Digital Security Research Group [DSecRG] Advisory #DSECRG-09-015 Original Advisory: http://dsecrg.com/pages/vul/show.php?id=115 Application: SAP GUI for Windows, EnjoySAP Versions Affected: Version 6.4 Vendor URL: http://SAP.com Bugs: Buffer Overflow Exploits: YES Reported: 13.11.2008 Vendor response: 17.11.2008 Date of Public Advisory: 08.06.2009 CVE-number: Author: Alexander Polyakov Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru) Description *********** SAP GUI for Windows version 6.4 contains ActiveX component SAPIrRfc which is vulnerable to Buffer overflow attack. file = sapirrfc.dll GUID = F6908F83-ADA6-11D0-87AA-00AA00198702 Details ******* Attacker can construct html page which will call vulnerable function "Accept" from ActiveX Object SAPIrRfc with long parameter. When user open this vulnerable page it will occur DOS (Example 1) or full remote control on target system (Example2 execute calc.exe aviable by request) . Example1: ********* Fix Information *************** The issue has been solved. See SAP note 1286637. References: *********** SAP note 1286637 https://service.sap.com/sap/support/notes/1286637 http://dsecrg.com/pages/vul/show.php?id=115 About ***** Digital Security is one of the leading IT security companies in CEMEA, 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 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 Regards, Alexander Polyakov Digital Security Research Group [DSecRG] ________________________________________ DIGITAL SECURITY tel/fax: +7(812)703-1547 tel: +7(812)430-9130 e-mail: research@dsecrg.com web: www.dsecrg.com ---------------------------------------- This message and any attachment are confidential and may be privileged or otherwise protected from disclosure. If you are not the intended recipient any use, distribution, copying or disclosure is strictly prohibited. If you have received this message in error, please notify the sender immediately either by telephone or by e-mail and delete this message and any attachment from your system. Correspondence via e-mail is for information purposes only. Digital Security neither makes nor accepts legally binding statements by e-mail unless otherwise agreed. ----------------------------------------