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"chunked" as non-final transfer-extension

From: Bjoern Hoehrmann <derhoermi@gmx.net>
Date: Sun, 06 Mar 2011 23:31:09 +0100
To: ietf-http-wg@w3.org
Message-ID: <hh28n65aqb4o4o8hvmk803ff8qirmrujjv@hive.bjoern.hoehrmann.de>

  I ran across https://rt.cpan.org/Public/Bug/Display.html?id=61960 and
could not find this in draft-ietf-httpbis-p1-messaging-12.txt. It seems
to me the specification should say "chunked" as transfer-extension is
only valid if it is the last transfer-coding, otherwise you're likely
dealing with some form of attack (unfortunately many mainstream imple-
mentations use, say, `strstr` to check for "chunked", so they misbe-
have if you do something like `Transfer-Encoding: bogochunked`; that
might also be worth a "It is incorrect to..." note).

Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de
Am Badedeich 7 · Telefon: +49(0)160/4415681 · http://www.bjoernsworld.de
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Received on Sunday, 6 March 2011 22:31:36 UTC

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