | ||
| Mitsubishi Te-200a | <=7.93 | |
| Mitsubishi Ae-200a Firmware | ||
| Mitsubishi Ae-200e | <=7.93 | |
| Mitsubishi Ae-200e Firmware | ||
| Mitsubishi Ae-50a | <=7.93 | |
| Mitsubishi G-50a Firmware | ||
| Mitsubishi Ae-50a | <=7.93 | |
| Mitsubishi Ae-50e Firmware | ||
| Mitsubishi Ew-50a Firmware | <=7.93 | |
| Mitsubishi Ew-50a Firmware | ||
| Mitsubishi Ew-50e | <=7.93 | |
| Mitsubishi Ew-50e Firmware | ||
| Mitsubishi Te-200a | <=7.93 | |
| Mitsubishi Te-200a Firmware | ||
| Mitsubishi Te-200a | <=7.93 | |
| Mitsubishi Te-50a Firmware | ||
| Mitsubishi Tw-50a Firmware | <=7.93 | |
| Mitsubishi Tw-50a Firmware | ||
| Mitsubishi Cms-rmd-j Firmware | <=1.30 | |
| Mitsubishi Cms-rmd-j Firmware | ||
| Mitsubishi Pac-yg50eca Firmware | <=2.20 | |
| Mitsubishi Pac-yg50eca Firmware |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-20595.
What is the severity of CVE-2021-20595?
The severity of CVE-2021-20595 is high with a CVSS score of 8.2.
Which software versions are affected by CVE-2021-20595?
The affected software versions are 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, and GB-50ADA-J Ver.3.20 and prior.
How does CVE-2021-20595 impact Mitsubishi Electric Air Conditioning System/Centralized Controllers?
CVE-2021-20595 allows attackers to exploit an XML External Entity (XXE) vulnerability in the affected software.
Is there a fix available for CVE-2021-20595?
Yes, Mitsubishi Electric has released a security advisory with mitigation measures for CVE-2021-20595. Please refer to the vendor's advisory for more information.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/severity
- agent/weakness
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/mitsubishi
- canonical/mitsubishi g-50a
- version/mitsubishi g-50a/2.50
- version/mitsubishi g-50a/3.35
- canonical/mitsubishi g-50a firmware
- canonical/mitsubishi gb-50a
- version/mitsubishi gb-50a/2.50
- version/mitsubishi gb-50a/3.35
- canonical/mitsubishi ag-150a-a
- version/mitsubishi ag-150a-a/3.20
- canonical/mitsubishi ag-150a-a firmware
- canonical/mitsubishi ag-150a-j
- version/mitsubishi ag-150a-j/3.20
- canonical/mitsubishi gb-50ada-a
- version/mitsubishi gb-50ada-a/3.20
- canonical/mitsubishi gb-50ada-a firmware
- canonical/mitsubishi gb-50ada-j firmware
- version/mitsubishi gb-50ada-j firmware/3.20
- canonical/mitsubishi eb-50gu-a
- version/mitsubishi eb-50gu-a/7.09
- canonical/mitsubishi eb-50gu-a firmware
- canonical/mitsubishi eb-50gu-j
- version/mitsubishi eb-50gu-j/7.09
- canonical/mitsubishi eb-50gu-j firmware
- canonical/mitsubishi te-200a
- version/mitsubishi te-200a/7.93
- canonical/mitsubishi ae-200a firmware
- canonical/mitsubishi ae-200e
- version/mitsubishi ae-200e/7.93
- canonical/mitsubishi ae-200e firmware
- canonical/mitsubishi ae-50a
- version/mitsubishi ae-50a/7.93
- canonical/mitsubishi ae-50e firmware
- canonical/mitsubishi ew-50a firmware
- version/mitsubishi ew-50a firmware/7.93
- canonical/mitsubishi ew-50e
- version/mitsubishi ew-50e/7.93
- canonical/mitsubishi ew-50e firmware
- canonical/mitsubishi te-200a firmware
- canonical/mitsubishi te-50a firmware
- canonical/mitsubishi tw-50a firmware
- version/mitsubishi tw-50a firmware/7.93
- canonical/mitsubishi cms-rmd-j firmware
- version/mitsubishi cms-rmd-j firmware/1.30
- canonical/mitsubishi pac-yg50eca firmware
- version/mitsubishi pac-yg50eca firmware/2.20