I have a self signed application, when i load it in browser it give this warning (Do you want to run this application) each time. I don't want this pop up to appear. I have tried all the settings in java configure setting.
https://www.java.com/en/download/help/java_blocked.xml
Java has further enhanced security to make the user system less
vulnerable to external exploits. Starting with Java 7 Update 51, Java
does not allow users to run applications that are not signed
(unsigned), self-signed (not signed by trusted authority) or that are
missing permission attributes.
WORKAROUND
It is highly recommended not to run these types of applications. However if you still want to run these apps, run only if you understand the risks and implications.
As a workaround, you can use the Exception Site list feature to run the applications blocked by security settings. Adding the URL of the blocked application to the Exception Site list allows it to run with some warnings.
Steps to Add URLs to the Exception Site list
Go to the Java Control Panel (On Windows Click Start and then Configure Java)
Click on the Security tab
Click on the Edit Site List button
Click Add in the Exception Site List window
Add url to Exception Site list
Click in the empty field under the Location field to enter the URL
Related
Site Exception List is a new security feature since sun Java 7. It can be configured on Windows through the control panel. How do I configure it on a Linux distribution?
Just run this:
echo 'https://asafesite.com
https://another.url
https://and.anotherone.com' > ~/.java/deployment/security/exception.sites
You can check Adding a site to the Exception Site List and follow the steps provided there to configure Exception List on Linux.
Linux/Solaris - Run the jcontrol command.
Choose the Security tab.
Click the "Manage Site List" button near the bottom.
A new window will open.
Click the Add button.
Click OK. The window will close. You may see an additional prompt if
you use an unencrypted protocol such as http or file. Choosing
encrypted protocols defends against potential man-in-the-middle
attacks.
Back on the control panel, click OK to close it.
Reload the web page on your browser to launch the RIA.
I have a problem with adding sites to the java security exception list.
According to the documentation (http://java.com/en/download/faq/exception_sitelist.xml) the exception list does exactly what I want.
Stop this stupid security message and let me use the application which I KNOW is secure.
Following setup:
Ubuntu Development machine, running application server with a little java applet on the login page (Do not ask why, I don't know thats how the application works).
If I use my local browser everything works fine.
But I have to test the site with Windows in an virtual box VM.
I have an IE8/Win7 image from modern.ie running.
I installed the latest java on this VM and every time I try to login the Java applet is blocked because of my security settings (yeah.. "my").
I added the hostname of my machine to the exception list in the java control panel (in the vm of course).
But this does not change anything it.
The application runs at http://myhost:1234/APPLICATION-NAME
I've added every possible combination to the exception list like:
http://myhost
http://myhost:1234 (with and without trailing /)
http://myhost:1234/APPLICATION-Name (with and without trailing /).
nothing worked.
Does anyone know if this exception list thing still works as stated on the FAQ page from oracle?
Why is there not a button named "oracle I know what I'm doing".
We are facing this issue on our clients machine.
Our project uses a third party java applet to open the files in respective softwares.
On windows7 we don have any issue but we have issue on windows8 OS
our project is working fine in IE10 and FF browsers. of windows8
this error is thrown only in chrome.
but when we execute same third party demo site which uses this same java applet to open the files in respective softwares, that is working fine in all browsers without making any changes in settings.
I have read many replies from different ppl that we need to changes the client java secutiry settings.
But how can we ask all our clients to make this setting so this is not a proper solution for our problem.
Please see the image below
![Error message][1] is
"Your security system have blocked an application with expired or not yet valid certificate from running"
please help me solve this ..
Go to Control Panel -> Java -> Security -> Edit Site List
Solution published in my website:
http://www.myerrorsandmysolutions.com/application-blocked-by-security-settings/
Go to Control Panel
Java
in the Security tab click the “Edit Site List…” button
click Add button
insert the URL of the website that you want access in (URL should begin with http:// or https://)
click Add button
click OK button
click OK button
Note: you could find an icon Java (32-bit) rather than Java.
If you won’t find in Control Panel a Java icon or the “Edit Site List…” button is missing and you are sure that Java is installed, open a text editor and create a file with name exception.sites containing the URL of the website that you want access in (URL should begin with http:// or https://) and save it in the following path:
C:\Users\username\AppData\LocalLow\Sun\Java\Deployment\security
where
username
is the name of the user.
go to Control Panel -> Java -> Security , choose minimum security level , Medium(Least secure setting), then click ok , save and try again...
I have an Applet that is required to run with some privileges, meaning a warning message will be displayed when it loads. If the user denies the warning message I would like to redirect to an error page and explain what happened. Is there any way to do this?
I looked in to having a timer running and redirect after a certain time period but that's not that exact and it would be nice to catch the response from the pop-up instead.
The following exception is thrown if the user denies the warning:
java.lang.SecurityException: attempted to open sandboxed jar [jar-file]
as a Trusted-Library
The exception is thrown before reaching the init function.
I looked in to having a timer running and redirect after a certain time period ..
..extend that to add a JS function that cancels the timer, then call that JS from the applet, is about the best protection you can get.
A try/catch on security related matters can work for some JREs that load applet sand-boxed if the security prompt is refused, but other run-times (notably the Iced Tea JRE) will not load the applet at all if the security prompt is refused.
I have an Applet that is required to run with some privileges.. Basically we store a file there, the file can be any file and the size can therefore be any value. The user will choose this file themselves and they can choose anything from a 1kb textfile to a many-gigabyte movie. ..
If the user can be guaranteed to have a 'Next Generation' - Plug-In 2 JRE (mentioned in the applet info. page), it is possible to the use the JNLP API in an embedded applet. The JNLP services provide access to the local disks for a sand-boxed app. See this demo of the JNLP file services.
But there is a slight hitch. There is no option to persist the path to the file chosen by the user. In this lesser security environment, the JRE does not provide a File but instead a JNLP API FileContents object. It will not provide a path and is not serializable. But if the user is willing to choose the file each run, it could be workable.
..and that reminds me. Perhaps a better alternative for launching trusted apps. is to offer a free-floating (applet or) frame using Java Web Start. If the user refuses, it never appears on-screen, but they can click the launch button again any time they like (to be prompted again).
I have mobile application in which I have added mobile file browsing. But when ever I try to open some directory or some file, it raises exception that application is trying to access mobile data.
So how do I overcome this error? If somebody could also tell me that how overcome security exception while install the application?
Actually this is not an error. You are using JSR-75. So permission needed for accessing file from memory card or phone memory.
This is not coding related issue. Basically this type of confirm alert asking for security purpose. Because you are using JSR-75.
In this purpose, You need to sign your application with at least any 3rd party signature like one from Verisign or Thrawte and then go to the application settings - permissions - and set permission for "Access User Data" as "Ask only Once" or "Allow Always" (these settings might not be available for your unsiged app on the device.)
If you facing this Issue on the emulator, go to preferences and MIDP tab, set the application domain to Trusted and set permission as "Allow Always". For more info, see here...
Signing sites are,
Thawte
Verisign
Java Verified