SAP Cfolders Multiple Stored XSS Vulnerabilies
Digital Security Research Group [DSecRG] Advisory #DSECRG-09-014
Original advisory: http://dsecrg.com/pages/vul/show.php?id=114
Application: SAP Cfolders (included in: SAP SRM, SAP ECC,
SAP Knowledge Management and SAP NetWeaver cRooms)
Vendor URL: http://SAP.com
Bugs: Multiple Stored XSS
Risk: Hight
Exploits: YES
Reported: 04.12.2008
Vendor response: 05.12.2008
Vulnerability patched: 15.12.2008
Date of Public Advisory: 21.04.2009
Reference: SAP note 1284360
Author: Digital Security Research Group [DSecRG]
(research [at] dsec [dot] ru)
Description
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cFolders (Collaboration Folders) is the SAP web-based application for
collaborative sharing of information.
cFolders is part of a suite of applications powered by SAP NetWeaver that
integrate project management,
knowledge management and resource management in collaborative inter-enterprise
and intra-enterprise
environments.
cFolders is integrated to SAP ECC, SAP Product Lifecycle
Management (PLM), SAP Supplier Relationship Management (SRM), SAP Knowledge
Management and SAP
NetWeaver cRooms (collaboration rooms). Virtual teams can access, view online,
subscribe for changes, and
redline documents and product information. Partners and suppliers can interact
with cFolders in predefined
collaborative or competitive scenarios.
Details
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Multiple Stored XSS vulnerabilities found in SAP Cfolders engine. User which is
a business partner of
organization can steal Administrators cookie by inserting javascript into
CFolders system.
He can do this using 2 Stored XSS vulnerabilities.
SAP Server dont associate session identificators with users IP adress or with
any other additional data.
IT autentificate users Only by cookies. So any user which can steal
administrators cookie can use them to authentificate with administrator rights.
1. User can insert javascript code into site using link creation option
He can inject javascript code into LINK field on page
https://[site]/sap/bc/bsp/sap/cfx_rfc_ui/hyp_de_create.htm
example LINK value:
http://test.com"; onmouseover="alert(document.cookie)">
Then when administrator will browse for user folders script will execute.
2. Second XSS vulnerability found in document uploading area.
User can create a document with file name included javascript code.
example filename value:
aaaa"><script>alert()</script>.doc
To do this user must change file name in http request when sending a request
for file uploading.
So using this vulnerability user can steal cookie like he do in first example.
Fix Information
***************
The issue has been solved. See SAP note 1284360.
References:
***********
SAP note 1284360
https://service.sap.com/sap/support/notes/1284360
About
*****
Digital Security is leading IT security company in Russia, providing
information security consulting, audit and penetration testing services, risk
analysis and ISMS-related services and certification for ISO/IEC 27001:2005 and
PCI DSS standards. Digital Security Research Group focuses on web application
and database security problems with vulnerability reports, advisories and
whitepapers posted regularly on our website.
Contact: research [at] dsecrg [dot] com
http://www.dsecrg.com
http://www.dsec.ru