RE: [WEB SECURITY] Universal XSS with PDF files: highly dangerous

["Martin O'Neal" <martin.oneal () corsaire com>]

This also works for the affected versions of Opera mentioned elsewhere
on the list (9.10, 8.54)...

-----Original Message-----
From: Martin O'Neal [mailto:martin.oneal () corsaire com] 
Sent: 04 January 2007 17:59
To: bugtraq () securityfocus com; websecurity () webappsec org
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;"
  </FilesMatch>
</IfModule>

Martin...

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