Bugtraq mailing list archives
RE: Millions of PDF invisibly embedded with your internal disk paths
From: "Ian Bradshaw" <ian () ianbradshaw net>
Date: Fri, 4 Dec 2009 15:27:29 -0000
This isnt a security issue its a privacy issue. -----Original Message----- From: Thor (Hammer of God) [mailto:thor () hammerofgod com] Sent: 03 December 2009 22:27 To: bugtraq () securityfocus com Subject: RE: Millions of PDF invisibly embedded with your internal disk paths (Fixing rejected post) Meh. I replied to something similar off-list. "Leaking" a pdf with 'e:\nethome\joe_kitten_lover' doesn't remotely "prove" anything. If I create a user called MayIMommaDogFaceToTheBannanPatch and "leaked" a pdf, it doesn't mean Steve Martin was culpable. This is a non-issue, no matter how much you might want to create some fanciful "bonsai kitten" theory to get Joe in trouble, dawg. t From: WebDawg [mailto:webdawg () gmail com] Sent: Thursday, December 03, 2009 1:58 PM To: Pavel Machek Cc: Patrick Webster; Thor (Hammer of God); bugtraq () securityfocus com Subject: Re: Millions of PDF invisibly embedded with your internal disk paths While the risk may not be large it is still information that should not be leaked. Leaky computers should always be plugged. On Thu, Dec 3, 2009 at 4:01 AM, Pavel Machek <pavel () ucw cz> wrote: Hi!
I agree. Discovering the local path may be considered a risk, but in most cases the risk is nil.
Often, risk is not big, agreed.
Considering that, perhaps for the PDF format specifically this could be an issue, under the assumption that consumers use PDF /specifically/ to prevent data leakage.
Exactly. Imagine someone posting (anonymously) copy of EvilCorp's internal web pages, that prove EvilCorp is planning to produce bonsai kitten, as .pdf. If the pdf contains 'e:\nethome\joe_kitten_lover' .. then, well, Joe has a problem. (It would be bad if that .pdf contained username/hostname, too; I could imagine even timestamps being problematic.) (And yes, similar problems are elsewhere. Exif contains way too much information, if you try to leak pictures of bonsai kitten from digital camera.) Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
Current thread:
- Re: Millions of PDF invisibly embedded with your internal disk paths Pavel Machek (Dec 03)
- Message not available
- RE: Millions of PDF invisibly embedded with your internal disk paths Thor (Hammer of God) (Dec 04)
- RE: Millions of PDF invisibly embedded with your internal disk paths Ian Bradshaw (Dec 04)
- Re: Millions of PDF invisibly embedded with your internal disk paths Nick FitzGerald (Dec 07)
- RE: Millions of PDF invisibly embedded with your internal disk paths Thor (Hammer of God) (Dec 10)
- RE: Millions of PDF invisibly embedded with your internal disk paths Thor (Hammer of God) (Dec 04)
- Re: Millions of PDF invisibly embedded with your internal disk paths Nick FitzGerald (Dec 07)
- Message not available
- Message not available
- Re: Millions of PDF invisibly embedded with your internal disk paths Pavel Machek (Dec 07)