Cisco ASA Java 7 update causes ASDM not to Launch

The recent update to Java has caused problems when the web interface of the Cisco ASDM has a security problem such as an unsigned or expired certificate. Java no longer allows ASDM to launch. The error message is shown as “This application will be blocked in a future Java security update because the JAR file manifest does not contain the Permissions attribute”. This problem is fixed by adding a site exception to Java.

If you are using Windows, start the Java Control Panel (which on my machine is located at “C:\Program Files (x86)\Java\jre7\bin\javacpl.exe”.

Once the Control Panel is started choose the “Security” tab and click on “Edit Site List”:


in the site list, enter the URL for the Cisco ASA, apply and save. You should now be able to launch ASDM and login to the ASA once again.

Was this article helpful?

Related Articles

Leave A Comment?

You must be logged in to post a comment.