{"id":"CVE-2012-4431","title":"org/apache/catalina/filters/CsrfPreventionFilter.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.32 allows remote attackers to bypass the cross-site request forgery (CSRF) protection mechanism via a request that lacks a sessio…","summary":"org/apache/catalina/filters/CsrfPreventionFilter.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.32 allows remote attackers to bypass the cross-site request forgery (CSRF) protection mechanism via a request that lacks a sessio…","severity":"medium","cvss":4.3,"cvssVector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","cwe":["CWE-264"],"vendor":"apache","product":"tomcat","affected":["tomcat = 6.0","tomcat = 6.0.0","tomcat = 6.0.1","tomcat = 6.0.2","tomcat = 6.0.3","tomcat = 6.0.4","tomcat = 6.0.5","tomcat = 6.0.6","tomcat = 6.0.7","tomcat = 6.0.8","tomcat = 6.0.9","tomcat = 6.0.10","tomcat = 6.0.11","tomcat = 6.0.12","tomcat = 6.0.13","tomcat = 6.0.14","tomcat = 6.0.15","tomcat = 6.0.16","tomcat = 6.0.17","tomcat = 6.0.18","tomcat = 6.0.19","tomcat = 6.0.20","tomcat = 6.0.24","tomcat = 6.0.26","tomcat = 6.0.27","tomcat = 6.0.28","tomcat = 6.0.29","tomcat = 6.0.30","tomcat = 6.0.31","tomcat = 6.0.32","tomcat = 6.0.33","tomcat = 6.0.35","tomcat = 7.0.0","tomcat = 7.0.1","tomcat = 7.0.2","tomcat = 7.0.3","tomcat = 7.0.4","tomcat = 7.0.5","tomcat = 7.0.6","tomcat = 7.0.7","tomcat = 7.0.8","tomcat = 7.0.9","tomcat = 7.0.10","tomcat = 7.0.11","tomcat = 7.0.12","tomcat = 7.0.13","tomcat = 7.0.14","tomcat = 7.0.15","tomcat = 7.0.16","tomcat = 7.0.17","tomcat = 7.0.18","tomcat = 7.0.19","tomcat = 7.0.20","tomcat = 7.0.21","tomcat = 7.0.22","tomcat = 7.0.23","tomcat = 7.0.25","tomcat = 7.0.28","tomcat = 7.0.30"],"published":"2012-12-19","updated":"2026-10-09","sourceUpdated":"2026-10-09T20:17:04.243","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2012-4431","references":[{"url":"http://archives.neohapsis.com/archives/bugtraq/2012-12/0045.html","label":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2012-12/msg00089.html","label":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2012-12/msg00090.html","label":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00037.html","label":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00051.html","label":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00080.html","label":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=136612293908376&w=2","label":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=139344343412337&w=2","label":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0267.html","label":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0268.html","label":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0647.html","label":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0648.html","label":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-1437.html","label":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-1853.html","label":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/57126","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/catalina/filters/CsrfPreventionFilter.java?r1=1393088&r2=1393087&pathrev=1393088","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml?r1=1393088&r2=1393087&pathrev=1393088","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1393088","label":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-6.html","label":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-7.html","label":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/56814","label":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id?1027834","label":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1685-1","label":"secalert@redhat.com"},{"url":"https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03748878","label":"secalert@redhat.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18541","label":"secalert@redhat.com"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2012-12/0045.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2012-12/msg00089.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2012-12/msg00090.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00037.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00051.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00080.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=136612293908376&w=2","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=139344343412337&w=2","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0267.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0268.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0647.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0648.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-1437.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-1853.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/57126","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/catalina/filters/CsrfPreventionFilter.java?r1=1393088&r2=1393087&pathrev=1393088","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml?r1=1393088&r2=1393087&pathrev=1393088","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1393088","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://tomcat.apache.org/security-6.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://tomcat.apache.org/security-7.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/56814","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1027834","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1685-1","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03748878","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18541","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","exploit-available"],"epss":0.09146,"epssPercentile":0.95207,"exploits":{"github":1,"githubRepos":["https://github.com/imjdl/CVE-2012-4431"],"checkedAt":"2026-10-09T21:13:16.221Z"},"exploitAvailable":true,"ingestedAt":"2026-10-09T21:12:42.311Z","slug":"CVE-2012-4431","body":"## Overview\n\norg/apache/catalina/filters/CsrfPreventionFilter.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.32 allows remote attackers to bypass the cross-site request forgery (CSRF) protection mechanism via a request that lacks a session identifier.\n\n## Affected\n\n- `tomcat = 6.0`\n- `tomcat = 6.0.0`\n- `tomcat = 6.0.1`\n- `tomcat = 6.0.2`\n- `tomcat = 6.0.3`\n- `tomcat = 6.0.4`\n- `tomcat = 6.0.5`\n- `tomcat = 6.0.6`\n- `tomcat = 6.0.7`\n- `tomcat = 6.0.8`\n- `tomcat = 6.0.9`\n- `tomcat = 6.0.10`\n- `tomcat = 6.0.11`\n- `tomcat = 6.0.12`\n- `tomcat = 6.0.13`\n- `tomcat = 6.0.14`\n- `tomcat = 6.0.15`\n- `tomcat = 6.0.16`\n- `tomcat = 6.0.17`\n- `tomcat = 6.0.18`\n- `tomcat = 6.0.19`\n- `tomcat = 6.0.20`\n- `tomcat = 6.0.24`\n- `tomcat = 6.0.26`\n- `tomcat = 6.0.27`\n- `tomcat = 6.0.28`\n- `tomcat = 6.0.29`\n- `tomcat = 6.0.30`\n- `tomcat = 6.0.31`\n- `tomcat = 6.0.32`\n- `tomcat = 6.0.33`\n- `tomcat = 6.0.35`\n- `tomcat = 7.0.0`\n- `tomcat = 7.0.1`\n- `tomcat = 7.0.2`\n- `tomcat = 7.0.3`\n- `tomcat = 7.0.4`\n- `tomcat = 7.0.5`\n- `tomcat = 7.0.6`\n- `tomcat = 7.0.7`\n- `tomcat = 7.0.8`\n- `tomcat = 7.0.9`\n- `tomcat = 7.0.10`\n- `tomcat = 7.0.11`\n- `tomcat = 7.0.12`\n- `tomcat = 7.0.13`\n- `tomcat = 7.0.14`\n- `tomcat = 7.0.15`\n- `tomcat = 7.0.16`\n- `tomcat = 7.0.17`\n- `tomcat = 7.0.18`\n- `tomcat = 7.0.19`\n- `tomcat = 7.0.20`\n- `tomcat = 7.0.21`\n- `tomcat = 7.0.22`\n- `tomcat = 7.0.23`\n- `tomcat = 7.0.25`\n- `tomcat = 7.0.28`\n- `tomcat = 7.0.30`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":37,"depthScoreParts":{"impact":23.7,"likelihood":1.8,"exploitation":12,"ransomware":0},"changes":[]}