[5118] in bugtraq

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Re: Netscape Referer header considered harmful?

daemon@ATHENA.MIT.EDU (Eric Murray)
Wed Aug 6 18:50:49 1997

Date: 	Wed, 6 Aug 1997 12:47:49 -0700
Reply-To: Eric Murray <ericm@LNE.COM>
From: Eric Murray <ericm@LNE.COM>
X-To:         ron@FARMWORKS.COM
To: BUGTRAQ@NETSPACE.ORG
In-Reply-To:  <199708041510.LAA25995@netspace.org> from "Ronald L. Parker" at
              Aug 4, 97 11:10:15 am

Ronald L. Parker writes:
> I found something I consider mildly disturbing while browsing my
> referer log stats today.  Viewers to our site today have been referred
> from the following URLs:
>
> file:///Hard%20Disk/System%20Folder/Preferences/Netscape%20%C4/Bookmar
> s.html
> file:C:\NETSCAPE\COMM\PROGRAM\USERS\DEFAULT\BOOKMARK.HTM
> file:///molly's%20bookmarks/molly's%20bookmarks
>
> As you can see, this is a cross-platform problem.  What I don't know
> is whether these were sent by people just picking the bookmark from
> the dropdown or by people using their bookmarks file as a home page.
> Not having Communicator myself, and not planning to get it any time
> soon, I can't test this.  In any case, file: URLs should be private.

[why leaking Referrer is bad]


Check out my 'cookie jar' program.  It blocks cookies, ads
and Referrer (and it'll lie about User-Agent if you wish).

http://www.lne.com/ericm/cookie_jar/

--
Eric Murray  Chief Security Scientist  N*Able Technologies  www.nabletech.com
(email:  ericm  at  lne.com   or   nabletech.com)          PGP keyid:E03F65E5

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