CVE-2020-10924

{"id": "CVE-2020-10924", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 8.3, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2020-07-28T18:15:13.677", "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-20-704/", "tags": ["Third Party Advisory", "VDB Entry"], "source": "zdi-disclosures@trendmicro.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "zdi-disclosures@trendmicro.com", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9643."}, {"lang": "es", "value": "Esta vulnerabilidad permite a atacantes adyacentes a la red omitir la autenticaci\u00f3n en las instalaciones afectadas de los enrutadores NETGEAR R6700 versi\u00f3n V1.0.4.84_10.0.58. Aunque es requerida una autenticaci\u00f3n para aprovechar esta vulnerabilidad, el mecanismo de autenticaci\u00f3n existente puede ser omitido. El fallo espec\u00edfico se presenta dentro del servicio UPnP, que escucha en el puerto TCP 5000 por defecto. El problema resulta de una falta de comprobaci\u00f3n apropiada de la longitud de los datos suministrados por el usuario antes de copiarlos en un b\u00fafer en la regi\u00f3n stack de la memoria de longitud fija. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto de root. Fue ZDI-CAN-9643"}], "lastModified": "2020-07-29T18:29:48.677", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netgear:r6700_firmware:1.0.4.84_10.0.58:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "617F5FF8-E0B6-4E1A-B568-911DC0A91297"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netgear:r6700:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "21B27F11-4262-4CE1-8107-B365A7C152F2"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com"}