On Sat, 2012-05-05 at 19:42 -0400, Jeffrey Walton wrote: > I know there's not much new here, but I am amazed that Ubuntu, Linux > Mint and friends ship with a Guest account present and enabled. > > The Guest account is surreptitiously added through a lightdm > configuration file, and is not part of the standard user database. > Because its not part of the standard user database, it can't be > disabled through /etc/shadow, nor disable it through familiar tools > such as userdel and usermod. Additionally, the damn account does not > show up in distribution provided tools such as User Accounts applet. > > To make matters worse, grepping for guest returns 0 results because > lightdm.conf does not mention one must add the following to disable > the guest account (nothing is required to enable the account): > > allow-guest=false > > To add insult to injury, the Guest account is not sandboxed and user > home directories lack sufficient ACLs, so the guest account is able to > wander through user's home directories: The guest account should be confined with an AppArmor profile on Ubuntu, which prevents it from accessing other users' directories. Please file a bug if this isn't working correctly for you. Marc.
