full-disclosure - Re: Fwd: Comment on: USB devices spreading viruses

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Date: Fri, 21 Nov 2008 13:36:43 -0500
From: Valdis.Kletnieks@...edu
To: n3td3v <xploitable@...il.com>
Cc: full-disclosure@...ts.grok.org.uk, soc@...cert.gov
Subject: Re: Fwd: Comment on: USB devices spreading viruses

On Fri, 21 Nov 2008 18:13:27 GMT, n3td3v said:
> Its sad when it comes to the state of affairs when random folks on a
> mailing list need to advise the u.s department of defense because
> their IT security staff suck.

Yeah, especially when the random folks don't even understand the problem space.

You ever consider the possibility that some of those machines *need* the
removable media, because they are sneaker-netting highly sensitive data
around (the sort that you'd be upset if it was on a network-accessible
machine)?  That puts constraints on what you can and can't do to secure
the removable media.

It's a bad idea to epoxy-glue the USB slots when that's the only way to
get data in or out of the machine.  Kinda boat-anchors it.

Having said that, it *is* a good idea to configure the box so the removable
media is flagged non-execute - unless the removable media includes the
executable that's the machine's reason for being, but the media has to go
back into the GSA-rated safe when you're done working with it.

(And yes, there *are* boxes out there that don't *have* permanent storage - you
have to check the removable storage in and out of the vault.)

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