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Comment: Published by Scroll Versions from space WINSTALLATION and version 24.0
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On Secure Bridge Setup, you can find operational concepts for a secure

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BRIDGE setup. Find here some additional security recommendations to consider for

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BRIDGE hardening.

Disabling TLS 1.0

Info

Bridge 7.2.0 As of BRIDGE 7.2.0, TLS 1.0 is disabled by default. Still, you can use this guide to re-enable it if necessary.

If you do not have any clients that need TLS 1.0, we recommend to disable this protocol for the

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BRIDGE from the security point of view. To be downwards compatible with MagicDraw 17 (see note), we did not implement this to the standard

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BRIDGE installation.

Note

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MagicDraw 17 uses Java 6, and thus only supports protocols up to TLS 1.0. So, if you disable Tomcat TLS 1.0 on your

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BRIDGE, you will not be able to deploy services directly from MagicDraw 17 to this

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BRIDGE (a handshake error will occur).
This does not affect repositories that have been compiled with MagicDraw 17. They can be uploaded via the

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BRIDGE UI nevertheless.

To do disable TLS 1.0, you have to edit the Tomcat and Apache configuration files of the

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BRIDGE as shown in the table below.

LocationAttribute/PropertyExampleNotes
Tomcat

<your

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BRIDGE programs directory>/servlets/conf/server

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.xml

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sslEnabledProtocols sslEnabledProtocols="TLSv1.2,TLSv1.1,TLSv1,SSLv2Hello"
sslEnabledProtocols="TLSv1.2,TLSv1.1,SSLv2Hello"

This file will get overwritten on

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BRIDGE updates! The old configuration file is copied to server.xml.old.
So, after

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a BRIDGE update re-apply the changes from the backup copy of the file.

Apache

<your

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BRIDGE data directory>/proxies/templates/httpd.conf

SSLProtocol SSLProtocol All -SSLv2 -SSLv3 -TLSv1
SSLProtocol All -SSLv2 -SSLv3

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Copy the Apache templates that have been provided with your

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BRIDGE installation from folder <your

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BRIDGE data directory>/proxies/system_templates to folder <your

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BRIDGE data directory>/proxies/templates and modify the copy.

The actually used file <your

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BRIDGE data directory>/proxies/conf/httpd.conf is generated from this template file on

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BRIDGE start-

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up. The

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BRIDGE will generate the configuration from the file in folder templates if available. If not, the

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BRIDGE will use the system templates.

Steps

  1. Apply changes to the

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  1. files as described above. Consider the notes!
  2. Restart the

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  1. BRIDGE to apply the changed Apache configuration

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  1. .
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