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

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CVE-2020-5652

Severity CVSS v4.0:
Pending analysis
Type:
CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
Publication date:
02/11/2020
Last modified:
19/11/2020

Description

Uncontrolled resource consumption vulnerability in Ethernet Port on MELSEC iQ-R, Q and L series CPU modules (R 00/01/02 CPU firmware versions '20' and earlier, R 04/08/16/32/120 (EN) CPU firmware versions '52' and earlier, R 08/16/32/120 SFCPU firmware versions '22' and earlier, R 08/16/32/120 PCPU all versions, R 08/16/32/120 PSFCPU all versions, R 16/32/64 MTCPU all versions, Q03 UDECPU, Q 04/06/10/13/20/26/50/100 UDEHCPU serial number '22081' and earlier , Q 03/04/06/13/26 UDVCPU serial number '22031' and earlier, Q 04/06/13/26 UDPVCPU serial number '22031' and earlier, Q 172/173 DCPU all versions, Q 172/173 DSCPU all versions, Q 170 MCPU all versions, Q 170 MSCPU all versions, L 02/06/26 CPU (-P) and L 26 CPU - (P) BT all versions) allows a remote unauthenticated attacker to stop the Ethernet communication functions of the products via a specially crafted packet, which may lead to a denial of service (DoS) condition .

Impact

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

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

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

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:mitsubishielectric:melsec_q-q04udpvcpu_firmware:22031:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_q-q04udpvcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_q-q06udpvcpu_firmware:22031:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_q-q06udpvcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_q-q13udpvcpu_firmware:22031:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_q-q13udpvcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_q-q26udpvcpu_firmware:22031:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_q-q26udpvcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_q-q03udvcpu_firmware:22031:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_q-q03udvcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_q-q04udvcpu_firmware:22031:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_q-q04udvcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_q-q13udvcpu_firmware:22031:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_q-q13udvcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_q-q26udvcpu_firmware:22031:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools