AusCERT - ESB-2010.1151 - [Win] SAP NetWeaver: Execute arbitrary code/commands

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ESB-2010.1151 - [Win] SAP NetWeaver: Execute arbitrary code/commands - Remote with user interaction
Date: 15 December 2010

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.1151
         SAP NetWeaver Business Client SapThemeRepository ActiveX
                Control Remote Code Execution Vulnerability
                             15 December 2010

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           SAP NetWeaver
Publisher:         Zero Day Initiative
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade

Original Bulletin: 
   http://www.zerodayinitiative.com/advisories/ZDI-10-290/

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SAP NetWeaver Business Client SapThemeRepository ActiveX Control Remote Code 
Execution Vulnerability
ZDI-10-290: December 14th, 2010
CVSS Score

      9, (AV:N/AC:L/Au:N/C:P/I:P/A:C) 

Affected Vendors

      SAP

Affected Products

      NetWeaver

TippingPoint IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital 
Vaccine protection filter ID 10737. For further product information on the 
TippingPoint IPS:

      http://www.tippingpoint.com 

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on 
vulnerable installations of SAP NetWeaver Business Client. User interaction is 
required to exploit this vulnerability in that the target must visit a 
malicious page or open a malicious file.

The specific flaw exists within the Load and LoadTheme methods of the 
SapThemeRepository ActiveX control (sapwdpcd.dll) implemented by SAP NetWeaver 
Business Client. Due to a failure in bounds checking, a user-supplied parameter 
supplied to the vulnerable methods can overflow a stack buffer resulting in 
arbitrary code execution under the context of the user running the browser.

Vendor Response

SAP has issued an update to correct this vulnerability. More details can be 
found at:

      https://service.sap.com/sap/support/notes/1519966

Disclosure Timeline

      2010-09-30 - Vulnerability reported to vendor
      2010-12-14 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:

      Alexandr Polyakov, Alexey Sintsov from Digital Security Research Group

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