On Sun, Jul 23, 2023 at 11:18:45PM -0400, Demi Marie Obenour wrote: > On 7/23/23 12:10, Solomon Peachy via devel wrote: > > On Sun, Jul 23, 2023 at 11:25:12AM -0400, Neal Gompa wrote: > >>> If the system administrator wants to mount $UNCOMMONFS, they should be > >>> able to do so without hassle, but that doesn't mean that a normal user > >>> who got handed a sketchy USB stick at a conference should be able to do > >>> so with no restrictions at all. > >>> > >> > >> So then some kind of configuration to udisks2 to have a similar effect? > > > > And we're right back at square one, with the *overwhelmingly* common case > > of a single-user system whose "admin" is sitting in front of the system. > > > > Of _course_ they want to mount the disk. It's why they plugged it in, > > and they don't give two hoots if it's a "common filesystem" or not. > > > > (FFS, most of the stuff I personally plug in these days is ext4 or ntfs, > > because fat32 sucks and I can't rely on exfat on all systems I need to > > interoperate with) > > > > And let's be realistic here -- the overwhelmingly common threat model > > here is that there are untrusted files on a correctly-formed filesystem. > > Bad guys rarely need or care to get root on the system; what they're > > after requires normal, non-elevated user permissions. > > > > Prompting users 'are you sure you want to use this device' will turn a > > "yes" into an automatic reflex. Not automounting by default will just > > add another thing to the "things to change on default fedora > > installations" lists out there (ie right after the "enable freshrpms and > > install modern video codecs" step), becuase it's a usability nightmare. > > > > In the "usability vs security" tradeoff, usability/convenience *always* > > wins unless you're at a place that has armed guards at the door with > > instructions to shoot first. > > > > - Solomon > > Then the mount needs to be done in a sandbox, such as a KVM guest or > sandboxed userspace process. This is what libguestfs does (KVM guest). Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
