Thanks, but the first thing there mention is loading a kernel without USB,
which is not really a workable option on recent hardware. The rest seems to
be about just USB flash drives. I suppose I can black list the HID modules,
but that would also cause issues. What I really need is to be selective
about what devices it let's install.


Thanks,
Adrian

On Wed, Oct 6, 2010 at 9:26 AM, Tidball, Christopher <
[email protected]> wrote:

> You might want to check out the CIS RedHat Benchmarks. There is a section
> on disabling USB devices.
>
> -----Original Message-----
> From: [email protected] [mailto:
> [email protected]] On Behalf Of Michael Miller
> Sent: Tuesday, October 05, 2010 4:53 PM
> To: PaulDotCom Security Weekly Mailing List
> Subject: Re: [Pauldotcom] Blocking new devices with UDEV?
>
> Adrian,
>
> Are you looking to block USB storage devices?  Or are you looking to have a
> whitelist of USB devices?
>
> On Sat, Oct 2, 2010 at 11:23 AM, Adrian Crenshaw <[email protected]>
> wrote:
> > Hi all,
> >    I'm trying to figure out how to block the install of new USB
> > hardware in Linux, sort of like how I can do it in Windows:
> >
> > http://www.irongeek.com/i.php?page=security/locking-down-windows-vista
> > -and-windows-7-against-malicious-usb-devices
> >
> > I'm using blacklisting Dell stuff by vendor ID as an example, though
> > it's not my end goal I'm just trying to figure out how things work.
> >
> > I do a "cat /proc/bus/input/devices" to figure out which keyboard is
> > which, then a "udevadm info -a -p /class/input/input10" to probe it
> > for strings I can use in a udev rule. My rule looks like this (I tried
> > two different ones, and commented things out):
> >
> > ATTRS{idVendor}=="413c", MODE="0000", RUN+="/opt/kde3/bin/kate"
> > #ATTR{modalias}=="input:b0003v413Cp2106e0110-e0,1,4,11,14,k71,72,73,74
> > ,75,77,79,7A,7B,7C,7D,7E,7F,80,81,82,83,84,85,86,87,88,89,8A,8C,8E,96,
> > 98,9E,9F,A1,A3,A4,A5,A6,AD,B0,B1,B2,B3,B4,B7,B8,B9,BA,BB,BC,BD,BE,BF,C
> > 0,C1,C2,F0,ram4,l0,1,2,sfw", MODE="0000", RUN+="/opt/kde3/bin/kate"
> >
> >
> > Neather seems to do anything. Any ideas? I'm also not sure how to make
> > some rules override others. Yes, I've seen
> > http://www.reactivated.net/writing_udev_rules.html#external-run but
> > it's not really helping me.
> >
> > Thanks,
> > Adrian
> >
> >
> >
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