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SAP NetWeaver SPML Cross Site Request Forgery

SAP NetWeaver SPML Cross Site Request Forgery
Posted Nov 17, 2011
Authored by Sh2kerr

The SAP NetWeaver SPML service suffers from a cross site request forgery vulnerability.

tags | advisory, csrf
MD5 | 1004099fbc4c63a617fa5a0c2e4ce23a

SAP NetWeaver SPML Cross Site Request Forgery

Change Mirror Download


[DSECRG-11-040] SAP NetWeaver SPML - XML CSRF user creation

Attacker can create a new user in J2EE Engine using CSRF attack on SPML service.

Application: SAP NetWeaver
Versions Affected: SAP NetWeaver
Vendor URL: http://www.SAP.com
Bugs: CSRF
Reported: 14.03.2011
Vendor response: 15.03.2011
Date of Public Advisory: 11.11.2011
CVSS: 7.3
CVE-number:
Author: Alexandr Polyakov from DSecRG (research center of ERPScan)

Description
***********
Attacker can create a new user in J2EE Engine using CSRF attack on SPML service
Details
*******
SPML service can be used to make various actions including user management, role management etc.
Attacker can generate HTTP page with XML call to SPML service and send a link to administrator.
Example:
******
Working exploit is available in commercial scanner ERPScan Security Scanner for SAP (http://erpscan.com)

References
**********
http://erpscan.com/advisories/dsecrg-11-040-sap-netweaver-spml-xml-csrf-user-creation/
http://www.sdn.sap.com/irj/sdn/index?rid=/webcontent/uuid/c05604f6-4eb3-2d10-eea7-ceb666083a6a
https://service.sap.com/sap/support/notes/1616058
http://erpscan.com/wp-content/uploads/2011/08/A-crushing-blow-at-the-heart-SAP-J2EE-engine_whitepaper.pdf





Fix Information
*************
Solution to this issue is given in the SAP Security Note 1616058


About DSecRG
*******
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 integrates in ERPScan Security Scanner. Being on the top edge of ERP and SAP security DSecRG research helps to improve a quality of ERPScan consulting services and protects you from the latest threads.
Contact: research [at] dsecrg [dot] com
http://www.dsecrg.com

About ERPScan
*******
ERPScan is an innovative company engaged in the research of ERP security and develops products for ERP system security assessment. Apart from this the company renders consulting services for secure configuration, development and implementation of ERP systems, and conducts comprehensive assessments and penetration testing of custom solutions.
Our flagship products are "ERPScan Security Scanner for SAP" and service "ERPScan Online" 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






Polyakov Alexander
CTO ERPScan
Head of DSecRG
______________________
phone: +7 812 703 1547
+7 812 430 9130
e-mail: a.polyakov@erpscan.com

www.erpscan.com
www.dsecrg.com


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