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

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CVE-2020-5527

Severity CVSS v4.0:
Pending analysis
Type:
CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
Publication date:
30/03/2020
Last modified:
07/04/2020

Description

When MELSOFT transmission port (UDP/IP) of Mitsubishi Electric MELSEC iQ-R series (all versions), MELSEC iQ-F series (all versions), MELSEC Q series (all versions), MELSEC L series (all versions), and MELSEC F series (all versions) receives massive amount of data via unspecified vectors, resource consumption occurs and the port does not process the data properly. As a result, it may fall into a denial-of-service (DoS) condition. The vendor states this vulnerability only affects Ethernet communication functions.

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:cr800-q_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:cr800-q:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx3g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:fx3g:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx3gc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:fx3gc:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx3s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:fx3s:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx3u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:fx3u:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx3uc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:fx3uc:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:fx5u:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uc_firmware:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools