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From Eric Covener <>
Subject Re: CVE-2011-3192 and mod_proxy
Date Tue, 30 Aug 2011 11:04:52 GMT
> But for content that is proxied via mod_proxy_http, the request
> including the bad Range: header hits the backend server. So, if the
> backend server is also an Apache, which is still vulnerable to
> CVE-2011-3192, it would receive malicious Range headers unfiltered.
> Is this intended behavior? Couldn't we filter out bad ranges on proxy
> request too?

This is intended.

None of the fixes to the issue that have been discussed here drop the
header itself, that's just the circumvention until the header could be
safely processed.

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