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Vulnerability record · CVE-2013-2067 · published 1 June 2013

CVE-2013-2067: Apache tomcat improper authentication vulnerability

Apache · Tomcat

java/org/apache/catalina/authenticator/FormAuthenticator.java in the form authentication feature in Apache Tomcat 6.0.21 through 6.0.36 and 7.x before 7.0.33 does not properly handle the relationships between authentication requirements and sessions, which allows remote attackers to inject a request into a session by sending this request during completion of the login form, a variant of a session fixation attack.

6.8 CVSS 2.0 Medium EPSS 7.1% · top 5.9% CWE-287 · Improper authentication
6.8CVSS 2.0 base score
7.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
46References
16 Jun 2026Last modified by NVD

Description

java/org/apache/catalina/authenticator/FormAuthenticator.java in the form authentication feature in Apache Tomcat 6.0.21 through 6.0.36 and 7.x before 7.0.33 does not properly handle the relationships between authentication requirements and sessions, which allows remote attackers to inject a request into a session by sending this request during completion of the login form, a variant of a session fixation attack.

AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2013-05/0041.html
http://rhn.redhat.com/errata/RHSA-2013-0833.html
http://rhn.redhat.com/errata/RHSA-2013-0834.html
http://rhn.redhat.com/errata/RHSA-2013-0839.html
http://rhn.redhat.com/errata/RHSA-2013-0964.html
http://rhn.redhat.com/errata/RHSA-2013-1437.html
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/authenticator/FormAuthenticator.java?r1=14178 Patch
http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/catalina/authenticator/FormAuthenticator.java?r1=14080 Patch
http://svn.apache.org/viewvc?view=revision&revision=1408044 Patch
http://svn.apache.org/viewvc?view=revision&revision=1417891 Patch
http://tomcat.apache.org/security-6.html Vendor Advisory
http://tomcat.apache.org/security-7.html Vendor Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/topics/security/cpujan2014-1972949.html
http://www.securityfocus.com/bid/59799
http://www.securityfocus.com/bid/64758
http://www.ubuntu.com/usn/USN-1841-1
https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.or
https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.or
http://archives.neohapsis.com/archives/bugtraq/2013-05/0041.html
http://rhn.redhat.com/errata/RHSA-2013-0833.html
http://rhn.redhat.com/errata/RHSA-2013-0834.html
http://rhn.redhat.com/errata/RHSA-2013-0839.html
http://rhn.redhat.com/errata/RHSA-2013-0964.html
http://rhn.redhat.com/errata/RHSA-2013-1437.html
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/authenticator/FormAuthenticator.java?r1=14178 Patch
http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/catalina/authenticator/FormAuthenticator.java?r1=14080 Patch
http://svn.apache.org/viewvc?view=revision&revision=1408044 Patch
http://svn.apache.org/viewvc?view=revision&revision=1417891 Patch
http://tomcat.apache.org/security-6.html Vendor Advisory
http://tomcat.apache.org/security-7.html Vendor Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/topics/security/cpujan2014-1972949.html
http://www.securityfocus.com/bid/59799
http://www.securityfocus.com/bid/64758
http://www.ubuntu.com/usn/USN-1841-1

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Source: NIST National Vulnerability Database (record CVE-2013-2067), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.