Binary package “pkexec” in ubuntu kinetic

run commands as another user with polkit authorization

 polkit is an application-level toolkit for defining and handling the policy
 that allows unprivileged processes to speak to privileged processes.
 It was previously named PolicyKit.
 pkexec is a setuid program to allow certain users to run commands as
 root or as a different user, similar to sudo. Unlike sudo, it carries
 out authentication and authorization by sending a request to polkit,
 so it uses desktop environments' familiar prompting mechanisms for
 authentication and uses polkit policies for authorization decisions.
 By default, members of the 'sudo' Unix group can use pkexec to run any
 command after authenticating. The authorization rules can be changed by
 the local system administrator.
 If this functionality is not required, removing the pkexec package will
 reduce security risk by removing a setuid program.