Thursday, October 12, 2017

Attempted to open sandboxed jar as trusted only error fix / Cisco ASA

In this article will demonstrate how to fix the error in the following image "

This occurs when the site delivering the applet is signing it with an MD5 hash and the java on your computer doesn't use md5 -md5 is disabled-. This happens when use Cisco ASA clientless vpn, meaning the users are unable to  securely access systems behind the ASA.

The solution is enable md5 on your computer- My Environment:Windows 10

Follow the following steps:
1- Open CMD as Administrator and type
cd "C:\Program Files (x86)\Java\jre1.8.0_131\lib\security"
notepad java.security
and
cd "C:\Program Files\Java\jre1.8.0_131\lib\security"
notepad java.security

2-Change the line
jdk.jar.disabledAlgorithms=MD2, MD5,  RSA keySize < 1024
to
jdk.jar.disabledAlgorithms=MD2,  RSA keySize < 1024

means you removes md5 from the disabled list.

3-Save the file

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