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Message-ID: <5312361D.3070803@gmail.com>
Date: Sat, 01 Mar 2014 20:33:49 +0100
From: Christian Catalano <ch.catalano@...il.com>
To: OSVDB Mods <moderators@...db.org>, full-disclosure@...ts.grok.org.uk,
bugtraq@...urityfocus.com, Secunia Research <vuln@...unia.com>,
submit@...sec.com, submissions@...ketstormsecurity.com,
submit@...7day.com, vuldb@...urityfocus.com, submit@...ecurity.com
Subject: [CVE-2013-6234] XSS File Upload in SpagoBI v4.0
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01. ### Advisory Information ###
Title: XSS File Upload
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-2013-6234
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 may allow a remote attacker to execute
arbitrary code. This flaw exists because the application does not
restrict uploading for specific file types from Worksheet designer
function.
This may allow a remote attacker to upload arbitrary files (e.g. .html
for XSS) that would execute arbitrary script code in a user's browser
within the trust relationship between their browser and the server or
more easily conduct more serious attacks.
05. ### Technical Description / Proof of Concept Code ###
An attacker (a SpagoBI malicious user with a restricted account) can
upload a file from Worksheet designer function.
To reproduce the vulnerability follow the provided information and
steps below:
- Using a browser log on to SpagoBI with restricted account (e.g.
Business User Account)
- Go on: Worksheet designer function
- Click on: Image and Choose image
- Upload malicious file and save it
XSS Malicious File Upload Attack has been successfully completed!
More details about SpagoBI Worksheet Engine and Worksheet designer
http://wiki.spagobi.org/xwiki/bin/view/spagobi_server/Worksheet#HWorksheetoverview
(e.g. Malicious File: xss.html)
<!DOCTYPE html>
<html>
<head>
<script>
function myFunction()
{alert("XSS");}
</script>
</head>
<body>
<input type="button" onclick="myFunction()" value="Show alert box">
</body>
</html>
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 session hijacking, client-side phishing,
client-side external redirects or malware loads and client-side
manipulation of the vulnerable module context.
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 09th, 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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