mailing list archives
Re: XSLT issue in MoinMoin
From: Nicolas Grégoire <nicolas.gregoire () agarri fr>
Date: Tue, 24 Jan 2012 22:37:12 +0100
How exactly does the attacker get access to the filesystem using XSLT?
An attacker can read files using either the doc-as-string() extension
function or a XML External Entity attack. Write access is done via the
<exsl:document> extension element.
Depending of your policy, you may want to affect one, two or three CVE
(one by vector ? by impact ? by type of bug ?).
Does everything using 4Suite have this issue?
Yes. Unless an obscure and undocumented option allows to deactivate this
My XSLT Wiki has some additional details, including PoC code :
- http://goo.gl/3A7h2 (4Suite)
- http://goo.gl/GI5NK (MoinMoin)