NVD

CVE-2021-20593 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

Incorrect Implementation of Authentication Algorithm in Mitsubishi Electric Air Conditioning System/Centralized Controllers (G-50A Ver.2.50 to Ver. 3.35, GB-50A Ver.2.50 to Ver. 3.35, 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) and Air Conditioning System/Expansion Controllers (PAC-YG50ECA Ver.2.20 and prior) allows a remote authenticated attacker to impersonate administrators to disclose configuration information of the air conditioning system and tamper information (e.g. operation information and configuration of air conditioning system) by exploiting this vulnerability.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 7.1 HIGH

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 5.5 MEDIUM

Vector: (AV:N/AC:L/Au:S/C:P/I:P/A:N)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://jvn.jp/vu/JVNVU96046575/index.html	Third Party Advisory
https://jvn.jp/vu/JVNVU96046575/index.html	Third Party Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-004_en.pdf	Vendor Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-004_en.pdf	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-287	Improper Authentication	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Initial Analysis by NIST 8/05/2021 11:17:43 AM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Added	CVSS V2		NIST (AV:N/AC:L/Au:S/C:P/I:P/A:N)
Added	CWE		NIST CWE-287
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:ae-200a_firmware::::::::* versions up to (including) 7.93 OR cpe:2.3:h:mitsubishi:ae-200a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:ae-200e_firmware::::::::* versions up to (including) 7.93 OR cpe:2.3:h:mitsubishi:ae-200e:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:ae-50a_firmware::::::::* versions up to (including) 7.93 OR cpe:2.3:h:mitsubishi:ae-50a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:ae-50e_firmware::::::::* versions up to (including) 7.93 OR cpe:2.3:h:mitsubishi:ae-50e:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:ag-150a-a_firmware::::::::* versions up to (including) 3.20 OR cpe:2.3:h:mitsubishi:ag-150a-a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:ag-150a-j_firmware::::::::* versions up to (including) 3.20 OR cpe:2.3:h:mitsubishi:ag-150a-j:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:cms-rmd-j_firmware::::::::* versions up to (including) 1.30 OR cpe:2.3:h:mitsubishi:cms-rmd-j:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:eb-50gu-a_firmware::::::::* versions up to (including) 7.09 OR cpe:2.3:h:mitsubishi:eb-50gu-a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:eb-50gu-j_firmware::::::::* versions up to (including) 7.09 OR cpe:2.3:h:mitsubishi:eb-50gu-j:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:ew-50a_firmware::::::::* versions up to (including) 7.93 OR cpe:2.3:h:mitsubishi:ew-50a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:ew-50e_firmware::::::::* versions up to (including) 7.93 OR cpe:2.3:h:mitsubishi:ew-50e:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:g-50a_firmware::::::::* versions from (including) 2.50 up to (including) 3.35 OR cpe:2.3:h:mitsubishi:g-50a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:gb-50a_firmware::::::::* versions from (including) 2.50 up to (including) 3.35 OR cpe:2.3:h:mitsubishi:gb-50a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:gb-50ada-a_firmware::::::::* versions up to (including) 3.20 OR cpe:2.3:h:mitsubishi:gb-50ada-a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:gb-50ada-j_firmware::::::::* versions up to (including) 3.20 OR cpe:2.3:h:mitsubishi:gb-50ada-j:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:pac-yg50eca_firmware::::::::* versions up to (including) 2.20 OR cpe:2.3:h:mitsubishi:pac-yg50eca:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:te-200a_firmware::::::::* versions up to (including) 7.93 OR cpe:2.3:h:mitsubishi:te-200a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:te-50a_firmware::::::::* versions up to (including) 7.93 OR cpe:2.3:h:mitsubishi:te-50a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishi:tw-50a_firmware::::::::* versions up to (including) 7.93 OR cpe:2.3:h:mitsubishi:tw-50a:-:::::::*
Changed	Reference Type	https://jvn.jp/vu/JVNVU96046575/index.html No Types Assigned	https://jvn.jp/vu/JVNVU96046575/index.html Third Party Advisory
Changed	Reference Type	https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-004_en.pdf No Types Assigned	https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-004_en.pdf Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-20593
NVD Published Date:
07/13/2021
NVD Last Modified:
11/21/2024
Source:
Mitsubishi Electric Corporation

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2021-20593 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/21/2024 12:46:50 AM

CVE Modified by Mitsubishi Electric Corporation 5/14/2024 4:05:31 AM

Initial Analysis by NIST 8/05/2021 11:17:43 AM

Quick Info