FKIE_CVE-2020-13593

Vulnerability from fkie_nvd - Published: 2020-08-31 15:15 - Updated: 2024-11-21 05:01
Severity ?
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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).
References
cve@mitre.orghttp://www.ti.com/tool/BLE-STACKVendor Advisory
cve@mitre.orghttps://asset-group.github.io/cves.htmlThird Party Advisory
cve@mitre.orghttps://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.ti.com/tool/BLE-STACKVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://asset-group.github.io/cves.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
Impacted products
Vendor Product Version
ti simplelink-cc2640r2_software_development_kit *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ti:simplelink-cc2640r2_software_development_kit:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "926AFD8E-FB10-4FDC-AF8B-52C4A067E342",
              "versionEndIncluding": "2.2.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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\u0027s 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"
    }
  ],
  "id": "CVE-2020-13593",
  "lastModified": "2024-11-21T05:01:34.473",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 6.5,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-08-31T15:15:10.493",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.ti.com/tool/BLE-STACK"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party 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": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.ti.com/tool/BLE-STACK"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://asset-group.github.io/cves.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://asset-group.github.io/disclosures/sweyntooth/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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