CVE-2011-1183: Access control bypass in Apache Tomcat
Summary
CVE-2011-1183: Access controll bypass in Apache Tomcat. Affects org.apache.tomcat:tomcat versions >= 7.0.11, < 7.0.12. Fixed in 7.0.12. How to fix ↓
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Background
Apache Tomcat is an open-source web server and servlet container that is used to deploy Java-based web applications. It provides a Java Servlet and JavaServer Pages (JSP) environment for running web applications. The vulnerability in Apache Tomcat version 7.0.11 allows remote attackers to bypass access restrictions when the web.xml file does not have a login configuration. This vulnerability exists due to an incorrect fix for CVE-2011-1088 and CVE-2011-1419.
Vulnerability Detail
The vulnerability allows remote attackers to bypass intended access restrictions by sending HTTP requests to a meta-data complete web application. When the web.xml file does not have a login configuration, Apache Tomcat 7.0.11 does not follow security constraints. This can lead to unauthorized access to sensitive resources and potential data breaches. The vulnerability was introduced in version 7.0.11 and was fixed in version 7.0.12.
How To Fix
Minimum fixed version
7.0.12
This is the first release that contains the fix.
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Workaround
If upgrading to the latest version of Apache Tomcat is not feasible, you can apply a workaround by manually configuring the login configuration in the web.xml file. Add the necessary login configuration elements to enforce access controls and prevent unauthorized access. Here is an example of how the login configuration can be added:
<login-config>
<auth-method>BASIC</auth-method>
<realm-name>Restricted Area</realm-name>
</login-config>
Make sure to customize the auth-method and realm-name according to your application's requirements.
Conclusion
The access control bypass vulnerability in Apache Tomcat version 7.0.11 can allow remote attackers to bypass intended access restrictions and gain unauthorized access to sensitive resources. It is crucial to upgrade to Apache Tomcat version 7.0.12 or later to fix this vulnerability. If upgrading is not possible, applying a workaround by manually configuring the login configuration in the web.xml file can help mitigate the risk. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
Apache Tomcat is an open-source web server and servlet container that is used to deploy Java-based web applications. It provides a Java Servlet and JavaServer Pages (JSP) environment for running web applications.
The vulnerability allows remote attackers to bypass access restrictions and potentially gain unauthorized access to sensitive resources. This can lead to data breaches and compromise the security of the affected web application.
To fix this vulnerability, it is recommended to upgrade to Apache Tomcat version 7.0.12 or later. This version includes the correct fix for the access control bypass issue. Alternatively, you can apply a workaround by manually configuring the login configuration in the web.xml file.
Yes, if upgrading to the latest version of Apache Tomcat is not feasible, you can apply a workaround by manually configuring the login configuration in the web.xml file. This will help enforce access controls and prevent unauthorized access.
You can download the latest version of Apache Tomcat from the official Apache Tomcat website (https://tomcat.apache.org/). Make sure to choose the appropriate version for your operating system and follow the installation instructions provided.
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