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Date: Thu, 4 Jan 2007 17:58:54 -0000
From: "Martin O'Neal" <>
To: <>, <>
Subject: RE: [WEB SECURITY] Universal XSS with PDF files: highly dangerous

I've had a better look at this now, and there seems to be a generic
server side solution through the content-disposition header (at least
for the versions of Firefox and IE which I have tested).  If it is
specified, the default installs of both products always produce a
download dialog and don't open inline.

Sample apache config for mitigation:

<IfModule mod_headers.c>
  <FilesMatch "\.pdf$">
	Header append Content-disposition "attachment;"


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