CVE-2021-20151

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{"affected": [{"affectedData": [{"product": "Trendnet AC2600 TEW-827DRU", "vendor": "n/a", "versions": [{"status": "affected", "version": "2.08B01"}]}], "source": "vulnreport@tenable.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:trendnet:tew-827dru_firmware:2.08b01:*:*:*:*:*:*:*", "matchCriteriaId": "9C008C1E-18D3-4A0C-97A1-89009310C55B", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:trendnet:tew-827dru:2.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6A79A7-46A7-446F-B512-4C75B5C214CE", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Trendnet AC2600 TEW-827DRU version 2.08B01 contains a flaw in the session management for the device. The router's management software manages web sessions based on IP address rather than verifying client cookies/session tokens/etc. This allows an attacker (whether from a different computer, different web browser on the same machine, etc.) to take over an existing session. This does require the attacker to be able to spoof or take over original IP address of the original user's session."}, {"lang": "es", "value": "Trendnet AC2600 TEW-827DRU versi\u00f3n 2.08B01, contiene un fallo en la administraci\u00f3n de sesiones del dispositivo. El software de administraci\u00f3n del router administra las sesiones web bas\u00e1ndose en la direcci\u00f3n IP en lugar de verificar las cookies/tokens de sesi\u00f3n del cliente/etc. Esto permite a un atacante (ya sea desde un ordenador diferente, un navegador web distinto en la misma m\u00e1quina, etc.) hacerse con una sesi\u00f3n existente. Esto requiere que el atacante sea capaz de falsificar o tomar la direcci\u00f3n IP original de la sesi\u00f3n del usuario original.\n"}], "id": "CVE-2021-20151", "lastModified": "2026-06-17T03:33:21.557", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-30T22:15:08.670", "references": [{"source": "vulnreport@tenable.com", "tags": ["Third Party Advisory"], "url": "https://www.tenable.com/security/research/tra-2021-54"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.tenable.com/security/research/tra-2021-54"}], "sourceIdentifier": "vulnreport@tenable.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-384"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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