{ "id": "CVE-2020-13593", "sourceIdentifier": "cve@mitre.org", "published": "2020-08-31T15:15:10.493", "lastModified": "2021-07-21T11:39:23.747", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation in Texas Instruments SimpleLink SIMPLELINK-CC2640R2-SDK through 2.2.3 allows the Diffie-Hellman check during the Secure Connection pairing to be skipped if the Link Layer encryption setup is performed earlier. An attacker in radio range can achieve arbitrary read/write access to protected GATT service data, cause a denial of service, or possibly control a device's function by establishing an encrypted session with an unauthenticated Long Term Key (LTK)." }, { "lang": "es", "value": "La implementaci\u00f3n del Bluetooth Low Energy Secure Manager Protocol (SMP) en Texas Instruments SimpleLink SIMPLELINK-CC2640R2-SDK versiones hasta 2.2.3, permite omitir una comprobaci\u00f3n de Diffie-Hellman durante el emparejamiento de la Conexi\u00f3n Segura si la configuraci\u00f3n de cifrado de la capa de enlace es llevada a cabo antes. Un atacante dentro del radio de alcance puede lograr acceso arbitrario de lectura y escritura a datos de servicio protegidos por GATT, causar una denegaci\u00f3n de servicio o posiblemente controlar la funci\u00f3n de un dispositivo al establecer una sesi\u00f3n cifrada con una Long Term Key (LTK) no autenticada" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH" }, "exploitabilityScore": 2.8, "impactScore": 5.9 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P", "accessVector": "ADJACENT_NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 5.8 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 6.5, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-347" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:ti:simplelink-cc2640r2_software_development_kit:*:*:*:*:*:*:*:*", "versionEndIncluding": "2.2.3", "matchCriteriaId": "926AFD8E-FB10-4FDC-AF8B-52C4A067E342" } ] } ] } ], "references": [ { "url": "http://www.ti.com/tool/BLE-STACK", "source": "cve@mitre.org", "tags": [ "Vendor Advisory" ] }, { "url": "https://asset-group.github.io/cves.html", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://asset-group.github.io/disclosures/sweyntooth/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] } ] }