ZDI-10-290: SAP NetWeaver Business Client SapThemeRepository ActiveX Control Remote Code Execution Vulnerability

[ZDI Disclosures <zdi-disclosures () tippingpoint com>]

ZDI-10-290: SAP NetWeaver Business Client SapThemeRepository ActiveX Control Remote Code Execution Vulnerability

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

December 14, 2010

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

-- Affected Vendors:
SAP

-- Affected Products:
SAP NetWeaver

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10737.
For further product information on the TippingPoint IPS, visit:

    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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