It is not a bug, you have to change the mounting permissions in your fstab (ie. /etc/fstab).

For instance, say I wanted to be able to mount my /dev/hda2 partition. Let's say it's an ext3 partition. I would write an entry in my fstab like this:
Code:
/dev/hda2 /mnt/hda2 ext3 rw,exec,noauto 0 0
The rw stands for read-write, exec means you can execute files, noauto means the hard-disk partition will not be automatically mounted on startup, /mnt/hda2 is where it will be mounted to, the first zero is the dump, and the second is the pass.
Got it?