CVE-2020-26976
Vulnerability from cvelistv5
Published
2021-01-07 13:52
Modified
2024-08-04 16:03
Severity ?
EPSS score ?
0.46% (0.75338)
Summary
When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1674343Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.orghttps://lists.debian.org/debian-lts-announce/2021/02/msg00001.htmlMailing List, Third Party Advisory
security@mozilla.orghttps://lists.debian.org/debian-lts-announce/2021/02/msg00002.htmlMailing List, Third Party Advisory
security@mozilla.orghttps://security.gentoo.org/glsa/202102-02Third Party Advisory
security@mozilla.orghttps://www.debian.org/security/2021/dsa-4840Third Party Advisory
security@mozilla.orghttps://www.debian.org/security/2021/dsa-4842Third Party Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2020-54/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1674343Issue Tracking, Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/02/msg00001.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/02/msg00002.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202102-02Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4840Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4842Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2020-54/Vendor Advisory
Impacted products
Vendor Product Version
Mozilla Firefox Version: unspecified   < 84
Create a notification for this product.
Show details on NVD website


{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-04T16:03:23.169Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://www.mozilla.org/security/advisories/mfsa2020-54/",
               },
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://bugzilla.mozilla.org/show_bug.cgi?id=1674343",
               },
               {
                  name: "DSA-4840",
                  tags: [
                     "vendor-advisory",
                     "x_refsource_DEBIAN",
                     "x_transferred",
                  ],
                  url: "https://www.debian.org/security/2021/dsa-4840",
               },
               {
                  name: "GLSA-202102-02",
                  tags: [
                     "vendor-advisory",
                     "x_refsource_GENTOO",
                     "x_transferred",
                  ],
                  url: "https://security.gentoo.org/glsa/202102-02",
               },
               {
                  name: "DSA-4842",
                  tags: [
                     "vendor-advisory",
                     "x_refsource_DEBIAN",
                     "x_transferred",
                  ],
                  url: "https://www.debian.org/security/2021/dsa-4842",
               },
               {
                  name: "[debian-lts-announce] 20210202 [SECURITY] [DLA 2541-1] thunderbird security update",
                  tags: [
                     "mailing-list",
                     "x_refsource_MLIST",
                     "x_transferred",
                  ],
                  url: "https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html",
               },
               {
                  name: "[debian-lts-announce] 20210202 [SECURITY] [DLA 2539-1] firefox-esr security update",
                  tags: [
                     "mailing-list",
                     "x_refsource_MLIST",
                     "x_transferred",
                  ],
                  url: "https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               product: "Firefox",
               vendor: "Mozilla",
               versions: [
                  {
                     lessThan: "84",
                     status: "affected",
                     version: "unspecified",
                     versionType: "custom",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.",
            },
         ],
         problemTypes: [
            {
               descriptions: [
                  {
                     description: "HTTPS pages could have been intercepted by a registered service worker when they should not have been",
                     lang: "en",
                     type: "text",
                  },
               ],
            },
         ],
         providerMetadata: {
            dateUpdated: "2021-02-02T14:06:21",
            orgId: "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
            shortName: "mozilla",
         },
         references: [
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://www.mozilla.org/security/advisories/mfsa2020-54/",
            },
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://bugzilla.mozilla.org/show_bug.cgi?id=1674343",
            },
            {
               name: "DSA-4840",
               tags: [
                  "vendor-advisory",
                  "x_refsource_DEBIAN",
               ],
               url: "https://www.debian.org/security/2021/dsa-4840",
            },
            {
               name: "GLSA-202102-02",
               tags: [
                  "vendor-advisory",
                  "x_refsource_GENTOO",
               ],
               url: "https://security.gentoo.org/glsa/202102-02",
            },
            {
               name: "DSA-4842",
               tags: [
                  "vendor-advisory",
                  "x_refsource_DEBIAN",
               ],
               url: "https://www.debian.org/security/2021/dsa-4842",
            },
            {
               name: "[debian-lts-announce] 20210202 [SECURITY] [DLA 2541-1] thunderbird security update",
               tags: [
                  "mailing-list",
                  "x_refsource_MLIST",
               ],
               url: "https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html",
            },
            {
               name: "[debian-lts-announce] 20210202 [SECURITY] [DLA 2539-1] firefox-esr security update",
               tags: [
                  "mailing-list",
                  "x_refsource_MLIST",
               ],
               url: "https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html",
            },
         ],
         x_legacyV4Record: {
            CVE_data_meta: {
               ASSIGNER: "security@mozilla.org",
               ID: "CVE-2020-26976",
               STATE: "PUBLIC",
            },
            affects: {
               vendor: {
                  vendor_data: [
                     {
                        product: {
                           product_data: [
                              {
                                 product_name: "Firefox",
                                 version: {
                                    version_data: [
                                       {
                                          version_affected: "<",
                                          version_value: "84",
                                       },
                                    ],
                                 },
                              },
                           ],
                        },
                        vendor_name: "Mozilla",
                     },
                  ],
               },
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "eng",
                     value: "When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "eng",
                           value: "HTTPS pages could have been intercepted by a registered service worker when they should not have been",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://www.mozilla.org/security/advisories/mfsa2020-54/",
                     refsource: "MISC",
                     url: "https://www.mozilla.org/security/advisories/mfsa2020-54/",
                  },
                  {
                     name: "https://bugzilla.mozilla.org/show_bug.cgi?id=1674343",
                     refsource: "MISC",
                     url: "https://bugzilla.mozilla.org/show_bug.cgi?id=1674343",
                  },
                  {
                     name: "DSA-4840",
                     refsource: "DEBIAN",
                     url: "https://www.debian.org/security/2021/dsa-4840",
                  },
                  {
                     name: "GLSA-202102-02",
                     refsource: "GENTOO",
                     url: "https://security.gentoo.org/glsa/202102-02",
                  },
                  {
                     name: "DSA-4842",
                     refsource: "DEBIAN",
                     url: "https://www.debian.org/security/2021/dsa-4842",
                  },
                  {
                     name: "[debian-lts-announce] 20210202 [SECURITY] [DLA 2541-1] thunderbird security update",
                     refsource: "MLIST",
                     url: "https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html",
                  },
                  {
                     name: "[debian-lts-announce] 20210202 [SECURITY] [DLA 2539-1] firefox-esr security update",
                     refsource: "MLIST",
                     url: "https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html",
                  },
               ],
            },
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
      assignerShortName: "mozilla",
      cveId: "CVE-2020-26976",
      datePublished: "2021-01-07T13:52:09",
      dateReserved: "2020-10-12T00:00:00",
      dateUpdated: "2024-08-04T16:03:23.169Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2020-26976\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2021-01-07T14:15:12.173\",\"lastModified\":\"2024-11-21T05:20:36.757\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.\"},{\"lang\":\"es\",\"value\":\"Cuando una página HTTPS estaba insertada en una página HTTP, y había un trabajador de servicio registrado para la primera, el trabajador de servicio podría haber interceptado la petición de la página segura a pesar de que el iframe no estaba en un contexto seguro debido al framing (no seguro).&#xa0;Esta vulnerabilidad afecta a Firefox versiones anteriores a 84\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:P/A:N\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"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\":\"84.0\",\"matchCriteriaId\":\"85154F06-6654-493F-8630-38637ED7D8D0\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1674343\",\"source\":\"security@mozilla.org\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html\",\"source\":\"security@mozilla.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html\",\"source\":\"security@mozilla.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202102-02\",\"source\":\"security@mozilla.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4840\",\"source\":\"security@mozilla.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4842\",\"source\":\"security@mozilla.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2020-54/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1674343\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202102-02\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4840\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4842\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2020-54/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"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.


Loading…

Loading…

Loading…

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.