Granting CAP_AUDIT_WRITE to X/dbus/...

[Daniel J Walsh]

On 09/15/2014 09:57 AM, Steve Grubb wrote:
> On Monday, September 15, 2014 01:20:03 PM Laurent Bigonville wrote:
>> Hello,
>>
>> I was wondering now that the xserver can run as non-root shouldn't the
>> CAP_WRITE_AUDIT file capability be set on the Xorg executable?
> I can't imagine what the Xserver would need to do with auditing. If its linked 
> against libaudit, then I guess it needs it. That said, no one has asked me to 
> review what the Xserver is doing wrt auditing. So, I have no idea if its 
> actually correctly done.
XAce?
>
>> Same question for AVC denials logging with dbus session bus[0]?
> That one I know needs to write events.
>
>
>> And in general, does anybody has an opinion about giving this
>> capability to $random executable?
> Yep, it should be done very cautiously. Some upstreams think audit is a syslog 
> and just absolutely mess it up. Even upstreams that I helped get audit events 
> working eventually decide to make changes (for who knows what reason) and then 
> I find out a year later that they messed things up.
>
> So, if auditing is being added to $random program, be suspicious and ask on 
> the list if this is known and correct. I am wanting to fix this by creating 
> some test suites that can help identify when programs change and start doing 
> the wrong thing.
>
> -Steve
>
>
>> Cheers,
>>
>> Laurent Bigonville
>>
>> [0] See: https://bugs.freedesktop.org/show_bug.cgi?id=83856
>>
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