Vulnerability in tomcat7 - security update
Summary
DLA-996-1: tomcat7 - security update. Affects tomcat7 versions < 7.0.28-4+deb7u14. Fixed in 7.0.28-4+deb7u14. How to fix ↓
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Background
Tomcat7 is a web server and servlet container that is used to serve Java-based web applications. It provides an environment for running Java code and handling HTTP requests. The vulnerability in tomcat7 allows for unexpected and undesirable results when serving static error pages. This can lead to the replacement or removal of custom error pages, potentially impacting the user experience and security of the application.
Vulnerability Detail
The error page mechanism in the Java Servlet Specification requires that the original request and response are forwarded to the error page when an error occurs. However, the Default Servlet in Apache Tomcat did not handle static error pages correctly. Depending on the original request, this could result in unexpected behavior, including the replacement or removal of custom error pages. If the DefaultServlet is configured to permit writes, this vulnerability could be exploited to modify or delete the custom error page.
How To Fix
Minimum fixed version
7.0.28-4+deb7u14
This is the first release that contains the fix.
sudo apt-get install --only-upgrade tomcat7Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The vulnerability in tomcat7 can lead to unexpected and undesirable results for static error pages. It is recommended to upgrade to the fixed version of the tomcat7 package to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for tomcat7 →
FAQ
This vulnerability can lead to unexpected and undesirable results for static error pages, including the replacement or removal of custom error pages.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
No specific workaround has been mentioned for this vulnerability.
The vulnerability affects versions of tomcat7 prior to 7.0.28-4+deb7u14.
You can find more information about this vulnerability in the Debian LTS security advisory DLA-996-1.
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