No-IP Dynamic Update Client (DUC) 2.2.1 on Windows uses weak permissions for the HKLM\SOFTWARE\Vitalwerks\DUC registry key, which allows local users to obtain obfuscated passwords and other sensitive information by reading the (1) TrayPassword, (2) Username, (3) Password, and (4) Hosts registry values.
Exposure of Sensitive Information to an Unauthorized Actor The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.