FKIE_CVE-2017-7814

Vulnerability from fkie_nvd - Published: 2018-06-11 21:29 - Updated: 2025-11-25 17:50
Severity ?
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
File downloads encoded with "blob:" and "data:" URL elements bypassed normal file download checks though the Phishing and Malware Protection feature and its block lists of suspicious sites and files. This would allow malicious sites to lure users into downloading executables that would otherwise be detected as suspicious. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
References
security@mozilla.orghttp://www.securityfocus.com/bid/101059Third Party Advisory, VDB Entry
security@mozilla.orghttp://www.securitytracker.com/id/1039465Third Party Advisory, VDB Entry
security@mozilla.orghttps://access.redhat.com/errata/RHSA-2017:2831Third Party Advisory
security@mozilla.orghttps://access.redhat.com/errata/RHSA-2017:2885Third Party Advisory
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1376036Issue Tracking, Patch, Third Party Advisory
security@mozilla.orghttps://lists.debian.org/debian-lts-announce/2017/11/msg00000.htmlThird Party Advisory
security@mozilla.orghttps://security.gentoo.org/glsa/201803-14Third Party Advisory
security@mozilla.orghttps://www.debian.org/security/2017/dsa-3987Third Party Advisory
security@mozilla.orghttps://www.debian.org/security/2017/dsa-4014Third Party Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2017-22/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2017-23/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/101059Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1039465Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:2831Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:2885Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1376036Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2017/11/msg00000.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201803-14Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2017/dsa-3987Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2017/dsa-4014Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2017-22/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2017-23/Vendor Advisory
Impacted products
Vendor Product Version
redhat enterprise_linux_desktop 6.0
redhat enterprise_linux_desktop 7.0
redhat enterprise_linux_server 6.0
redhat enterprise_linux_server 7.0
redhat enterprise_linux_server_aus 7.4
redhat enterprise_linux_server_eus 7.4
redhat enterprise_linux_server_eus 7.5
redhat enterprise_linux_workstation 6.0
redhat enterprise_linux_workstation 7.0
mozilla firefox *
mozilla firefox *
mozilla thunderbird *
debian debian_linux 7.0
debian debian_linux 8.0
debian debian_linux 9.0
To clipboard 

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  "cveTags": [],
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      "lang": "en",
      "value": "File downloads encoded with \"blob:\" and \"data:\" URL elements bypassed normal file download checks though the Phishing and Malware Protection feature and its block lists of suspicious sites and files. This would allow malicious sites to lure users into downloading executables that would otherwise be detected as suspicious. This vulnerability affects Firefox \u003c 56, Firefox ESR \u003c 52.4, and Thunderbird \u003c 52.4."
    },
    {
      "lang": "es",
      "value": "Las descargas de archivos codificados con elementos URL \"blob:\" y \"data:\" omit\u00edan las comprobaciones de descarga de archivos normales a pesar de la caracter\u00edstica Phishing and Malware Protection y sus listas de bloqueo de p\u00e1ginas y archivos sospechosos. Esto permitiria a los sitios maliciosos enga\u00f1ar a los usuarios para que descarguen ejecutables que, de otra manera, se habr\u00edan detectado como sospechosos. Esta vulnerabilidad afecta a las versiones anteriores a la 56 de Firefox, las versiones anteriores a la 52.4 de Firefox ESR y las versiones anteriores a la 52.4 de Thunderbird."
    }
  ],
  "id": "CVE-2017-7814",
  "lastModified": "2025-11-25T17:50:16.803",
  "metrics": {
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        "baseSeverity": "MEDIUM",
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          "accessVector": "NETWORK",
          "authentication": "NONE",
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          "baseScore": 6.8,
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
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          "scope": "UNCHANGED",
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  "published": "2018-06-11T21:29:10.547",
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-20"
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      "source": "nvd@nist.gov",
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  ]
}


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Sightings

Author Source Type Date

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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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