full-disclosure - Re: FYI: Apache httpd NoFollowSymLink follows symlinks feature

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Date: Fri, 24 Jun 2011 20:24:01 +0200
From: Ferenc Kovacs <tyra3l@...il.com>
To: halfdog <me@...fdog.net>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: FYI: Apache httpd NoFollowSymLink follows
 symlinks feature

> The
>>
> FAQ says: "You can usually avoid problems by either finding the
> Options directive that already applies to a specific directory and
> changing it, or by putting your Options directive inside the most
> specific possible <Directory> section."
>
> The option is in the most specific directory section and it also takes
> effect, returning forbidden on http request. But when you use the
> RenameLoop program in parallel, it fails to detect the symlink and
> delivers the linked data. This specific TOCTOU issue is known and part
> of the apache specification.
>

I didn't mean to imply otherwise, I've just explained what does the
+/- before an option does.

Tyrael

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