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Make windows client work without Diffie Hellman requirement

Make windows client work without Diffie Hellman requirement

Explorer | Level 4

For security reasons Diffie Hellman (DH) key exchange is disabled on my system. The dropbox client keeps the status 'Syncing...". When I turn on DH and restart the client, the client starts syncing en keep my files up to date.

 

Can you update the client without a dependency on DH? There are supported alternatives. DH has been disabled since the publication of the logjam (https:confused face:/weakdh.org/) attack in 2015. The client stopped syncing a few weeks back.

 

See also https:confused face:/www.dropboxforum.com/t5/Dropbox-files-folders/Dropbox-103-4-383-not-syncing-after-latest-Windo...

 

2 Comments
New member | Level 2

This is currently affecting my organization as well. We have had a number of users (30+) report this issue and have confirmed that it is caused by not having Diffie-Hellman key exchanges enabled in our environment for security reasons.

 

Edit: After further testing with my admins, we have confirmed that this does work still if you enforce a string of 4096 characters for Diffie Hellman. I'm not sure if that may make this secure enough for you and your organization mdevries, but could be a potential user end fix. It would still be best for Dropbox to resolve this potential security issue.

Explorer | Level 4

Sadly, no update from dropbox.

 

Enforcing 4096 characters could work. How can you change this setting?

 

Regards,

Martin

 

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