Full Disclosure mailing list archives
Re: Backdooring PDF Files
From: "David Kierznowski" <david.kierznowski () gmail com>
Date: Wed, 13 Sep 2006 20:52:51 +0000
I installed 7.0.8 (latest version) for testing. If the document is loaded from the browser you receive no warning. v7.0.8 seems to warn the user if the document is loaded from the desktop. I think this has to do with different Adobe contexts. -- David Kierznowski On 13/09/06, pdp (architect) <pdp.gnucitizen () googlemail com> wrote:
I have tested both of the examples and no warning boxes are showing. It seams that everybody is getting different results. Interesting! On 9/13/06, Juha-Matti Laurio <juha-matti.laurio () netti fi> wrote: > Proof of Concept for example 1 (backdoored1.pdf) opened with Adobe Reader 7.0.8 > (i.e. no browser plug-in used) issued a Security Warning dialog box: > > "The document is trying to conenct to the site: > http://www.google.com/owned.html > > If you trust the site click "Allow", otherwise click "Block"." > > Option Remember my action is in use as well. > > When clicking "Allow" this Google page was opened in MSIE (in fact FF is my default browser, however). > > Am I missing something related to differences between Reader plug-in and Reader application? > > - Juha-Matti > > > David Kierznowski <david.kierznowski () gmail com> wrote: > > > > Recently, there has been alot of hype involving backdooring various > > web technologies. pdp (arcitect) has done alot of work centered around > > this area. > > > > I saw Jeremiah Grossman mention PDF's being "BAD", however, I was > > unable to easily locate any practical reasons as to why. I decided to > > investigate this a little further. > > > > This article discusses two possible backdoor techniques for Adobe > > Acrabat Reader and Professional. It includes proof of concept code and > > backdoored PDF documents. > > > > The article can be found here: > > http://michaeldaw.org/ > > > > _______________________________________________ > > Full-Disclosure - We believe in it. > > Charter: http://lists.grok.org.uk/full-disclosure-charter.html > > Hosted and sponsored by Secunia - http://secunia.com/ > > _______________________________________________ > Full-Disclosure - We believe in it. > Charter: http://lists.grok.org.uk/full-disclosure-charter.html > Hosted and sponsored by Secunia - http://secunia.com/ > -- pdp (architect) http://www.gnucitizen.org
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Backdooring PDF Files David Kierznowski (Sep 13)
- Re: Backdooring PDF Files Bipin Gautam (Sep 16)
- <Possible follow-ups>
- Re: Backdooring PDF Files Juha-Matti Laurio (Sep 13)
- Re: Backdooring PDF Files pdp (architect) (Sep 13)
- Re: Backdooring PDF Files David Kierznowski (Sep 13)
- Re: Backdooring PDF Files Hugo Francisco González Robledo (Sep 14)
- Re: Backdooring PDF Files Stan Bubrouski (Sep 14)
- Re: Backdooring PDF Files pdp (architect) (Sep 13)
- Re: Backdooring PDF Files Juha-Matti Laurio (Sep 13)
- Re: Backdooring PDF Files Juha-Matti Laurio (Sep 13)
- Re: Backdooring PDF Files Markus Jansson (Sep 13)
- Re: Backdooring PDF Files Geo. (Sep 14)
- Re: Backdooring PDF Files Dude VanWinkle (Sep 14)
- Re: Backdooring PDF Files Geo. (Sep 14)
- Re: Backdooring PDF Files fit happy (Sep 14)
- Re: Backdooring PDF Files Greg Bur (Sep 15)