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SELinux Mailing ListFW: A notion
From: Lon McPhail <lmcphail_at_landeretreat.com>
Date: Mon, 1 Oct 2001 20:12:25 -0700
From: Lon McPhail [mailto:lmcphail@landeretreat.com] Sent: Monday, October 01, 2001 8:07 PM To: 'owner-selinux@tycho.nsa.gov' Subject: RE: A notion
How about if you ran the code on a VMware GSX server farm? Consider;
* Take, say, twenty boxes running VMware GSX.
* On nineteen of them, establish a Beowulf server cluster operating on a
192.168.*.* address set.
Lon McPhail
Sent: Monday, October 01, 2001 3:43 PM To: Justin R. Smith; selinux@tycho.nsa.gov Subject: RE: A notion
that's not a bad idea, though the solution addresses a limited number of
attacks. you can insert, for Intel and Athlon-based machines, NOPs
(assembler for No Operation) to pad the code. To randomize the
number/position of NOPs inserted one could use a perl script to identify
begin and end-points in a c program and have it insert the NOPs randomly
before compilation. In the case of optimizing compilers you may have to use
dummy instructions such as SHL then SHR on some variable, or conditional
jumps leading to a NOP, etc.
> -----Original Message----- -- You have received this message because you are subscribed to the selinux list. If you no longer wish to subscribe, send mail to majordomo@tycho.nsa.gov with the words "unsubscribe selinux" without quotes as the message. -- You have received this message because you are subscribed to the selinux list. If you no longer wish to subscribe, send mail to majordomo@tycho.nsa.gov with the words "unsubscribe selinux" without quotes as the message.Received on Mon 1 Oct 2001 - 23:25:55 EDT |
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Date Posted: Jan 15, 2009 | Last Modified: Jan 15, 2009 | Last Reviewed: Jan 15, 2009 |