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Pieter

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Reply with quote  #1 
TeamViewer uses https, that's safe.

But my concern is: one PC publishes his desktop to a server on the Internet and another connects to that server to see the desktop.  Is that safe ? 
Can anyone at TeamViewer see the desktop. I don't think they' ll do that, but is it technically possible ?
It stands or falls with the confidence that you have in TeamViewer.
What are your thoughts ?

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Pieter Demeulemeester
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Reply with quote  #2 
There was a vulnerability.
https://thehackernews.com/2017/12/teamviewer-hacking-tool.html

Supposedly, it was patched.
https://threatpost.com/teamviewer-rushes-fix-for-permissions-bug/129096/
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cj_berlin

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Reply with quote  #3 
Techically possible, sure. You are not using any certificate or shared secret that you genereated so TeamViewer owns the whole trust chain.

On the other hand, it's a German company in very good standing, doesn't have (as far as I know anyway) any ties to either US, Russia, China or the Arab world so, well, in this part of the world we are generally inclined to trust them.

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Evgenij Smirnov

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Reply with quote  #4 
Why would the lack of ties to a possible adversarial country determine if one should trust a program with a known vulnerability?  Do all hackers come from those countries?
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cj_berlin

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Reply with quote  #5 
Of course they don't. But the hackers are not what I would worry about since they will find their way in anyway if the price is right, running remote access software of any kind just makes the task easier.
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Pieter

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Reply with quote  #6 
What I wanted to know for sure is if I'm right to say that there is no direct communication between the two endpoints in a Teamviewer communication.
The Teamviewer communication is always through a third node (the teamviewer server) for the entire duration of the communication.
Am I right here ?

That should makes sense since both endpoints can do outbound communication through their own firewall (and get replies from the Teamviewer server). There is no direct inbound communication for both of the endpoints.


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Pieter Demeulemeester
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cj_berlin

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Reply with quote  #7 
Yes that’s how it works, except in LAN with a paid for license.
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Pieter

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Reply with quote  #8 
Thanks for the info.
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Pieter Demeulemeester
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