Major Security Flaw in Dropbox on Windows

20. April, 2011

During the installation, Dropbox saves the login credentials in %APPDATA%\Dropbox\config.db

The problem: The file can be copied to another computer or account and this simple operation gives an attacker the same credentials as the victim.

Even worse: Changing the password doesn’t help since the credentials don’t depend on the password. So even after a password change, the attacker can still access the Dropbox account!

Kudos go to Derek Newton for finding this gaping hole.

Original article: Dropbox authentication: insecure by design

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