{"schemaVersion":3,"id":"CVE-2014-9720","aliases":["MGASA-2015-0251","SUSE-SU-2016:1195-1","GHSA-8vpw-mgpf-mpvv","PYSEC-2020-213","DEBIAN-CVE-2014-9720","DLA-279-1","DLA-475-1"],"status":"published","duplicateOf":null,"title":null,"description":"Tornado before 3.2.2 sends arbitrary responses that contain a fixed CSRF token and may be sent with HTTP compression, which makes it easier for remote attackers to conduct a BREACH attack and determine this token via a series of crafted requests.","dates":{"published":"2020-01-24T17:03:38.000Z","modified":"2024-08-06T13:55:04.572Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4.3,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Pypi","score":7.1,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Pypi","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","exploitability":7.2,"impact":6,"computed":true}]},"epss":{"probability":0.0251,"percentile":0.84532,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.0251},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0251,"percentile":0.84532}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0251,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0251,"percentile":0.84532}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-203","name":"Observable Discrepancy","description":"The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/203.html"}],"affected":[{"vendor":"debian","product":"python-tornado","name":"python-tornado","label":"python-tornado","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/python-tornado","purlType":"deb","versions":[{"text":"< 3.2.2-1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.0.1-1+deb6u1","noFixRecorded":false,"fixedIn":null},{"text":"< 2.3-2+deb7u1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.2-1 | < 1.0.1-1+deb6u1 | < 2.3-2+deb7u1","eol":null,"hubHref":null},{"vendor":"mageia","product":"python-tornado","name":"python-tornado","label":"python-tornado","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/python-tornado","purlType":"rpm","versions":[{"text":"< 3.1-4.1.mga4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.1-4.1.mga4","eol":null,"hubHref":null},{"vendor":"PyPI","product":"tornado","name":"tornado","label":"tornado","ecosystem":"PyPI","cpePart":null,"purl":"pkg:pypi/tornado","purlType":"pypi","versions":[{"text":"< 1c36307463b1e8affae100bf9386948e6c1b2308","noFixRecorded":false,"fixedIn":null},{"text":"< 3.2.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1c36307463b1e8affae100bf9386948e6c1b2308 | < 3.2.2","eol":null,"hubHref":null},{"vendor":"suse","product":"python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Desktop 12","name":"python-backports.ssl_match_hostname","label":"python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Desktop 12","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Desktop 12","purlType":"rpm","versions":[{"text":"< 3.4.0.2-15.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.4.0.2-15.1","eol":null,"hubHref":null},{"vendor":"suse","product":"python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Desktop 12 SP1","name":"python-backports.ssl_match_hostname","label":"python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Desktop 12 SP1","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Desktop 12 SP1","purlType":"rpm","versions":[{"text":"< 3.4.0.2-15.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.4.0.2-15.1","eol":null,"hubHref":null},{"vendor":"suse","product":"python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Workstation Extension 12","name":"python-backports.ssl_match_hostname","label":"python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Workstation Extension 12","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Workstation Extension 12","purlType":"rpm","versions":[{"text":"< 3.4.0.2-15.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.4.0.2-15.1","eol":null,"hubHref":null},{"vendor":"suse","product":"python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Workstation Extension 12 SP1","name":"python-backports.ssl_match_hostname","label":"python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Workstation Extension 12 SP1","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/python-backports.ssl_match_hostname&distro=SUSE Linux Enterprise Workstation Extension 12 SP1","purlType":"rpm","versions":[{"text":"< 3.4.0.2-15.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.4.0.2-15.1","eol":null,"hubHref":null},{"vendor":"suse","product":"python-tornado&distro=SUSE Linux Enterprise Desktop 12","name":"python-tornado","label":"python-tornado&distro=SUSE Linux Enterprise Desktop 12","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/python-tornado&distro=SUSE Linux Enterprise Desktop 12","purlType":"rpm","versions":[{"text":"< 4.2.1-11.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.2.1-11.1","eol":null,"hubHref":null},{"vendor":"suse","product":"python-tornado&distro=SUSE Linux Enterprise Desktop 12 SP1","name":"python-tornado","label":"python-tornado&distro=SUSE Linux Enterprise Desktop 12 SP1","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/python-tornado&distro=SUSE Linux Enterprise Desktop 12 SP1","purlType":"rpm","versions":[{"text":"< 4.2.1-11.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.2.1-11.1","eol":null,"hubHref":null},{"vendor":"suse","product":"python-tornado&distro=SUSE Linux Enterprise Workstation Extension 12","name":"python-tornado","label":"python-tornado&distro=SUSE Linux Enterprise Workstation Extension 12","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/python-tornado&distro=SUSE Linux Enterprise Workstation Extension 12","purlType":"rpm","versions":[{"text":"< 4.2.1-11.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.2.1-11.1","eol":null,"hubHref":null},{"vendor":"suse","product":"python-tornado&distro=SUSE Linux Enterprise Workstation Extension 12 SP1","name":"python-tornado","label":"python-tornado&distro=SUSE Linux Enterprise Workstation Extension 12 SP1","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/python-tornado&distro=SUSE Linux Enterprise Workstation Extension 12 SP1","purlType":"rpm","versions":[{"text":"< 4.2.1-11.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.2.1-11.1","eol":null,"hubHref":null},{"vendor":"tornadoweb","product":"tornado","name":"tornado","label":"tornado","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 3.2.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.2","eol":null,"hubHref":"/vendor/tornadoweb/tornado"}],"affectedCount":12,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.tornadoweb.org/en/stable/releases/v3.2.2.html","label":"www.tornadoweb.org/en/stable/releases/v3.2.2.html","hostname":"www.tornadoweb.org","tags":["X Refsource MISC","Release Notes","Vendor Advisory","WEB"]},{"url":"https://github.com/tornadoweb/tornado/commit/1c36307463b1e8affae100bf9386948e6c1b2308","label":"github.com/tornadoweb/tornado/commit/1c36307463b1e8affae100bf9386948e6c1b2308","hostname":"github.com","tags":["X Refsource MISC","Patch","WEB","FIX"]},{"url":"https://bugzilla.novell.com/show_bug.cgi?id=930362","label":"bugzilla.novell.com/show_bug.cgi?id=930362","hostname":"bugzilla.novell.com","tags":["X Refsource MISC","Issue Tracking","Patch","Third Party Advisory","WEB","REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1222816","label":"bugzilla.redhat.com/show_bug.cgi?id=1222816","hostname":"bugzilla.redhat.com","tags":["X Refsource MISC","Issue Tracking","Patch","Third Party Advisory","REPORT","WEB"]},{"url":"http://openwall.com/lists/oss-security/2015/05/19/4","label":"openwall.com/lists/oss-security/2015/05/19/4","hostname":"openwall.com","tags":["X Refsource MISC","Mailing List","Patch","Third Party Advisory","WEB"]},{"url":"https://advisories.mageia.org/MGASA-2015-0251.html","label":"advisories.mageia.org/MGASA-2015-0251.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=16100","label":"bugs.mageia.org/show_bug.cgi?id=16100","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"http://lwn.net/Vulnerabilities/647618/","label":"lwn.net/Vulnerabilities/647618/","hostname":"lwn.net","tags":["WEB"]},{"url":"https://www.suse.com/support/update/announcement/2016/suse-su-20161195-1/","label":"www.suse.com/support/update/announcement/2016/suse-su-20161195-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/930361","label":"bugzilla.suse.com/930361","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/930362","label":"bugzilla.suse.com/930362","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/974657","label":"bugzilla.suse.com/974657","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2014-9720","label":"www.suse.com/security/cve/CVE-2014-9720","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-9720","label":"nvd.nist.gov/vuln/detail/CVE-2014-9720","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/tornado/PYSEC-2020-213.yaml","label":"github.com/pypa/advisory-database/tree/main/vulns/tornado/PYSEC-2020-213.yaml","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/tornadoweb/tornado","label":"github.com/tornadoweb/tornado","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://github.com/advisories/GHSA-8vpw-mgpf-mpvv","label":"github.com/advisories/GHSA-8vpw-mgpf-mpvv","hostname":"github.com","tags":["Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2014-9720","label":"security-tracker.debian.org/tracker/CVE-2014-9720","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-01-24T17:03:38.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-06T13:55:04.572Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":27,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T06:05:30.105Z","stale":false,"partial":false}}