Changes for page Application_Liferay

Last modified by Nicolas Gregoire on 2012/04/19 14:05
From version Icon 8.1 Icon
edited by Nicolas Gregoire
on 2012/01/13 14:05
Change comment: There is no comment for this version
To version Icon 9.1 Icon
edited by Nicolas Gregoire
on 2012/01/13 14:08
Change comment: There is no comment for this version

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12 12  LIferay includes numerous portlets. The "XSL Content" portlet displays the result of the XSL transformation of a XML document. The XSLT engine used by default is [[Xalan-J>>Engine_Saxon]] (but this can probably modified easily using [[JAXP>>http://en.wikipedia.org/wiki/Java_API_for_XML_Processing||rel="__blank"]]). As Xalan-J allows by default to execute Java code from the stylesheet, that's an easy to exploit vulnerability. Any logged-in user can execute arbitrary Java code in the context of the Web Application server (usually Tomcat) : [[CVE-2011-1571>>http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1571||rel="__blank"]].
13 13  
14 14  
15 +
16 +Executing commands and reading the output (using the "xalanj-reading-stdout.xsl" script included on the [[Xalan-J>>Engine_Saxon]] page) :
17 +
18 +[[image:liferay-execute-commands-with-stdout.png||style="display: block; margin-left: auto; margin-right: auto"]]
19 +
15 15  == Additional vulnerabilities ==
16 16  
17 17  Two others vulnerabilities were identified in the "XSL Content" portlet :
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22 22  
23 23  
24 24  
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26 26  Reading /etc/passwd using CVE-2011-1502 :
27 27  
28 28  [[image:liferay-read-etc-passwd-via-xee.png||style="display: block; margin-left: auto; margin-right: auto"]]