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Make windows client work without Diffie Hellman requirement

Make windows client work without Diffie Hellman requirement

mdevries
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://weakdh.org/) attack in 2015. The client stopped syncing a few weeks back.

 

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

 

4 Comments
KyleColby
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.

mdevries
Explorer | Level 4

Sadly, no update from dropbox.

 

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

 

Regards,

Martin

 

Walter
Dropboxer

Hi peeps!

 

This idea is going to need a bit more support before we share your suggestion with the team. 
 
I've updated the status to encourage more users to back you up! 
Status changed to: Needs more votes
Walter
Dropboxer

This idea has been closed due to inactivity and can no longer be voted for. If you have a similar idea please share it with us here.

Status changed to: Closed
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1 votes received Status: Closed