CVE-2016-5284

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "C56407AD-F303-4E6E-A64E-4AFA23BFB739", "versionEndIncluding": "48.0.2", "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", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"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."}], "id": "CVE-2016-5284", "lastModified": "2026-06-17T00:49:07.083", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-09-22T22:59:18.973", "references": [{"source": "security@mozilla.org", "url": "http://rhn.redhat.com/errata/RHSA-2016-1912.html"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "http://seclists.org/dailydave/2016/q3/51"}, {"source": "security@mozilla.org", "url": "http://www.debian.org/security/2016/dsa-3674"}, {"source": "security@mozilla.org", "tags": ["Release Notes"], "url": "http://www.mozilla.org/security/announce/2016/mfsa2016-85.html"}, {"source": "security@mozilla.org", "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", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://blog.mozilla.org/security/2016/09/16/update-on-add-on-pinning-vulnerability/"}, {"source": "security@mozilla.org", "tags": ["Issue Tracking", "Third Party Advisory", "VDB Entry"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1303127"}, {"source": "security@mozilla.org", "tags": ["Technical Description"], "url": "https://hackernoon.com/tor-browser-exposed-anti-privacy-implantation-at-mass-scale-bd68e9eb1e95"}, {"source": "security@mozilla.org", "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": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2016-1912.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://seclists.org/dailydave/2016/q3/51"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2016/dsa-3674"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "http://www.mozilla.org/security/announce/2016/mfsa2016-85.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "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", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://blog.mozilla.org/security/2016/09/16/update-on-add-on-pinning-vulnerability/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory", "VDB Entry"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1303127"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Technical Description"], "url": "https://hackernoon.com/tor-browser-exposed-anti-privacy-implantation-at-mass-scale-bd68e9eb1e95"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "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/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Ryan Duff as the original reporter.", "affected_release": [{"advisory": "RHSA-2016:1912", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "firefox-0:45.4.0-1.el5_11", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2016-09-21T00:00:00Z"}, {"advisory": "RHSA-2016:1912", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:45.4.0-1.el6_8", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2016-09-21T00:00:00Z"}, {"advisory": "RHSA-2016:1912", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:45.4.0-1.el7_2", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-09-21T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Add-on update site certificate pin expiration (MFSA 2016-85, MFSA 2016-86)", "id": "1377565", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1377565"}, "csaw": false, "cvss": {"cvss_base_score": "5.1", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "status": "verified"}, "cvss3": {"cvss3_base_score": "7.4", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N", "status": "verified"}, "details": ["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."], "name": "CVE-2016-5284", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2016-09-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-5284\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-5284\nhttps://www.mozilla.org/security/advisories/mfsa2016-85/\nhttps://www.mozilla.org/security/advisories/mfsa2016-86/"], "threat_severity": "Important"}

{}