{
  "id": "CVE-2021-27499",
  "sourceIdentifier": "ics-cert@hq.dhs.gov",
  "published": "2021-08-02T21:15:08.050",
  "lastModified": "2024-11-21T05:58:06.843",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5,The application layer encryption of the communication protocol between the Ypsomed mylife App and mylife Cloud uses non-random IVs, which allows man-in-the-middle attackers to tamper with messages."
    },
    {
      "lang": "es",
      "value": "Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: Todas las versiones anteriores a 1.7.2, Ypsomed mylife App: Todas las versiones anteriores a 1.7.5, El cifrado de la capa de aplicaci\u00f3n del protocolo de comunicaci\u00f3n entre Ypsomed mylife App y mylife Cloud usa IVs no aleatorios, que permite a atacantes tipo man-in-the-middle manipular los mensajes"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "ics-cert@hq.dhs.gov",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-329"
        }
      ]
    },
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-330"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ypsomed:mylife:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.7.5",
              "matchCriteriaId": "B9020455-4F66-4DF4-BB7C-C07DAE76FE2C"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ypsomed:mylife_cloud:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.7.2",
              "matchCriteriaId": "115393EA-71DF-46B9-9F87-A26C641459A1"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsma-21-196-01",
      "source": "ics-cert@hq.dhs.gov",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    },
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsma-21-196-01",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    }
  ]
}