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 -- About the Zero Day Initiative (ZDI): Established by TippingPoint, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. TippingPoint does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, TippingPoint provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, TippingPoint provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. Our vulnerability disclosure policy is available online at: http://www.zerodayinitiative.com/advisories/disclosure_policy/ Follow the ZDI on Twitter: http://twitter.com/thezdi