CVE-2020-5686

Incorrect implementation of authentication algorithm issue in UNIVERGE SV9500 series from V1 to V7and SV8500 series from S6 to S8 allows an attacker to access the remote system maintenance feature and obtain the information by sending a specially crafted request to a specific URL.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://jvn.jp/en/jp/JVN38784555/index.html	Third Party Advisory
https://www.necplatforms.co.jp/en/press/security_adv.html	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:nec:univerge_sv9500_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:nec:univerge_sv9500:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:nec:univerge_sv8500_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:nec:univerge_sv8500:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-01-13 10:15

Updated : 2024-02-28 18:08

NVD link : CVE-2020-5686

Mitre link : CVE-2020-5686

CVE.ORG link : CVE-2020-5686

JSON object : View

Products Affected

nec

univerge_sv9500
univerge_sv8500
univerge_sv9500_firmware
univerge_sv8500_firmware

CWE

CWE-287

Improper Authentication

{"id": "CVE-2020-5686", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-01-13T10:15:15.097", "references": [{"url": "https://jvn.jp/en/jp/JVN38784555/index.html", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.necplatforms.co.jp/en/press/security_adv.html", "tags": ["Vendor Advisory"], "source": "vultures@jpcert.or.jp"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "Incorrect implementation of authentication algorithm issue in UNIVERGE SV9500 series from V1 to V7and SV8500 series from S6 to S8 allows an attacker to access the remote system maintenance feature and obtain the information by sending a specially crafted request to a specific URL."}, {"lang": "es", "value": "Una implementaci\u00f3n incorrecta del problema del algoritmo de autenticaci\u00f3n en la serie UNIVERGE SV9500 desde versiones V1 hasta V7 y la serie SV8500 desde versiones S6 hasta S8, permite a un atacante acceder a la funcionalidad de mantenimiento del sistema remoto y obtener la informaci\u00f3n mediante el env\u00edo de una petici\u00f3n especialmente dise\u00f1ada para una URL espec\u00edfica."}], "lastModified": "2021-01-21T18:08:00.803", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:nec:univerge_sv9500_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "19883A23-C24E-4087-84FF-F888183DAC70", "versionEndIncluding": "v7", "versionStartIncluding": "v1"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:nec:univerge_sv9500:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "0B741705-682F-4B46-879F-3F88116748CD"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:nec:univerge_sv8500_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8DE68839-328E-4C02-8DB4-558AFAE82685", "versionEndIncluding": "s8", "versionStartIncluding": "s6"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:nec:univerge_sv8500:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "C856762B-81AA-4718-A8CF-A42E865EA751"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "vultures@jpcert.or.jp"}