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

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Wed, 17 Dec 2008 13:11:00 -0500 (EST)
From: "Steven M. Christey" <coley@...us.mitre.org>
To: Nico Golde <oss-security+ml@...lde.de>
cc: Steffen Joeris <steffen.joeris@...lelinux.de>,
        oss-security@...ts.openwall.com,
        "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE id request: php-xajax

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.

- Steve

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.