{"api_version":"1","generated_at":"2026-07-24T02:23:38+00:00","cve":"CVE-2011-4197","urls":{"html":"https://cve.report/CVE-2011-4197","api":"https://cve.report/api/cve/CVE-2011-4197.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2011-4197","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-4197"},"summary":{"title":"CVE-2011-4197","description":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.","state":"PUBLISHED","assigner":"mitre","published_at":"2012-01-03 19:55:03","updated_at":"2026-04-29 01:13:23"},"problem_types":["CWE-264","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"7.5","severity":"","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://www.securityfocus.com/bid/51169","name":"http://www.securityfocus.com/bid/51169","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"pfSense Cross Site Scripting and Security Bypass Vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.trustmatta.com/advisories/MATTA-2011-001.txt","name":"https://www.trustmatta.com/advisories/MATTA-2011-001.txt","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"404"},{"url":"http://secunia.com/advisories/46780","name":"http://secunia.com/advisories/46780","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"title":"Security Alerts - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71969","name":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71969","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"IBM X-Force Exchange","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.osvdb.org/77982","name":"http://www.osvdb.org/77982","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"-1","archivestatus":"0"},{"url":"https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894","name":"https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"text/plain","httpstatus":"404","archivestatus":"404"},{"url":"https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e","name":"https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"text/plain","httpstatus":"404","archivestatus":"404"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html","name":"http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"-1","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2011-4197","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4197","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2011","cve_id":"4197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"pfsense","cpe5":"pfsense","cpe6":"1.0.x","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2011","cve_id":"4197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"pfsense","cpe5":"pfsense","cpe6":"1.2.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2011","cve_id":"4197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"pfsense","cpe5":"pfsense","cpe6":"1.2.2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2011","cve_id":"4197","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"pfsense","cpe5":"pfsense","cpe6":"1.2.3","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2011","cve_id":"4197","vulnerable":"1","versionEndIncluding":"2.0","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"pfsense","cpe5":"pfsense","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-07T00:01:51.231Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"51169","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/51169"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e"},{"name":"20111222 [MATTA-2011-001] pfSense x509 Insecure Certificate Creation","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"],"url":"http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://www.trustmatta.com/advisories/MATTA-2011-001.txt"},{"name":"pfsense-x509-security-bypass(71969)","tags":["vdb-entry","x_refsource_XF","x_transferred"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71969"},{"name":"77982","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"],"url":"http://www.osvdb.org/77982"},{"name":"46780","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/46780"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2011-12-22T00:00:00.000Z","descriptions":[{"lang":"en","value":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2017-08-28T12:57:01.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"name":"51169","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/51169"},{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894"},{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e"},{"name":"20111222 [MATTA-2011-001] pfSense x509 Insecure Certificate Creation","tags":["mailing-list","x_refsource_BUGTRAQ"],"url":"http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html"},{"tags":["x_refsource_MISC"],"url":"https://www.trustmatta.com/advisories/MATTA-2011-001.txt"},{"name":"pfsense-x509-security-bypass(71969)","tags":["vdb-entry","x_refsource_XF"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71969"},{"name":"77982","tags":["vdb-entry","x_refsource_OSVDB"],"url":"http://www.osvdb.org/77982"},{"name":"46780","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/46780"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2011-4197","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"51169","refsource":"BID","url":"http://www.securityfocus.com/bid/51169"},{"name":"https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894","refsource":"CONFIRM","url":"https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894"},{"name":"https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e","refsource":"CONFIRM","url":"https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e"},{"name":"20111222 [MATTA-2011-001] pfSense x509 Insecure Certificate Creation","refsource":"BUGTRAQ","url":"http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html"},{"name":"https://www.trustmatta.com/advisories/MATTA-2011-001.txt","refsource":"MISC","url":"https://www.trustmatta.com/advisories/MATTA-2011-001.txt"},{"name":"pfsense-x509-security-bypass(71969)","refsource":"XF","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71969"},{"name":"77982","refsource":"OSVDB","url":"http://www.osvdb.org/77982"},{"name":"46780","refsource":"SECUNIA","url":"http://secunia.com/advisories/46780"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2011-4197","datePublished":"2012-01-03T19:00:00.000Z","dateReserved":"2011-10-26T00:00:00.000Z","dateUpdated":"2024-08-07T00:01:51.231Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2012-01-03 19:55:03","lastModifiedDate":"2026-04-29 01:13:23","problem_types":["CWE-264","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:pfsense:pfsense:*:*:*:*:*:*:*:*","versionEndIncluding":"2.0","matchCriteriaId":"B2B94DE8-E8F3-4534-93E3-1C5F93F19E1B"},{"vulnerable":true,"criteria":"cpe:2.3:a:pfsense:pfsense:1.0.x:*:*:*:*:*:*:*","matchCriteriaId":"1882D857-FF4A-4A5E-971D-2DC67B13FC1A"},{"vulnerable":true,"criteria":"cpe:2.3:a:pfsense:pfsense:1.2.1:*:*:*:*:*:*:*","matchCriteriaId":"91B2C820-8BE9-48D0-848F-A6C6C7D8094A"},{"vulnerable":true,"criteria":"cpe:2.3:a:pfsense:pfsense:1.2.2:*:*:*:*:*:*:*","matchCriteriaId":"AA3FBF3F-BE16-48DC-AA01-F9BB2DEED01E"},{"vulnerable":true,"criteria":"cpe:2.3:a:pfsense:pfsense:1.2.3:*:*:*:*:*:*:*","matchCriteriaId":"A52BDC92-9630-46EB-8162-484D6DA1868B"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2011","CveId":"4197","Ordinal":"1","Title":"CVE-2011-4197","CVE":"CVE-2011-4197","Year":"2011"},"notes":[{"CveYear":"2011","CveId":"4197","Ordinal":"1","NoteData":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.","Type":"Description","Title":"CVE-2011-4197"},{"CveYear":"2011","CveId":"4197","Ordinal":"2","NoteData":"2012-01-03","Type":"Other","Title":"Published"},{"CveYear":"2011","CveId":"4197","Ordinal":"3","NoteData":"2017-08-28","Type":"Other","Title":"Modified"}]}}}