[GTALUG] DMA kernel attacks

Russell Reiter rreiter91 at gmail.com
Fri Mar 17 15:28:26 EDT 2017


On Mar 17, 2017 3:11 PM, "Lennart Sorensen" <lsorense at csclub.uwaterloo.ca>
wrote:

On Fri, Mar 17, 2017 at 02:53:03PM -0400, Russell Reiter wrote:
> Ok to recap. You assumed you needed to turn off the computer to install
> PCIe. You learned PCIe is hot pluggable. You assumed the card had to be
> plugged into the target machine, you learned it did not.

Well no.  I already knew PCIe could be hot plugable and also knew it
usually is not.  expresscard on the other hand always is, I just forgot
it existed and didn't think the device in question would work with that.

Brain initially says: PCIe attack implies desktop which doesn't have
hotplug implies this is irrelevant. :)

> I was just pointing out why you made those false assumptions and then
> wrongly designated the information as irrelevant.
>
> Its because I didn't explicitly describe what was so obvious in the video.
>
> I'd normally politely say my bad but in this case I think not.

If I had watched the video from the start initially it might have helped.
Unfortunately youtube helped and made the link you posted start at a
few minutes from the end.  Youtube can be annoying at times.

And yes the "over usb3" comment did give the wrong initial impression.

In the end it does seem like a neat trick.


Not as neat as your way of pissing me off by selectively editing and trying
to look reasonable about it.

Those three posts in a row make it look like you are having a nice reasoned
conversation with yourself.

However, it was me you were replying to and you snipped without form.

Thats one of the oldest shitheel moves on usenet. You were probably still
in short pants when I first noticed that some people do treat others
contempt in that manner.

Its nothing new and I wouldnt ask for you to be banned as an abuser but
best if you just ignore my posts from now on.

You will come across smarter than the past set of arguments with me have
demonstrated.

OK


--
Len Sorensen
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