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CVE-2016-5284 (GCVE-0-2016-5284)

Vulnerability from cvelistv5 – Published: 2016-09-22 22:00 – Updated: 2024-08-06 00:53
VLAI
Summary
Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 rely on unintended expiration dates for Preloaded Public Key Pinning, which allows man-in-the-middle attackers to spoof add-on updates by leveraging possession of an X.509 server certificate for addons.mozilla.org signed by an arbitrary built-in Certification Authority.
Severity
7.4 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
CWE
  • n/a
Assigner
References
Date Public
2016-09-20 00:00
Show details on NVD website
To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2016-5284\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2016-09-22T22:59:18.973\",\"lastModified\":\"2026-05-06T22:30:45.220\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird \u003c 45.4 rely on unintended expiration dates for Preloaded Public Key Pinning, which allows man-in-the-middle attackers to spoof add-on updates by leveraging possession of an X.509 server certificate for addons.mozilla.org signed by an arbitrary built-in Certification Authority.\"},{\"lang\":\"es\",\"value\":\"Mozilla Firefox en versiones anteriores a la 49.0, Firefox ESR en versiones 45.x anteriores a la 45.4 y Thunderbird en versiones anteriores a la 45.4 conf\u00edan en fechas de expiraci\u00f3n err\u00f3neas para Preloaded Public Key Pinning, lo que permite a los atacantes Man-in-the-Middle (MitM) suplantar las actualizaciones de los add-ons aprovechando la posesi\u00f3n de un certificado de servidor X.509 para addons.mozilla.org firmado por una autoridad certificadora integrada arbitraria.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N\",\"baseScore\":7.4,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":4.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:N/A:N\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"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\":\"CWE-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"48.0.2\",\"matchCriteriaId\":\"C56407AD-F303-4E6E-A64E-4AFA23BFB739\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:45.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5000794D-2129-49A0-A88D-84C7558B2AD7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:45.0.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AB24CED1-AAEB-41E8-9C02-71E19EDC0086\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:45.0.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F845C30-6A43-4BBE-85FA-E5698B5327DD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:45.1.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1E084D09-97BE-43E1-94D1-05206E513B99\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:45.2.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"915E92FE-8049-4EA5-95B8-F3EA25F78546\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:45.3.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CA9E7A47-5E77-4736-920A-93283E30DC7C\"}]}]}],\"references\":[{\"url\":\"http://rhn.redhat.com/errata/RHSA-2016-1912.html\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://seclists.org/dailydave/2016/q3/51\",\"source\":\"security@mozilla.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.debian.org/security/2016/dsa-3674\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://www.mozilla.org/security/announce/2016/mfsa2016-85.html\",\"source\":\"security@mozilla.org\",\"tags\":[\"Release Notes\"]},{\"url\":\"http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://www.securityfocus.com/bid/93049\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://www.securitytracker.com/id/1036852\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://blog.mozilla.org/security/2016/09/16/update-on-add-on-pinning-vulnerability/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1303127\",\"source\":\"security@mozilla.org\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://hackernoon.com/tor-browser-exposed-anti-privacy-implantation-at-mass-scale-bd68e9eb1e95\",\"source\":\"security@mozilla.org\",\"tags\":[\"Technical Description\"]},{\"url\":\"https://security.gentoo.org/glsa/201701-15\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2016-86/\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2016-88/\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2016-1912.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://seclists.org/dailydave/2016/q3/51\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.debian.org/security/2016/dsa-3674\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.mozilla.org/security/announce/2016/mfsa2016-85.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]},{\"url\":\"http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securityfocus.com/bid/93049\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securitytracker.com/id/1036852\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://blog.mozilla.org/security/2016/09/16/update-on-add-on-pinning-vulnerability/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1303127\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://hackernoon.com/tor-browser-exposed-anti-privacy-implantation-at-mass-scale-bd68e9eb1e95\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Technical Description\"]},{\"url\":\"https://security.gentoo.org/glsa/201701-15\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2016-86/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2016-88/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T14:29:56+00:00",
      "cve": "CVE-2016-5284",
      "id": "CVE-2016-5284",
      "initial_release_date": "2016-09-20T00:00:00+00:00",
      "product_status:fixed": "203",
      "product_status:known_not_affected": "5",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Mozilla: Add-on update site certificate pin expiration (MFSA 2016-85, MFSA 2016-86)",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-5284.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-02T08:53:49Z",
      "cve": "CVE-2016-5284",
      "id": "CVE-2016-5284",
      "initial_release_date": "2023-02-15T05:01:05Z",
      "product_status:known_affected": "5",
      "product_status:recommended": "328",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-5284",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-5284.json",
      "version": "22"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.