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JpcertCVE-2020-5665

HistoryDec 14, 2020 - 3:15 a.m.

CVE-2020-5665

2020-12-1403:15:13

jpcert

web.nvd.nist.gov

cve-2020-5665

firmware

melsec

denial-of-service

vulnerability

arp packet

dos

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.4

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS

0.002

Percentile

54.9%

JSON

Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U© CPU unit firmware version 1.060 and earlier allows an attacker to cause a denial-of-service (DoS) condition on program execution and communication by sending a specially crafted ARP packet.

Affected configurations

Nvd

Vulners

Node

mitsubishielectricmelsec_iq-f_fx5u_cpu_firmwareRange≤1.060

AND

mitsubishielectricmelsec_iq-f_fx5u_cpuMatch-

VendorProductVersionCPE
mitsubishielectricmelsec_iq-f_fx5u_cpu_firmware*cpe:2.3:o:mitsubishielectric:melsec_iq-f_fx5u_cpu_firmware:*:*:*:*:*:*:*:*
mitsubishielectricmelsec_iq-f_fx5u_cpu-cpe:2.3:h:mitsubishielectric:melsec_iq-f_fx5u_cpu:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mitsubishielectric	melsec_iq-f_fx5u_cpu_firmware	*	cpe:2.3:o:mitsubishielectric:melsec_iq-f_fx5u_cpu_firmware::::::::
mitsubishielectric	melsec_iq-f_fx5u_cpu	-	cpe:2.3:h:mitsubishielectric:melsec_iq-f_fx5u_cpu:-:::::::*

CNA Affected

[
  {
    "product": "MELSEC iQ-F series FX5U(C) CPU unit",
    "vendor": "Mitsubishi Electric Corporation",
    "versions": [
      {
        "status": "affected",
        "version": "firmware version 1.060 and earlier"
      }
    ]
  }
]

References

jvn.jp/vu/JVNVU95638588/index.html

us-cert.cisa.gov/ics/advisories/icsa-20-345-01

www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf

www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf

Social References

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.4

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS

0.002

Percentile

54.9%

JSON

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