Re: The argument for fs assistance in handling archives (was: silent semantic changes with reiser4)

[Tonnerre]

Salut,

On Thu, Sep 02, 2004 at 10:38:54PM +0200, Frank van Maarseveen wrote:
> Can it do this:
> 
> 	cd FC2-i386-disc1.iso
> 	ls
> 
> or this:
> 
> 	cd /dev/sda1
> 	ls
> 	cd /dev/floppy
> 	ls
> 	cd /dev/cdrom
> 	ls
> 
> ?

Actually                  I                  see                  some
small-security-hole-you-can-drive-a-big-yellow-truck-with-flashes-on-through
problem.

$ cat fs_header owner_root flags_with_suid evil_program > evil.iso
$ ls -l evil.iso/evil_program
-rwsr-xr-x    1 root     root           24 2003-11-09 16:41 evil.iso/evil_program
$ evil.iso/evil_program
Mwahaha, I got root!
Copy-right violating IP... done.
Hijacking administrators wife... done.
Overwriting OS with Parachute 2010... done.

etc. pp.

			    Tonnerre

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