CVE-2020-5665

Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U(C) 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.

CVSS v3 7.4 HIGH
CVSS v2.0 3.3 LOW

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.0

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

3.3^/10

CVSS v2.0 : LOW

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

Exploitability : 6.5 / Impact : 2.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://jvn.jp/vu/JVNVU95638588/index.html	Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01	Third Party Advisory US Government Resource
https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf	Vendor Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:mitsubishielectric:melsec_iq-f_fx5u_cpu_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:mitsubishielectric:melsec_iq-f_fx5u_cpu:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-12-14 03:15

Updated : 2024-02-28 18:08

NVD link : CVE-2020-5665

Mitre link : CVE-2020-5665

CVE.ORG link : CVE-2020-5665

JSON object : View

Products Affected

mitsubishielectric

melsec_iq-f_fx5u_cpu_firmware
melsec_iq-f_fx5u_cpu

CWE

NVD-CWE-noinfo

{"id": "CVE-2020-5665", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 3.3, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 2.8}]}, "published": "2020-12-14T03:15:13.653", "references": [{"url": "https://jvn.jp/vu/JVNVU95638588/index.html", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01", "tags": ["Third Party Advisory", "US Government Resource"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf", "tags": ["Vendor Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf", "tags": ["Vendor Advisory"], "source": "vultures@jpcert.or.jp"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U(C) 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."}, {"lang": "es", "value": "Una comprobaci\u00f3n o manejo inapropiado de condiciones excepcionales en la unidad CPU FX5U(C) de MELSEC iQ-F series versi\u00f3n 1.060 y anterior, permite a un atacante causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en una ejecuci\u00f3n del programa y la comunicaci\u00f3n mediante el env\u00edo de un paquete ARP especialmente dise\u00f1ado."}], "lastModified": "2021-07-21T11:39:23.747", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mitsubishielectric:melsec_iq-f_fx5u_cpu_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A8F2FC3-2AB0-495D-BD49-1BAD229D4602", "versionEndIncluding": "1.060"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mitsubishielectric:melsec_iq-f_fx5u_cpu:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DE9A97E7-29E3-4F27-9203-CF51CD90A1B4"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "vultures@jpcert.or.jp"}