From: Joey Hess Date: Tue, 1 Dec 2009 21:04:18 +0000 (-0500) Subject: security and comments X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/commitdiff_plain/db746519ebca6495342d836a77c0664977ee0d99 security and comments --- diff --git a/doc/plugins/contrib/xslt/discussion.mdwn b/doc/plugins/contrib/xslt/discussion.mdwn new file mode 100644 index 000000000..a549681de --- /dev/null +++ b/doc/plugins/contrib/xslt/discussion.mdwn @@ -0,0 +1,16 @@ +## security + +I'm curious what the security implications of having this plugin on a +publically writable wiki are. + +First, it looks like the way it looks up the stylesheet file will happily +use a regular .mdwn wiki page as the stylsheet. Which means any user can +create a stylesheet and have it be used, without needing permission to +upload arbitrary files. That probably needs to be fixed; one way would be +to mandate that the `srcfile` has a `.xsl` extension. + +Secondly, if an attacker is able to upload a stylesheet file somehow, could +this be used to attack the server where it is built? I know that xslt is +really a full programming language, so I assume at least DOS attacks are +possible. Can it also read other arbitrary files, run other programs, etc? +--[[Joey]]