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Re: Namespace prefixes are a security risk

  • From: "David A. Lee" <dlee@calldei.com>
  • To: "G. Ken Holman" <gkholman@CraneSoftwrights.com>
  • Date: Mon, 28 Dec 2009 11:52:51 -0500

Re:  Namespace prefixes are a security risk
You don't even need namespaces for this 'hidden message'.
Just put the original order  in a file   

or host it at

Or send it in an email with a subject like "Attach Now".
in fact you dont need the XML at all for any of this.  An empty or 
non-existant file will do.

David A. Lee

G. Ken Holman wrote:
> At 2009-12-28 11:14 -0500, Costello, Roger L. wrote:
>> The problem described below occurs with XML 'guards' that are trying 
>> to prevent the release of unauthorized information at an enclave 
>> boundary.
> Surely, Roger, you've been dipping into the New Year's grog a bit 
> early here, haven't you?
>> Namespace prefixes provide a ready channel for transmitting 
>> information out of the protected enclave.  That channel is overlooked 
>> by most XML applications, expect for an application that is 
>> specifically looking for that information.
>> ...
>>     <attackNOW:book xmlns:attackNOW="http://www.book.org">
>>         <attackNOW:title>The Origin of Wealth</attackNOW:title>
>> ...
>> Not so innocent-looking anymore, is it?
> No, it looks ludicrous!
> I'm guessing you are pulling our collective legs here for some holiday 
> fun.  This is reminiscent of worries of rock music carrying hidden 
> transmissions programming the teenagers to rebel against their parents.
> Have a happy new year!
> . . . . . . . . . . . Ken
> -- 
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