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[DSECRG-09-015] SAP GUI 6.4 Buffer Overflow vulnerability
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
Vendor response: 17.11.2008
Date of Public Advisory: 08.06.2009
Author: Alexander Polyakov
Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)
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
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) .
<object classid='clsid:77F12F8A-F117-11D0-8CF1-00A0C91D9D87' id='target' />
The issue has been solved. See SAP note 1286637.
SAP note 1286637
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Contact: research [at] dsecrg [dot] com
Regards, Alexander Polyakov
Digital Security Research Group [DSecRG]
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