[redhat-lspp] Re: cups userspace -- trusted programs?

[Matt Anderson]

Michael C Thompson wrote:
>>> Personally, I think these tools should generate messages since they 
>>> are a source for leaking information, and therefore should be 
>>> restricted to administrators.

I don't think they should be considered a source for leaking 
information.  The only thing I see isn't a leak so much as a (extremely 
low bandwidth) covert channel of "is the printer enabled or disabled?" 
Since the use of these programs is restricted, we're covered under 
no-evil-admin.

> Aside from what is *required*, I thought it would be a good thing to log 
> the queue/printer enable/disable. However, if cups is logging that, I'm 
> not sure it is worth being redundant in our logs.

As long as LogLevel is set to info or higher you'll get a message in 
/var/log/cups/error_log like:

[Timestamp] Printer 'foo' stopped by 'root'.

I think I agree with you that its probably not worth being redundant, 
but if for someone finds a requirement for this to go to the audit log I 
don't see any issues around adding that.

-matt