Re: XSLT issue in MoinMoin

[Kurt Seifried <kseifried () redhat com>]

On 01/24/2012 01:07 PM, Nicolas Grégoire wrote:
> Hello,
>
> some vulnerabilities have been published with version 1.9.3 of
> MoinMoin : http://moinmo.in/SecurityFixes
>
> The XSS already has a CVE but not the XSLT issue. This issue is very
> similar to CVE-2012-0057 patched in PHP 5.3.9 (except the XSLT engine
> which is here '4Suite').
>
> The patch is simply a documentation update, given that 4Suite (afaik)
> doesn't allow to desactivate its extensions :
> http://hg.moinmo.in/moin/1.9/rev/99e2309a7ec0
>
> Regards,
> Nicolas Grégoire

How exactly does the attacker get access to the filesystem using XSLT?
Does everything using 4Suite have this issue?



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-- Kurt Seifried / Red Hat Security Response Team