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

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CVE-2020-5656

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
02/11/2020
Last modified:
10/11/2020

Description

Improper access control vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet.

Impact

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

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

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

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:mitsubishielectric:melsec_iq-rj71eip91_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_iq-rj71eip91:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_iq-rj71pn92_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_iq-rj71pn92:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_iq-rd81dl96_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_iq-rd81dl96:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_iq-rd81mes96n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_iq-rd81mes96n:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:melsec_iq-rd81opc96_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:melsec_iq-rd81opc96:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools