{
  "id": "CVE-2016-4644",
  "sourceIdentifier": "product-security@apple.com",
  "published": "2019-01-11T18:29:00.453",
  "lastModified": "2019-01-17T17:55:56.863",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "In iOS before 9.3.3, tvOS before 9.2.2, and OS X El Capitan before v10.11.6 and Security Update 2016-004, a downgrade issue existed with HTTP authentication credentials saved in Keychain. This issue was addressed by storing the authentication types with the credentials."
    },
    {
      "lang": "es",
      "value": "En iOS en versiones anteriores a la 9.3.3, tvOS en versiones anteriores a la 9.2.2  y OS X El Capitan en versiones anteriores a la v10.11.6 y la actualizaci\u00f3n de seguridad (Security Update) 2016-004, exist\u00eda un problema de degradaci\u00f3n con las credenciales de autenticaci\u00f3n HTTP almacenadas en el Keychain. Este problema se abord\u00f3 almacenando los tipos de autenticaci\u00f3n con las credenciales."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apple:apple_tv:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "06DE835E-EC36-4BFA-91D6-058DABE8DB83"
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  ],
  "references": [
    {
      "url": "https://support.apple.com/HT206902",
      "source": "product-security@apple.com",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/HT206903",
      "source": "product-security@apple.com",
      "tags": [
        "Vendor Advisory"
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    },
    {
      "url": "https://support.apple.com/HT206905",
      "source": "product-security@apple.com",
      "tags": [
        "Vendor Advisory"
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  ]
}