CVE-2021-20647

Cross-site request forgery (CSRF) vulnerability in ELECOM WRC-300FEBK-S allows remote attackers to hijack the authentication of administrators and execute an arbitrary request via unspecified vector. As a result, the device settings may be altered and/or telnet daemon may be started.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://jvn.jp/en/jp/JVN47580234/index.html	Third Party Advisory
https://www.elecom.co.jp/news/security/20210126-01/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:elecom:wrc-300febk-s_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:elecom:wrc-300febk-s:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-02-12 07:15

Updated : 2024-02-28 18:08

NVD link : CVE-2021-20647

Mitre link : CVE-2021-20647

CVE.ORG link : CVE-2021-20647

JSON object : View

Products Affected

elecom

wrc-300febk-s_firmware
wrc-300febk-s

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

{"id": "CVE-2021-20647", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2021-02-12T07:15:15.263", "references": [{"url": "https://jvn.jp/en/jp/JVN47580234/index.html", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.elecom.co.jp/news/security/20210126-01/", "tags": ["Vendor Advisory"], "source": "vultures@jpcert.or.jp"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-352"}]}], "descriptions": [{"lang": "en", "value": "Cross-site request forgery (CSRF) vulnerability in ELECOM WRC-300FEBK-S allows remote attackers to hijack the authentication of administrators and execute an arbitrary request via unspecified vector. As a result, the device settings may be altered and/or telnet daemon may be started."}, {"lang": "es", "value": "Una vulnerabilidad de tipo cross-site request forgery (CSRF) en ELECOM WRC-300FEBK-S, permite a atacantes remotos secuestrar la autenticaci\u00f3n de los administradores y ejecutar una petici\u00f3n arbitraria por medio de un vector no especificado. Como resultado, la configuraci\u00f3n del dispositivo puede ser alterada y/o el demonio telnet puede ser iniciado"}], "lastModified": "2021-02-15T01:32:12.643", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:elecom:wrc-300febk-s_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BBD41BED-6FB3-4F62-BFCC-C73927375E9E"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:elecom:wrc-300febk-s:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "77EFC8AE-44A0-4ED5-AC46-13CA56313EEB"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "vultures@jpcert.or.jp"}