CVE-2021-20593
Mitsubishi Electric Air Conditioning System Centralized Controllers Authentication Bypass
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.
INFO
Published Date :
July 13, 2021, 2:15 p.m.
Last Modified :
Aug. 5, 2021, 3:17 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.2
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-20593
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-20593.
| URL | Resource |
|---|---|
| https://jvn.jp/vu/JVNVU96046575/index.html | Third Party Advisory |
| https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-004_en.pdf | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-20593 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20593 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 05, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N 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 Added CWE NIST CWE-287 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: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: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: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: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: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: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:-:*:*:*:*:*:*:* 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:pac-yg50eca_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.20 OR cpe:2.3:h:mitsubishi:pac-yg50eca:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20593 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-20593
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.00%
score
0.36668
percentile