oss-security - Re: CVE id request: php-xajax

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Message-ID: <20081217183010.GG19388@ngolde.de>
Date: Wed, 17 Dec 2008 19:30:10 +0100
From: Nico Golde <oss-security+ml@...lde.de>
To: oss-security@...ts.openwall.com
Cc: Nico Golde <oss-security+ml@...lde.de>,
	Steffen Joeris <steffen.joeris@...lelinux.de>,
	"Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE id request: php-xajax

Hi,
* Steven M. Christey <coley@...us.mitre.org> [2008-12-17 19:28]:
> On Wed, 17 Dec 2008, Nico Golde wrote:
> 
> > > Afaik you can use & to specify values like ../foo.php&value=bar
> > > Thus the patch looked incomplete to me and should be extended to escape & as
> > > well.
> >
> > I see no problem with specifying GET variables here unless
> > this is some kind of CSRF which I don't see in this case.
> 
> If there's CSRF then that would be a separate issue.
> 
> If ";" is also allowed then there might be some possibilities for odd
> entity encodings, but I don't know if that would translate directly into
> XSS.  A simple, likely-incorrect example might be "&lt;" which would
> decode into "<" but the browser would treat it as a literal "<" instead of
> the start of a tag.

Yes but this would be a bug, no security issue by itself.

Cheers
Nico
-- 
Nico Golde - http://www.ngolde.de - nion@...ber.ccc.de - GPG: 0x73647CFF
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