Hey guys,

during a penatrationtest I have found an unknown persistent xss in liferay portal backend.

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#General Information#
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Manufacture description:
Liferay Portal is an enterprise-web-platform for the development of business solutions, which provides quick results and long-term values.


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#Details#
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·         Product:            Liferay Portal Enterprise Edition (6.2 EE SP13)
·         Affected versions :       All <= 6.2 EE SP13
·         Type of attack:        Persistent  Cross Site Scripting
·         Proof Of Concept:         Yes, 6.2 EE SP13
·         Authentication required:    Yes
·         Reason:           Missing input validation
·         Impact:             Injection of malicious  JavaScript code

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#PoC#
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You have to be authenticated in the administrator backend.
Here you have to browse to the control center:
- In configuration click on portal settings
- Select authentication
- Select ldap
- select add server
- input following code in server name

Value for ldap server name field:
Name_of_ldap_server<script>alert("XSS")</script>

The script is inserted to the configuration page persistent until the ldap server is deleted from database again.

Best regards / Mit freundlichen Grüßen

Tim Schughart
CEO | IT Security specialist



ProSec Networks
Website: http://www.prosec-networks.com <http://www.prosec-networks.com/>
E-Mail: info@prosec.networks.com <mailto:info@prosec.networks.com>
Phone: +49(0) 2621 9469 252

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