[33147] in bugtraq
Re: a method for bypassing cookie restrictions in web browsers
daemon@ATHENA.MIT.EDU (Michal Zalewski)
Tue Jan 20 11:41:55 2004
Date: Tue, 20 Jan 2004 02:04:52 +0100 (CET)
From: Michal Zalewski <lcamtuf@ghettot.org>
To: Dave McKinney <dm@securityfocus.com>
Cc: vuln-dev@securityfocus.com, bugtraq@securityfocus.com,
full-disclosure@netsys.com
In-Reply-To: <20040119220939.GG13533@securityfocus.com>
Message-ID: <20040120015745.H17455@dekadens.coredump.cx>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
On Mon, 19 Jan 2004, Dave McKinney wrote:
> This does appear to be a known way of tracking web users without using
> cookies: http://sourcefrog.net/projects/meantime/
Yup, my apologies for this sort-of-false alert. The only excuse I can
offer is that I failed to find any related information during a routine
run of Google queries, and that the flaw is still very much alive
nowadays.
The problem is ineed known, both the use of ETags and Last-Modified
headers to store data, and the indirect variant I described later on. The
issue had been initially reported by Martin Pool here:
http://cert.uni-stuttgart.de/archive/bugtraq/2000/03/msg00365.html
Cheers,
--
------------------------- bash$ :(){ :|:&};: --
Michal Zalewski * [http://lcamtuf.coredump.cx]
Did you know that clones never use mirrors?
--------------------------- 2004-01-20 01:57 --
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