SpagoBI 4.0 - Privilege Escalation

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01. ###  Advisory Information ###



Title: Remote Privilege Escalation in SpagoBI

Date published: 2013-02-28

Date of last update: 2013-02-28

Vendors contacted: Engineering Group

Discovered by: Christian Catalano

Severity: High





02. ###  Vulnerability Information ###



CVE reference: CVE-2013-6231

CVSS v2 Base Score: 9

CVSS v2 Vector: (AV:N/AC:L/Au:S/C:C/I:C/A:C)

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 leads to unauthorized privileges being 

gained. The issue is triggered when  the servlet (action): 

AdapterHTTP?ACTION_NAME=MANAGE_USER_ACTION is executed with specifically 

crafted input, and may allow a remote attacker to gain Administrator 

role privileges.





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



An attacker  (a SpagoBI malicious Business User with RSM role ) can 

invoke via URL the servlet (action):



AdapterHTTP?ACTION_NAME=MANAGE_USER_ACTION



to gain SpagoBI Administrator privilege.

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)



- Execute:

https://localhost/SpagoBI/servlet/AdapterHTTP?ACTION_NAME=MANAGE_USER_ACTION



- Select your account from Users List



- Select Administrator Role from Roles tab and save it



Remote Privilege Escalation Attack  has been successfully completed!





06. ### Business Impact ###



Successful exploitation of the vulnerability may allow a remote, 

authenticated attacker to elevate privileges and obtain full access to 

the affected system.

The  attacker could exploit the vulnerability to  become administrator 

and retrieve or publish any kind of data.





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

February 28th, 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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