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Date: Thu, 27 Aug 2009 10:01:33 +0200
From: Tomas Hoger <thoger@...hat.com>
To: oss-security@...ts.openwall.com
Subject: Re:  Re: CVE id request: php5

On Thu, 29 Jan 2009 12:20:14 -0500 (EST) "Steven M. Christey"
<coley@...us.mitre.org> wrote:

> On Thu, 29 Jan 2009, Joe Orton wrote:
> 
> > If the script is taking untrusted input data and passing it
> > unsanitized as the "key" argument to a dba_replace() call, it can
> > override arbitrary keys in the ini file anyway.  Truncating the ini
> > file to zero length seems like a less severe problem than being
> > able to write (arbitrary?) data to arbitrary keys.
> 
> We don't have any formal criteria for this kind of thing, but in
> general, we ask whether there are realistic scenarios under which an
> attack can succeed, and if any additional privileges are gained
> versus normal methods.  These questions are particularly applicable
> to language interpreters and compilers.  Given this scenario, it
> seems unrealistic that an app would perform a dba_replace() with
> user-controlled input - and if it does, then it's a vuln in the
> application, not PHP itself.  So it doesn't seem to require a CVE.

Just for posterity, this got CVE-2008-7068 after all.

-- 
Tomas Hoger / Red Hat Security Response Team

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