On Fri, 2015-03-06 at 19:35 -0500, Miloslav Trmač wrote:
> There is another very important case where this falls down: the computer is 
> enrolled into AD/IPA and the password is used throughout the organization.  
> Just looking at a local machine does not necessarily tell you what the needed 
> password strength is.
> 
> This is of course not an argument in favor of making the policy stricter, but 
> it does mean that _every_ way to change the password should respect the 
> system-wide libpwsafe configuration.  If the site administrator, along with 
> enrolling into IPA/AD, sets up libpwquality to set up password strength 
> restriction they deem appropriate, _all_ of Workstation should enforce these 
> restrictions.  Now perhaps the right default is to _have_ no restrictions but 
> they need to be enforced the moment someone sets them up.

I doubt anyone will argue against this. :)

> Um, “we can’t do $this so we need to leave other parts of the system 
> insecure” is really not sound logic.  At the very least we have the option of 
> giving up on VNC instead.  And I don’t really see why it would be impossible 
> to add a password strength check for VNC at all; in the worst case we could 
> just store the libpwquality score when the password is set / changed 
> somewhere, and use this stored score to decide whether to warn the user 
> before enabling VNC (storing the scores like this, and telling the attacker 
> which accounts are weak, would be bad on multi-user desktops, but those are 
> rare nowadays and the admin wouldn’t want individual users to go enabling 
> services on such machines anyway).  What am I missing?

Eh, well by my logic they are both so closely-related that it's nonsense
to treat them differently... but that comment was more a wishful
"somebody please fix VNC or rewrite history" than anything. I have no
clue why VNC passwords are limited/truncated to eight characters, but it
seems like that limitation makes the protocol not worth supporting at
all, let alone worth promoting in System Settings. I wonder how well
FreeRDP is coming along....

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