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CVE-2012-3546: Authentication Bypass in Apache Tomcat

May 17, 2022 (updated July 13, 2022)

org/apache/catalina/realm/RealmBase.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.30, when FORM authentication is used, allows remote attackers to bypass security-constraint checks by leveraging a previous setUserPrincipal call and then placing /j_security_check at the end of a URI.

References

  • lists.opensuse.org/opensuse-updates/2012-12/msg00089.html
  • lists.opensuse.org/opensuse-updates/2012-12/msg00090.html
  • lists.opensuse.org/opensuse-updates/2013-01/msg00037.html
  • marc.info/?l=bugtraq&m=136612293908376&w=2
  • marc.info/?l=bugtraq&m=139344343412337&w=2
  • rhn.redhat.com/errata/RHSA-2013-0004.html
  • rhn.redhat.com/errata/RHSA-2013-0005.html
  • rhn.redhat.com/errata/RHSA-2013-0146.html
  • rhn.redhat.com/errata/RHSA-2013-0147.html
  • rhn.redhat.com/errata/RHSA-2013-0151.html
  • rhn.redhat.com/errata/RHSA-2013-0157.html
  • rhn.redhat.com/errata/RHSA-2013-0158.html
  • rhn.redhat.com/errata/RHSA-2013-0162.html
  • rhn.redhat.com/errata/RHSA-2013-0163.html
  • rhn.redhat.com/errata/RHSA-2013-0164.html
  • rhn.redhat.com/errata/RHSA-2013-0191.html
  • rhn.redhat.com/errata/RHSA-2013-0192.html
  • rhn.redhat.com/errata/RHSA-2013-0194.html
  • rhn.redhat.com/errata/RHSA-2013-0195.html
  • rhn.redhat.com/errata/RHSA-2013-0196.html
  • rhn.redhat.com/errata/RHSA-2013-0198.html
  • rhn.redhat.com/errata/RHSA-2013-0221.html
  • rhn.redhat.com/errata/RHSA-2013-0235.html
  • rhn.redhat.com/errata/RHSA-2013-0623.html
  • rhn.redhat.com/errata/RHSA-2013-0640.html
  • rhn.redhat.com/errata/RHSA-2013-0641.html
  • rhn.redhat.com/errata/RHSA-2013-0642.html
  • svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/catalina/realm/RealmBase.java?r1=1377892&r2=1377891&pathrev=1377892
  • svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml?r1=1377892&r2=1377891&pathrev=1377892
  • svn.apache.org/viewvc?view=revision&revision=1377892
  • tomcat.apache.org/security-6.html
  • tomcat.apache.org/security-7.html
  • github.com/advisories/GHSA-jgm2-m5cg-f66g
  • nvd.nist.gov/vuln/detail/CVE-2012-3546
  • oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19305

Code Behaviors & Features

Detect and mitigate CVE-2012-3546 with GitLab Dependency Scanning

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Affected versions

All versions starting from 6.0.0 before 6.0.36, all versions starting from 7.0.0 before 7.0.30

Fixed versions

  • 6.0.36
  • 7.0.30

Solution

Upgrade to versions 6.0.36, 7.0.30 or above.

Impact 4.3 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-264

Source file

maven/org.apache.tomcat/tomcat/CVE-2012-3546.yml

Spotted a mistake? Edit the file on GitLab.

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