CVE-2020-15680
Vulnerability from cvelistv5
Published
2020-10-22 20:32
Modified
2024-08-04 13:22
Severity ?
Summary
If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1658881Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2020-45/Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1658881Issue Tracking, Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2020-45/Release Notes, Vendor Advisory
Impacted products
Vendor Product Version
Mozilla Firefox Version: unspecified   < 82
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-04T13:22:30.785Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://www.mozilla.org/security/advisories/mfsa2020-45/",
               },
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://bugzilla.mozilla.org/show_bug.cgi?id=1658881",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               product: "Firefox",
               vendor: "Mozilla",
               versions: [
                  {
                     lessThan: "82",
                     status: "affected",
                     version: "unspecified",
                     versionType: "custom",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82.",
            },
         ],
         problemTypes: [
            {
               descriptions: [
                  {
                     description: "Presence of external protocol handlers could be determined through image tags",
                     lang: "en",
                     type: "text",
                  },
               ],
            },
         ],
         providerMetadata: {
            dateUpdated: "2020-10-22T20:32:46",
            orgId: "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
            shortName: "mozilla",
         },
         references: [
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://www.mozilla.org/security/advisories/mfsa2020-45/",
            },
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://bugzilla.mozilla.org/show_bug.cgi?id=1658881",
            },
         ],
         x_legacyV4Record: {
            CVE_data_meta: {
               ASSIGNER: "security@mozilla.org",
               ID: "CVE-2020-15680",
               STATE: "PUBLIC",
            },
            affects: {
               vendor: {
                  vendor_data: [
                     {
                        product: {
                           product_data: [
                              {
                                 product_name: "Firefox",
                                 version: {
                                    version_data: [
                                       {
                                          version_affected: "<",
                                          version_value: "82",
                                       },
                                    ],
                                 },
                              },
                           ],
                        },
                        vendor_name: "Mozilla",
                     },
                  ],
               },
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "eng",
                     value: "If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "eng",
                           value: "Presence of external protocol handlers could be determined through image tags",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://www.mozilla.org/security/advisories/mfsa2020-45/",
                     refsource: "MISC",
                     url: "https://www.mozilla.org/security/advisories/mfsa2020-45/",
                  },
                  {
                     name: "https://bugzilla.mozilla.org/show_bug.cgi?id=1658881",
                     refsource: "MISC",
                     url: "https://bugzilla.mozilla.org/show_bug.cgi?id=1658881",
                  },
               ],
            },
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
      assignerShortName: "mozilla",
      cveId: "CVE-2020-15680",
      datePublished: "2020-10-22T20:32:46",
      dateReserved: "2020-07-10T00:00:00",
      dateUpdated: "2024-08-04T13:22:30.785Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2020-15680\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2020-10-22T21:15:13.263\",\"lastModified\":\"2024-11-21T05:06:00.210\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82.\"},{\"lang\":\"es\",\"value\":\"Si fue referenciado un manejador de protocolo externo válido en una etiqueta de imagen, el tamaño de imagen rota resultante podría distinguirse de un tamaño de imagen rota de un manejador de protocolo inexistente.&#xa0;Esto permitió que un atacante probara con éxito si se había registrado un manejador de protocolo externo.&#xa0;Esta vulnerabilidad afecta a Firefox versiones anteriores a 82\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"82.0\",\"matchCriteriaId\":\"A99DBC67-F226-4E09-B6C2-1B4346AEC802\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1658881\",\"source\":\"security@mozilla.org\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2020-45/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1658881\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2020-45/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]}]}}",
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.