CVE-2020-16630

{"id": "CVE-2020-16630", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:M/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 5.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.6}]}, "published": "2021-09-20T20:15:11.337", "references": [{"url": "http://software-dl.ti.com/simplelink/esd/simplelink_cc13x2_26x2_sdk/3.20.00.68/exports/changelog.html", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.usenix.org/system/files/sec20-zhang-yue.pdf", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "TI\u2019s BLE stack caches and reuses the LTK\u2019s property for a bonded mobile. A LTK can be an unauthenticated-and-no-MITM-protection key created by Just Works or an authenticated-and-MITM-protection key created by Passkey Entry, Numeric Comparison or OOB. Assume that a victim mobile uses secure pairing to pair with a victim BLE device based on TI chips and generate an authenticated-and-MITM-protection LTK. If a fake mobile with the victim mobile\u2019s MAC address uses Just Works and pairs with the victim device, the generated LTK still has the property of authenticated-and-MITM-protection. Therefore, the fake mobile can access attributes with the authenticated read/write permission."}, {"lang": "es", "value": "La pila BLE de TI almacena en cach\u00e9 y reusa la propiedad del LTK para un m\u00f3vil vinculado. Una LTK puede ser una clave no autenticada y sin protecci\u00f3n MITM creada por Just Works o una clave autenticada y con protecci\u00f3n MITM creada por Passkey Entry, Numeric Comparison u OOB. Supongamos que un m\u00f3vil v\u00edctima usa el emparejamiento seguro para emparejarse con un dispositivo BLE v\u00edctima basado en chips TI y genera una LTK autenticada y de protecci\u00f3n MITM. Si un m\u00f3vil falso con la direcci\u00f3n MAC del m\u00f3vil v\u00edctima usa Just Works y se empareja con el dispositivo v\u00edctima, el LTK generado sigue teniendo la propiedad de autenticaci\u00f3n y protecci\u00f3n MITM. Por lo tanto, el m\u00f3vil falso puede acceder a los atributos con el permiso de lectura/escritura autenticado"}], "lastModified": "2021-10-07T13:13:16.507", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:ti:15.4-stack:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F2973A2C-67E6-4064-A2A9-E4122E201DDF"}, {"criteria": "cpe:2.3:a:ti:ble5-stack:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0E161F37-86D3-4558-91B4-086528A351AA"}, {"criteria": "cpe:2.3:a:ti:dynamic_multi-protocal_manager:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F9951BB2-E930-4C92-B673-501591679002"}, {"criteria": "cpe:2.3:a:ti:easylink:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "74934E63-1140-4F9B-BC05-3739E62B9DE4"}, {"criteria": "cpe:2.3:a:ti:openthread:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B3586ABB-3E4A-4BAD-B9F4-5EB6775AFEF3"}, {"criteria": "cpe:2.3:a:ti:z-stack:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BA516494-4D9A-4275-A7BA-A82699625477"}, {"criteria": "cpe:2.3:o:ti:real-time_operating_system:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E289611E-871B-433E-BF10-CDABF650AAC9"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}