CVE-2012-3546 Authentication Bypass in Apache Tomcat
Medium 4.3
Published
Updated
Check this codebase for CVE-2012-3546 and fix it if it is affected.
What it is: CVE-2012-3546 is a medium-severity authentication bypass vulnerability in Apache Tomcat, published on 19 Dec 2012. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2012-3546 in the wild and no public exploit code.
Affected packages and fixed versions:
- org.apache.tomcat:tomcat (Maven): affected from 6.0.0; fixed in 6.0.36
- org.apache.tomcat:tomcat (Maven): affected from 6.0.0; fixed in 6.0.36
- org.apache.tomcat:tomcat (Maven): affected from 7.0.0; fixed in 7.0.30
- org.apache.tomcat:tomcat (Maven): affected from 7.0.0; fixed in 7.0.30
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2012-3546/ (Markdown: https://insights.sbomify.com/CVE-2012-3546/index.md)
Remote attackers can bypass security constraints in Apache Tomcat when FORM authentication is enabled by manipulating the URI.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-3546?
CVE-2012-3546 is a medium-severity authentication bypass vulnerability in Apache Tomcat, published on 19 Dec 2012. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-264
Which versions are affected by CVE-2012-3546?
4 open source packages ship an affected version, including org.apache.tomcat:tomcat. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.tomcat:tomcat Maven | From 6.0.0 | 6.0.36 |
org.apache.tomcat:tomcat Maven | From 6.0.0 | 6.0.36 |
org.apache.tomcat:tomcat Maven | From 7.0.0 | 7.0.30 |
org.apache.tomcat:tomcat Maven | From 7.0.0 | 7.0.30 |
Linux distribution packages (36)
jbossas Red Hat:jboss_enterprise_application_platform:4.3.0::el4 | All versions | 0:4.3.0-11.GA_CP10_patch_02.1.ep1.el4 |
jbossas-client Red Hat:jboss_enterprise_application_platform:4.3.0::el4 | All versions | 0:4.3.0-11.GA_CP10_patch_02.1.ep1.el4 |
jbossas Red Hat:jboss_enterprise_application_platform:4.3.0::el5 | All versions | 0:4.3.0-11.GA_CP10_patch_02.2.ep1.el5 |
jbossas-client Red Hat:jboss_enterprise_application_platform:4.3.0::el5 | All versions | 0:4.3.0-11.GA_CP10_patch_02.2.ep1.el5 |
jbossweb Red Hat:jboss_enterprise_application_platform:6::el5 | All versions | 0:7.0.17-3.Final_redhat_2.ep6.el5 |
jbossweb-lib Red Hat:jboss_enterprise_application_platform:6::el5 | All versions | 0:7.0.17-3.Final_redhat_2.ep6.el5 |
jbossweb Red Hat:jboss_enterprise_application_platform:6::el6 | All versions | 0:7.0.17-3.Final_redhat_2.ep6.el6 |
jbossweb-lib Red Hat:jboss_enterprise_application_platform:6::el6 | All versions | 0:7.0.17-3.Final_redhat_2.ep6.el6 |
tomcat5 Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-admin-webapps Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-common-lib Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-jasper Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-jasper-eclipse Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-jasper-javadoc Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-jsp-2.0-api Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-jsp-2.0-api-javadoc Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-parent Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-server-lib Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-servlet-2.4-api Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-servlet-2.4-api-javadoc Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat5-webapps Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:5.5.33-31_patch_08.ep5.el5 |
tomcat6 Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat6-admin-webapps Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat6-docs-webapp Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat6-el-1.0-api Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat6-javadoc Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat6-jsp-2.1-api Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat6-lib Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat6-log4j Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat6-servlet-2.5-api Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat6-webapps Red Hat:jboss_enterprise_web_server:1::el5 | All versions | 0:6.0.32-28_patch_08.ep5.el5 |
tomcat5 Red Hat:jboss_enterprise_web_server:1::el6 | All versions | 0:5.5.33-34_patch_08.ep5.el6 |
tomcat5-admin-webapps Red Hat:jboss_enterprise_web_server:1::el6 | All versions | 0:5.5.33-34_patch_08.ep5.el6 |
tomcat5-common-lib Red Hat:jboss_enterprise_web_server:1::el6 | All versions | 0:5.5.33-34_patch_08.ep5.el6 |
tomcat5-jasper Red Hat:jboss_enterprise_web_server:1::el6 | All versions | 0:5.5.33-34_patch_08.ep5.el6 |
tomcat5-jasper-eclipse Red Hat:jboss_enterprise_web_server:1::el6 | All versions | 0:5.5.33-34_patch_08.ep5.el6 |
Products include Apache Tomcat.
How do I fix CVE-2012-3546?
Upgrade org.apache.tomcat:tomcat to a fixed version for your release line: 6.0.36 or 7.0.30.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2012-3546 being exploited?
There is no known exploitation of CVE-2012-3546 in the wild and no public exploit code.
Other vulnerabilities in Apache Tomcat
Sources
Also known as GHSA-jgm2-m5cg-f66g, RHSA-2013:0005, RHSA-2013:0147, RHSA-2013:0158, RHSA-2013:0164, RHSA-2013:0641.