Setting the setuid bit on mount.cifs is discouraged upstream and opens
interesting security vulnerabilities:
smbfs (2:3.4.5~dfsg-2) unstable; urgency=low
* As of this version, the mount.cifs binary is no longer setuid.
Upstream has always been increasingly unsupportive of this
configuration over time. For instance, in bugs like
https://bugzilla.samba.org/show_bug.cgi?id=6853, it is clearly
mentioned that having it setuid root is discouraged.
-- Christian Perrier <bubu...@debian.org> Sat, 06 Feb 2010 15:09:00 +0100
Ubuntu will not deviate from upstream or Debian in that respect, so this
"bug" won't be fixed. Rather than restoring the missing +s, I suggest
you use "sudo" when running mount.cifs. If you need finer-grained
control, you can use /etc/sudoers to define a specific group that could
run that specific command without having access to the whole thing.
** Bug watch added: Samba Bugzilla #6853
https://bugzilla.samba.org/show_bug.cgi?id=6853
** Changed in: samba (Ubuntu)
Status: Triaged => Won't Fix
--
mount.cifs won't mount shares; set uid bit not set
https://bugs.launchpad.net/bugs/563805
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