On 08/30/2017 05:17 PM, [email protected] wrote:
>> Please also note that any remote administration command can only
>> be received through networking, so proper firewalling (ipv6 may
>> complicate things - prepare your studies in advance) and monitoring
>> may help great lengths. Also, do avoid using x86-based
>> firewalls/routers... ;)
>> 
>> -- Alex
> 
> Just to be clear for beginners - this means that if you're running
> Qubes on an x86 processor, you cannot trust Qubes as a firewall to
> prevent IME remote administration.
> 
> You would need a separate device to act as a firewall. Most routers
> have recently been shown to be compromised in similar ways. It will
> be difficult, but should be possible, to find a device that is secure
> given current knowledge.
> 

You are right. With "proper firewalling" I was implying separate
physical hardware, and that was the basis for "avoid x86 based firewalls".

There's no isolation benefit with a software firewall if the remote
administration packets are received by the local network adapter, since
the "zombie RAT fungus" (Intel ME) fiddles with PCI devices on its own.

-- 
Alex

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