BugTraq
Horde Webmail file inclusion proof of concept & patch. Mar 07 2008 03:25AM
ppelanne hostgator com (1 replies)
Re: Horde Webmail file inclusion proof of concept & patch. Mar 08 2008 07:22PM
Ben Klang (bklang horde org) (1 replies)
Re: Horde Webmail file inclusion proof of concept & patch. Mar 21 2008 02:55PM
David Morton (mortonda dgrmm net)
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On Mar 8, 2008, at 1:22 PM, Ben Klang wrote:
> The Horde team has investigated this report and found it to be
> reproducible, though not exactly as reported. The SQL example in
> the original post does prevent the themes from appearing but does
> not execute the file in question. It is unclear based on their
> limited information whether they are using a modified version of
> Horde or if there were other factors that lead to the behavior
> reported. However if a null byte can be inserted into the theme
> name (for instance when using the LDAP preference backend which
> stores preference values in Base64 encoding) it does become possible
> to cause a file to be included and executed.

I'm a bit behind in reading bugtraq but thought I'd throw this in: We
had a similar situation sometime back with Maia Mailguard, and the
null byte thing depends on the platform. It was reported on a BSD
system I think, but our Linux systems would not reproduce it.

In any case, the data should be sanitized. :)

David Morton
Maia Mailguard http://www.maiamailguard.com
mortonda (at) dgrmm (dot) net [email concealed]

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