CVE-2021-20857 - Vulnerability Details - OpenCVE

Description

Cross-site scripting vulnerability in ELECOM LAN router WRC-2533GHBK-I firmware v1.20 and prior allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

Published: 2021-12-01

Score: 5.4 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

ELECOM CO.,LTD.

ELECOM LAN router

affected

Version	Status	Constraints
`WRC-2533GHBK-I firmware v1.20 and prior`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:elecom:wrc-2533ghbk-i_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:elecom:wrc-2533ghbk-i:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-8266	Cross-site scripting vulnerability in ELECOM LAN router WRC-2533GHBK-I firmware v1.20 and prior allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication Single

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00209.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://jvn.jp/en/jp/JVN88993473/index.html
https://www.elecom.co.jp/news/security/20211130-01/

History

No history.

Subscriptions

Elecom Wrc-2533ghbk-i Wrc-2533ghbk-i Firmware

MITRE

Status: PUBLISHED

Assigner: jpcert

Published: 2021-12-01T02:15:49.000Z

Updated: 2024-08-03T17:53:22.695Z

Reserved: 2020-12-17T00:00:00.000Z

Link: CVE-2021-20857

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-12-01T03:15:06.940

Modified: 2024-11-21T05:47:17.400

Link: CVE-2021-20857

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

{"containers": {"cna": {"affected": [{"product": "ELECOM LAN router", "vendor": "ELECOM CO.,LTD.", "versions": [{"status": "affected", "version": "WRC-2533GHBK-I firmware v1.20 and prior"}]}], "descriptions": [{"lang": "en", "value": "Cross-site scripting vulnerability in ELECOM LAN router WRC-2533GHBK-I firmware v1.20 and prior allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors."}], "problemTypes": [{"descriptions": [{"description": "Cross-site scripting", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-12-01T02:15:49.000Z", "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "shortName": "jpcert"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.elecom.co.jp/news/security/20211130-01/"}, {"tags": ["x_refsource_MISC"], "url": "https://jvn.jp/en/jp/JVN88993473/index.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "vultures@jpcert.or.jp", "ID": "CVE-2021-20857", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "ELECOM LAN router", "version": {"version_data": [{"version_value": "WRC-2533GHBK-I firmware v1.20 and prior"}]}}]}, "vendor_name": "ELECOM CO.,LTD."}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Cross-site scripting vulnerability in ELECOM LAN router WRC-2533GHBK-I firmware v1.20 and prior allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Cross-site scripting"}]}]}, "references": {"reference_data": [{"name": "https://www.elecom.co.jp/news/security/20211130-01/", "refsource": "MISC", "url": "https://www.elecom.co.jp/news/security/20211130-01/"}, {"name": "https://jvn.jp/en/jp/JVN88993473/index.html", "refsource": "MISC", "url": "https://jvn.jp/en/jp/JVN88993473/index.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:53:22.695Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.elecom.co.jp/news/security/20211130-01/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://jvn.jp/en/jp/JVN88993473/index.html"}]}]}, "cveMetadata": {"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "assignerShortName": "jpcert", "cveId": "CVE-2021-20857", "datePublished": "2021-12-01T02:15:49.000Z", "dateReserved": "2020-12-17T00:00:00.000Z", "dateUpdated": "2024-08-03T17:53:22.695Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:elecom:wrc-2533ghbk-i_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "BA6BC27D-D195-4E27-9C91-1B530F40B31F", "versionEndIncluding": "1.20", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:elecom:wrc-2533ghbk-i:-:*:*:*:*:*:*:*", "matchCriteriaId": "DDD11C2A-1EC2-420D-B2AE-FEB67E9866FF", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "Cross-site scripting vulnerability in ELECOM LAN router WRC-2533GHBK-I firmware v1.20 and prior allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors."}, {"lang": "es", "value": "Una vulnerabilidad de tipo cross-site scripting en el router ELECOM LAN firmware WRC-2533GHBK-I versiones v1.20 y anteriores, permite a un atacante remoto autenticado inyectar un script arbitrario por medio de vectores no especificados"}], "id": "CVE-2021-20857", "lastModified": "2024-11-21T05:47:17.400", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-01T03:15:06.940", "references": [{"source": "vultures@jpcert.or.jp", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/jp/JVN88993473/index.html"}, {"source": "vultures@jpcert.or.jp", "tags": ["Vendor Advisory"], "url": "https://www.elecom.co.jp/news/security/20211130-01/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/jp/JVN88993473/index.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.elecom.co.jp/news/security/20211130-01/"}], "sourceIdentifier": "vultures@jpcert.or.jp", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}