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Date:      Sun, 8 Oct 2000 22:58:55 +0000
From:      Tony Finch <dot@dotat.at>
To:        "Andrey A. Chernov" <ache@nagual.pp.ru>
Cc:        security@freebsd.org
Subject:   Re: A new problem in apache ?
Message-ID:  <20001008225855.E12691@hand.dotat.at>
In-Reply-To: <20001001053035.A26403@nagual.pp.ru>
References:  <200010010102.VAA41966@giganda.komkon.org> <20001001053035.A26403@nagual.pp.ru>

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"Andrey A. Chernov" <ache@nagual.pp.ru> wrote:
>
>> Here are some example RewriteRule directives. The first is vulnerable, but the others are not
>>
>> 	RewriteRule    /test/(.*)		/usr/local/data/test-stuff/$1
>
>Looks like famous ../../../ trick can be used.

Yes, but you have to be reasonably cunning to get a ../../../.. into
the path whilst avoiding the checks for it.

I've posted more information about this problem to bugtraq.

Tony.
-- 
en oeccget g mtcaa    f.a.n.finch
v spdlkishrhtewe y    dot@dotat.at
eatp o v eiti i d.    fanf@covalent.net


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