![]() While in most cases an attacker requires an existing session on a system, if the registry/configuration keys were stored off of the machine (such as in a file share or online), an attacker could then decrypt the required password to login to the system. The latest version still uses the same key for OptionPasswordAES but appears to have changed how the Unattended Access password is stored. With versions before v9.x, this allowed for attackers to decrypt the Unattended Access password to the system (which allows for remote login to the system as well as headless file browsing). If an attacker were to know this key, they could decrypt protect information stored in the registry or configuration files of TeamViewer. But shoutout to TeamViewer for letting me easily remote login. ![]() ![]() It used a shared AES key for all installations since at least as far back as v8, and used it for at least OptionsPasswordAES in the current version of the product. Visit the Downdetector Methodology page to learn more about how Downdetector collects. MSI is an alternative installation package for the full version of TeamViewer or for TeamViewer Host. TeamViewer Desktop through allows a bypass of remote-login access control because the same key is used for different customers' installations. On Windows 10 every time a system update is performed, the Teamviewer 9 license expires and a transfer must be used to restore the Business version.
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