Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-20595

Severity CVSS v4.0:
Pending analysis
Type:
CWE-611 Improper Restriction of XML External Entity Reference ('XXE')
Publication date:
13/07/2021
Last modified:
04/08/2021

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.20 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): High

Base Score 3.x
8.20
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 8.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): Complete

Base Score 2.0
8.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:mitsubishi:g-50a_firmware:*:*:*:*:*:*:*:* 2.50 (including) 3.35 (including)
cpe:2.3:h:mitsubishi:g-50a:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishi:gb-50a_firmware:*:*:*:*:*:*:*:* 2.50 (including) 3.35 (including)
cpe:2.3:h:mitsubishi:gb-50a:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishi:ag-150a-a_firmware:*:*:*:*:*:*:*:* 3.20 (including)
cpe:2.3:h:mitsubishi:ag-150a-a:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishi:ag-150a-j_firmware:*:*:*:*:*:*:*:* 3.20 (including)
cpe:2.3:h:mitsubishi:ag-150a-j:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishi:gb-50ada-a_firmware:*:*:*:*:*:*:*:* 3.20 (including)
cpe:2.3:h:mitsubishi:gb-50ada-a:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishi:gb-50ada-j_firmware:*:*:*:*:*:*:*:* 3.20 (including)
cpe:2.3:h:mitsubishi:gb-50ada-j:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishi:eb-50gu-a_firmware:*:*:*:*:*:*:*:* 7.09 (including)
cpe:2.3:h:mitsubishi:eb-50gu-a:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishi:eb-50gu-j_firmware:*:*:*:*:*:*:*:* 7.09 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools