[DSECRG-11-002] (Internal DSECRG-00143) SAP Crystal Report Server 2008 scriptinghelpers.dll ActiveX component - Insecure methods

The component contains insecure methods by which you can overwrite any file in the OS, run the executable file, kill process, delete the file.

Application:            SAP Crystal Report Server 2008
Versions Affected:      SAP Crystal Report Server 2008
Vendor URL:             http://sap.com
Bugs:                   insecure methods
Exploits:               YES
Reported:               09.03.2010
Vendor response:        10.03.2010
Date of SAPNOTE Published: 8.10.2010
Date of Public Advisory:  14.01.2011
Authors:                Dmitry Chastuhin
                        Digital Security Research Group [DSecRG] (research [at] dsecrg [dot] com)

Description
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SAP Crystal Report Server 2008 contains a variety of features with which users can manage and share interactive reports and dashboards, as well as provide access to them via the Internet.

Details
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Insecure practices found in the library scriptinghelpers.dll. An attacker could construct a html-page containing a call Insecure functions.

1 Insecure method CreateTextFile. Perhaps as the creation and overwrite existing files.
Sample
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2 Insecure method LaunchProgram. Possible to run an executable file.



3 Insecure Method DeleteFile. Possible removal of any file in the OS.



4 Insecure method Kill. Perhaps the completion of any process, if we know the pid 


References
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http://dsecrg.com/pages/vul/show.php?id=302
http://www.sdn.sap.com/irj/sdn/index?rid=/webcontent/uuid/c05604f6-4eb3-2d10-eea7-ceb666083a6a
https://service.sap.com/sap/support/notes/1458309




Fix Information
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Solution to this issue is given in the 1458309 security note.

About
*****

Digital Security: 

Is one of the leading IT security companies in CEMEA, providing information security consulting, audit and penetration testing services, ERP and SAP security assessment, certification for ISO/IEC 27001:2005 and PCI DSS and PA DSS standards.

Digital Security Research Group:

International subdivision of Digital Security company focused on research and software development for securing business-critical systems like: enterprise applications (ERP,CRM,SRM), technology systems (SCADA, Smart Grid) and banking software. DSecRG developed new product "ERPSCAN security suite for SAP NetWeaver" and service "ERPSCAN Online" which can help customers to perform automated security assessments and compliance checks for SAP solutions.


Contact: research [at] dsecrg [dot] com
http://www.dsecrg.com
http://www.erpscan.com




Polyakov Alexandr. PCI QSA,PA-QSA
CTO Digital Security
Head of DSecRG
______________________
DIGITAL SECURITY
phone:  +7 812 703 1547
        +7 812 430 9130
e-mail: a.polyakov@dsec.ru  

www.dsec.ru
www.dsecrg.com www.dsecrg.ru
www.erpscan.com www.erpscan.ru
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