FKIE_CVE-2019-14899

Vulnerability from fkie_nvd - Published: 2019-12-11 15:15 - Updated: 2024-11-21 04:27
Summary
A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel.
References
secalert@redhat.comhttp://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
secalert@redhat.comhttp://seclists.org/fulldisclosure/2020/Jul/23Mailing List, Third Party Advisory
secalert@redhat.comhttp://seclists.org/fulldisclosure/2020/Jul/24Mailing List, Third Party Advisory
secalert@redhat.comhttp://seclists.org/fulldisclosure/2020/Jul/25Mailing List, Third Party Advisory
secalert@redhat.comhttp://seclists.org/fulldisclosure/2020/Nov/20Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2020/08/13/2Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2020/10/07/3Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2021/07/05/1Mailing List, Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14899Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://openvpn.net/security-advisory/no-flaws-found-in-openvpn-software/Third Party Advisory
secalert@redhat.comhttps://support.apple.com/kb/HT211288Third Party Advisory
secalert@redhat.comhttps://support.apple.com/kb/HT211289Third Party Advisory
secalert@redhat.comhttps://support.apple.com/kb/HT211290Third Party Advisory
secalert@redhat.comhttps://support.apple.com/kb/HT211850Third Party Advisory
secalert@redhat.comhttps://support.apple.com/kb/HT211931Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Jul/23Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Jul/24Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Jul/25Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Nov/20Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2020/08/13/2Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2020/10/07/3Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/07/05/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14899Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://openvpn.net/security-advisory/no-flaws-found-in-openvpn-software/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211288Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211289Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211290Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211850Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211931Third Party Advisory
Impacted products

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  "configurations": [
    {
      "nodes": [
        {
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            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "3B2AEFCC-A2F6-45A6-A2EF-24F7906E44E2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:openbsd:openbsd:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "41D2806B-D7B2-4982-B759-8D60866A36DB",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
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    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "87D68071-5235-4B50-90F0-B55B0C668840",
              "versionEndExcluding": "13.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0639A5DE-4A59-4F10-A0E7-F6B933E44D47",
              "versionEndExcluding": "13.6",
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              "criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FD0ACF42-C643-4DED-ADF7-4FA29B7578F7",
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              "criteria": "cpe:2.3:o:apple:macos:11.0:*:*:*:*:*:*:*",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 una vulnerabilidad en Linux, FreeBSD, OpenBSD, MacOS, iOS y Android, que permite a un punto de acceso malicioso, o un usuario adyacente, determinar si un usuario conectado est\u00e1 utilizando una VPN, hacer inferencias positivas sobre los sitios web que est\u00e1 visitando, y determinar la secuencia correcta y los n\u00fameros de reconocimiento en uso, permitiendo al actor malo inyectar datos en la secuencia TCP. Esto proporciona todo lo necesario para que un atacante secuestre conexiones activas dentro del t\u00fanel VPN."
    }
  ],
  "id": "CVE-2019-14899",
  "lastModified": "2024-11-21T04:27:38.590",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.9,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:A/AC:M/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 4.4,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.0"
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        "source": "secalert@redhat.com",
        "type": "Secondary"
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          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
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        "source": "nvd@nist.gov",
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  },
  "published": "2019-12-11T15:15:14.263",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://seclists.org/fulldisclosure/2020/Dec/32"
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    {
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    },
    {
      "source": "secalert@redhat.com",
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-300"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Secondary"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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