Re: [Full-disclosure] Apache Killer

[Douglas Huff <dhuff@xxxxxxxxxxxxxx>]

That should say more than 4 not 4 or more. And this will almost definitely 
break webdav.

-- 
Douglas Huff

On Aug 24, 2011, at 8:40 AM, Douglas Huff wrote:

> I think this is a more complete rule that should be slightly more efficient 
> and thorough even though it's 3 separate matches:
> 
> RewriteEngine On
> RewriteCond %{HTTP:Range} bytes=0-[0-9]+, [NC,OR]
> RewriteCond %{HTTP:Range} bytes=([0-9-],){4,} [NC,OR]
> RewriteCond %{HTTP:Range} bytes=[0-9,-]+,0-(,|$) [NC]
> RewriteRule .? http://%{SERVER_NAME}/ [NS,L,F]
> 
> I cannot remember if the second RewriteCond's syntax is supported by 
> mod_rewrite and don't have a machine handy right this moment to test 
> effectiveness anyhow.
> 
> This should stop any requests with a range starting with 0- specified as a 
> range (first and third rule) or 4 or more ranges included (second rule).
> 
> -- 
> Douglas Huff

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