CVE-2021-20595

CVSS V2 High 8.5 CVSS V3 High 8.2
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.
Overview
  • CVE ID
  • CVE-2021-20595
  • Assigner
  • Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-07-13T11:15:09
  • Last Modified Date
  • 2021-08-04T19:07:32
Weakness Enumerations
CWE URL
CWE-611 http://cwe.mitre.org/data/definitions/611.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:mitsubishi:g-50a_firmware:*:*:*:*:*:*:*:* 1 OR 2.50 3.35
cpe:2.3:h:mitsubishi:g-50a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:gb-50a_firmware:*:*:*:*:*:*:*:* 1 OR 2.50 3.35
cpe:2.3:h:mitsubishi:gb-50a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:ag-150a-a_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:mitsubishi:ag-150a-a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:ag-150a-j_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:mitsubishi:ag-150a-j:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:gb-50ada-a_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:mitsubishi:gb-50ada-a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:gb-50ada-j_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:mitsubishi:gb-50ada-j:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:eb-50gu-a_firmware:*:*:*:*:*:*:*:* 1 OR 7.09
cpe:2.3:h:mitsubishi:eb-50gu-a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:eb-50gu-j_firmware:*:*:*:*:*:*:*:* 1 OR 7.09
cpe:2.3:h:mitsubishi:eb-50gu-j:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:ae-200a_firmware:*:*:*:*:*:*:*:* 1 OR 7.93
cpe:2.3:h:mitsubishi:ae-200a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:ae-200e_firmware:*:*:*:*:*:*:*:* 1 OR 7.93
cpe:2.3:h:mitsubishi:ae-200e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:ae-50a_firmware:*:*:*:*:*:*:*:* 1 OR 7.93
cpe:2.3:h:mitsubishi:ae-50a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:ae-50e_firmware:*:*:*:*:*:*:*:* 1 OR 7.93
cpe:2.3:h:mitsubishi:ae-50e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:ew-50a_firmware:*:*:*:*:*:*:*:* 1 OR 7.93
cpe:2.3:h:mitsubishi:ew-50a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:ew-50e_firmware:*:*:*:*:*:*:*:* 1 OR 7.93
cpe:2.3:h:mitsubishi:ew-50e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:te-200a_firmware:*:*:*:*:*:*:*:* 1 OR 7.93
cpe:2.3:h:mitsubishi:te-200a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:te-50a_firmware:*:*:*:*:*:*:*:* 1 OR 7.93
cpe:2.3:h:mitsubishi:te-50a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:tw-50a_firmware:*:*:*:*:*:*:*:* 1 OR 7.93
cpe:2.3:h:mitsubishi:tw-50a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:cms-rmd-j_firmware:*:*:*:*:*:*:*:* 1 OR 1.30
cpe:2.3:h:mitsubishi:cms-rmd-j:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishi:pac-yg50eca_firmware:*:*:*:*:*:*:*:* 1 OR 2.20
cpe:2.3:h:mitsubishi:pac-yg50eca:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 8.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 7.8
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • HIGH
  • Base Score
  • 8.2
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4.2
References
Reference URL Reference Tags
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-005_en.pdf Vendor Advisory
https://jvn.jp/vu/JVNVU93086468/index.html Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20595
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20595
History
Created Old Value New Value Data Type Notes
2022-05-10 06:58:18 Added to TrackCVE
2022-12-05 05:54:31 2021-07-13T11:15Z 2021-07-13T11:15:09 CVE Published Date updated
2022-12-05 05:54:31 2021-08-04T19:07:32 CVE Modified Date updated
2022-12-05 05:54:31 Analyzed Vulnerability Status updated