Mitsubishielectric Melsec Uncontrolled Resource Consumption

high Tenable.ot Plugin ID 500395
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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 .

Solution

Refer to vendor advisory for Security Updates

See Also

https://jvn.jp/vu/JVNVU96558207/index.html

https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-013.pdf

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-013_en.pdf

Plugin Details

Severity: High

ID: 500395

Version: 1.0

Type: local

Family: SCADA

Published: 8/10/2021

Updated: 8/10/2021

Risk Information

CVSS Score Source: CVE-2020-5652

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:2.3:o:mitsubishielectric:melsec_iq-r00cpu_firmware:20:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r01cpu_firmware:20:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r02cpu_firmware:20:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r04encpu_firmware:52:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r08encpu_firmware:52:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r08pcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r08psfcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r08sfcpu_firmware:22:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r120encpu_firmware:52:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r120pcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r120psfcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r120sfcpu_firmware:22:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r16encpu_firmware:52:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r16mtcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r16pcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r16psfcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r16sfcpu_firmware:22:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r32encpu_firmware:52:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r32mtcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r32pcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r32psfcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r32sfcpu_firmware:22:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_iq-r64mtcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_l02cpu-p_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_l06cpu-p_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_l26cpu-p_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_l26cpu-pbt_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q03udecpu_firmware:22081:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q03udvcpu_firmware:22031:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q04udehcpu_firmware:22081:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q04udpvcpu_firmware:22031:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q04udvcpu_firmware:22031:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q06udehcpu_firmware:22081:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q06udpvcpu_firmware:22031:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q100udehcpu_firmware:22081:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q10udehcpu_firmware:22081:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q13udehcpu_firmware:22081:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q13udpvcpu_firmware:22031:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q13udvcpu_firmware:22031:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q170mcpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q170mscpu-s1_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q172dcpu-s1_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q172dscpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q173dcpu-s1_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q173dscpu_firmware:-:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q20udehcpu_firmware:22081:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q26udehcpu_firmware:22081:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q26udpvcpu_firmware:22031:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q26udvcpu_firmware:22031:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-q50udehcpu_firmware:22081:*:*:*:*:*:*:*, cpe:2.3:o:mitsubishielectric:melsec_q-qmr-mq100_firmware:-:*:*:*:*:*:*:*

Patch Publication Date: 11/2/2020

Vulnerability Publication Date: 11/2/2020

Reference Information

CVE: CVE-2020-5652