FKIE_CVE-2020-15658

Vulnerability from fkie_nvd - Published: 2020-08-10 18:15 - Updated: 2024-11-21 05:05
Summary
The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
Impacted products

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog. This vulnerability affects Firefox ESR \u003c 78.1, Firefox \u003c 79, and Thunderbird \u003c 78.1."
    },
    {
      "lang": "es",
      "value": "El c\u00f3digo para descargar archivos no toma cuidado apropiadamente de los caracteres especiales, lo que conllevaba a que un atacante sea capaz de cortar el archivo que terminaba en una posici\u00f3n anterior, conllevando a que sea descargado un tipo de archivo diferente al mostrado en el cuadro de di\u00e1logo. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 78.1, Firefox versiones anteriores a 79 y Thunderbird versiones anteriores a 78.1"
    }
  ],
  "id": "CVE-2020-15658",
  "lastModified": "2024-11-21T05:05:57.647",
  "metrics": {
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        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
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        "impactScore": 2.9,
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        "obtainOtherPrivilege": false,
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          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
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          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "version": "3.1"
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        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2020-08-10T18:15:12.653",
  "references": [
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      "source": "security@mozilla.org",
      "tags": [
        "Third Party Advisory"
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html"
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-754"
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      "source": "nvd@nist.gov",
      "type": "Primary"
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  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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