Which security issues exist for most publicly available Vagrant boxes? (Choose three correct answers.)
A. They accept SSH logins from the user vagrant with the password vagrant.
B. They accept SSH logins from the user vagrant with a publicly available SSH key pair.
C. The vagrant user can use sudo to obtain root privileges without additional authentication.
D. Their whole file system, including configuration files, is writable by any user, including vagrant.
E. They export their file system via NFS with full write permissions without any additional restrictions.