Once you install Debian to function as a server, you might notice it’s missing something important–sudo. Jack Wallen walks you through the process of installing sudo and enabling it for user. Debian ...

A vulnerability in the Linux sudo command has been discovered that could allow unprivileged users to execute commands as root. Thankfully, this vulnerability only works in non-standard configurations ...

According to what i have read online, debian should, in this case, install sudo by default and the make the first user an administrative user.