Description
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 session identifier.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Web Server 2 | tomcat6 +9 | 6.0.35-6_patch_06.ep6.el5 | RHSA-2013:0266 |
| Red Hat JBoss Web Server 2 | tomcat7 +9 | 7.0.30-3_patch_02.ep6.el5 | RHSA-2013:0268 |
| Red Hat JBoss EAP 6 | jbossweb +1 | 7.0.17-4.Final_redhat_3.ep6.el5 | RHSA-2013:0647 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
imjdl/CVE-2012-4431 ★ 0 · Jul 3, 2019
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.tomcat:tomcat | >= 6.0.0, < 6.0.36 | 6.0.36 | GHSA-76vr-72mv-mf3q |
| Maven | org.apache.tomcat:tomcat | >= 7.0.0, < 7.0.32 | 7.0.32 | GHSA-76vr-72mv-mf3q |
Advisories 3
- RHSA-2013:0647 Red Hat Security Advisory: jbossweb security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2013:0266 Red Hat Security Advisory: tomcat6 security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2013:0268 Red Hat Security Advisory: tomcat7 security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
References
- oval:org.mitre.oval:def:18541 vdb-entry signature
- SSRT101139 vendor-advisory
- 20121204 CVE-2012-4431 Apache Tomcat Bypass of CSRF prevention filter mailing-list
- openSUSE-SU-2013:0161 vendor-advisory
- USN-1685-1 vendor-advisory
- openSUSE-SU-2012:1700 vendor-advisory
- 56814 vdb-entry
- openSUSE-SU-2013:0192 vendor-advisory
- SSRT101182 vendor-advisory
- RHSA-2013:0268 vendor-advisory
- http://tomcat.apache.org/security-7.html
- RHSA-2013:0648 vendor-advisory
- 1027834 vdb-entry
- RHSA-2013:1437 vendor-advisory
- http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/catalina/filters/CsrfPreventionFilter.java?r1=1393088&r2=1393087&pathrev=1393088
- RHSA-2013:0647 vendor-advisory
- http://tomcat.apache.org/security-6.html
- 57126 third-party-advisory
- RHSA-2013:1853 vendor-advisory
- openSUSE-SU-2013:0147 vendor-advisory
- http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml?r1=1393088&r2=1393087&pathrev=1393088
- RHSA-2013:0267 vendor-advisory
- http://svn.apache.org/viewvc?view=revision&revision=1393088
- HPSBST02955 vendor-advisory
- openSUSE-SU-2012:1701 vendor-advisory