MDaemon Patch Bulletin – MD011221

Fix to Remote Administration and Webmail vulnerabilities

Published January 12, 2021

Summary

Vulnerabilities in MDaemon Remote Administration and Webmail (WorldClient) were recently reported by Piotr Bazydło. This vulnerability may impact all browser types.

To address this issue, the development team at MDaemon Technologies has released patches for affected versions of MDaemon.

For specific information, see the Affected Software Section below.

Recommendation: For MDaemon installations, MDaemon Technologies recommends that administrators download and install the appropriate update listed below.

Known Issues: There are no known issues that customers may experience when installing this patch.

Affected Software

The following versions of MDaemon have been tested and determined to be affected. Please download the file version AND language based upon your current installation.

For versions 16.0 - 20.0, download the correct installer and run it.

MDaemon 20.0.X (32 bit)

20.0.4 - Select Your Language

MDaemon 20.0.X (64 bit)

20.0.4 64 bit - Select Your Language

MDaemon 19.5.X (32 bit)

19.5.7 - Select Your Language

MDaemon 19.5.X (64 bit)

19.5.7 64 bit - Select Your Language

MDaemon 19.0.X (32 bit)

19.0.6 - Select Your Language

MDaemon 19.0.X (64 bit)

19.0.6 64 bit - Select Your Language

MDaemon 18.5.X (32 bit)

18.5.6 - Select Your Language

MDaemon 18.5.X (64 bit)

18.5.6 64 bit - Select Your Language

MDaemon 18.0.X (32 bit)

18.0.4 - Select Your Language

MDaemon 18.0.X (64 bit)

18.0.4 64 bit - Select Your Language

MDaemon 17.5.X (32 bit)

17.5.5 - Select Your Language

MDaemon 17.5.X (64 bit)

17.5.5 64 bit - Select Your Language

MDaemon 17.0.X (32 bit)

17.0.5 - Select Your Language

MDaemon 17.0.X (64 bit)

17.0.5 64 bit - Select Your Language

MDaemon 16.5.X (32 bit)

16.5.5 - Select Your Language

MDaemon 16.5.X (64 bit)

16.5.5 64 bit - Select Your Language

MDaemon 16.0.X (32 bit)

16.0.7 - Select Your Language

MDaemon 16.0.X (64 bit)

16.0.7 64 bit - Select Your Language

Frequently Asked Questions (FAQ) Related to This Update

What is the impact?

These attacks may impact all users of MDaemon Remote Administration and MDaemon Webmail (WorldClient).

What versions of MDaemon are affected?

Supported versions of MDaemon Email Server - versions 16.0.0 through 20.0. Users of earlier, un-supported versions of MDaemon are also encouraged to upgrade to the latest version to ensure they have the latest patches and security updates.

What do I need to do in order to resolve this issue?

Simply download and install the appropriate patch listed in the Affected Software Section of this update. There is no requirement to renew your license to obtain the fix.

Additional questions can be answered by using the web site Chat Feature in the top right header or by contacting MDaemon Technologies Support.