FKIE_CVE-2018-5175

Vulnerability from fkie_nvd - Published: 2018-06-11 21:29 - Updated: 2026-06-17 01:59
Severity
6.1 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
A mechanism to bypass Content Security Policy (CSP) protections on sites that have a "script-src" policy of "'strict-dynamic'". If a target website contains an HTML injection flaw an attacker could inject a reference to a copy of the "require.js" library that is part of Firefox's Developer Tools, and then use a known technique using that library to bypass the CSP restrictions on executing injected scripts. This vulnerability affects Firefox < 60.
References
security@mozilla.orghttp://www.securityfocus.com/bid/104139Third Party Advisory, VDB Entry
security@mozilla.orghttp://www.securitytracker.com/id/1040896Third Party Advisory, VDB Entry
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1432358Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.orghttps://usn.ubuntu.com/3645-1/Third Party Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2018-11/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/104139Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1040896Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1432358Issue Tracking, Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3645-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2018-11/Vendor Advisory
Impacted products
Vendor Product Version
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 17.10
canonical ubuntu_linux 18.04
mozilla firefox *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "60",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@mozilla.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
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              "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084",
              "vulnerable": true
            },
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    {
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        {
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              "versionEndExcluding": "60.0",
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            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A mechanism to bypass Content Security Policy (CSP) protections on sites that have a \"script-src\" policy of \"\u0027strict-dynamic\u0027\". If a target website contains an HTML injection flaw an attacker could inject a reference to a copy of the \"require.js\" library that is part of Firefox\u0027s Developer Tools, and then use a known technique using that library to bypass the CSP restrictions on executing injected scripts. This vulnerability affects Firefox \u003c 60."
    },
    {
      "lang": "es",
      "value": "Un mecanismo para omitir las protecciones de la Pol\u00edtica de Seguridad de Contenidos (CSP) en sitios que tienen una pol\u00edtica \"script-src\" de \"strict-dynamic\". Si un sitio web objetivo contiene una vulnerabilidad de inyecci\u00f3n HTML, el atacante podr\u00eda inyectar una referencia a una copia de la librer\u00eda \"require.js\" que forma parte de las herramientas de desarrollo de Firefox y, a continuaci\u00f3n, utilizar una t\u00e9cnica conocida que utilice dicha librer\u00eda para omitir las restricciones del CSP sobre la ejecuci\u00f3n de scripts inyectados. Esta vulnerabilidad afecta a las versiones anteriores a la 60 de Firefox."
    }
  ],
  "id": "CVE-2018-5175",
  "lastModified": "2026-06-17T01:59:46.243",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "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"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
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    "cvssMetricV30": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
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          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.0"
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        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2018-06-11T21:29:16.030",
  "references": [
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      "tags": [
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        "VDB Entry"
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    },
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      "url": "https://www.mozilla.org/security/advisories/mfsa2018-11/"
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    {
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      "tags": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
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      "tags": [
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    },
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      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2018-11/"
    }
  ],
  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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