Exposure of Sensitive Information to an Unauthorized Actor
The FTP backend for Duplicity before 0.4.9 sends the password as a command line argument when calling ncftp, which might allow local users to read the password by listing the process and its arguments.
CWE-200 - Information Exposure
An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.