====================================================================== Secunia Research 15/04/2009 - SAP GUI KWEdit ActiveX Control "SaveDocumentAs()" Insecure Method - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Vendor's Description of Software.....................................3 Description of Vulnerability.........................................4 Solution.............................................................5 Time Table...........................................................6 Credits..............................................................7 References...........................................................8 About Secunia........................................................9 Verification........................................................10 ====================================================================== 1) Affected Software * SAP GUI 6.40 Patch 29 (KWEDIT.DLL version 6400.1.1.41) * SAP GUI 7.10 Patch 5 (KWEDIT.DLL version 7100.1.1.43) NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Highly critical Impact: System compromise Where: Remote ====================================================================== 3) Vendor's Description of Software "SAP GUI is SAP's universal client for accessing SAP functionality in SAP applications such as - SAP ERP, SAP Business Suite (SAP CRM, SAP SCM and SAP PLM), SAP Business Intelligence and so on. SAP GUI functions like a browser. It gets information from the SAP server like what, where, when and how, to display contents in its window.". Product Link: https://www.sdn.sap.com/irj/sdn/sap-gui ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a security issue in SAP GUI, which can be exploited by malicious people to gain knowledge of sensitive information, corrupt files, or compromise a user's system. The problem is that the bundled KWEdit ActiveX control (KWEDIT.DLL) provides the insecure method "SaveDocumentAs()", which saves an HTML document to a specified location. This can be exploited in combination with e.g. the "OpenDocument()" method to disclose the contents of files or to execute arbitrary code on a user's system. ====================================================================== 5) Solution Update to the latest versions, which reportedly set the kill-bit for the ActiveX control. ====================================================================== 6) Time Table 28/11/2008 - Vendor notified. 28/11/2008 - Vendor response. 14/01/2009 - Vendor provides patch for testing. 16/01/2009 - Vendor informed that patch prevents exploitation. 02/03/2009 - Status update requested. 02/03/2009 - Vendor provides status update. 15/04/2009 - Public disclosure. ====================================================================== 7) Credits Discovered by Carsten Eiram, Secunia Research. ====================================================================== 8) References SAP Note 1294913: https://service.sap.com/sap/support/notes/1294913 The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2008-4830 for the vulnerability. ====================================================================== 9) About Secunia Secunia offers vulnerability management solutions to corporate customers with verified and reliable vulnerability intelligence relevant to their specific system configuration: http://secunia.com/advisories/business_solutions/ Secunia also provides a publicly accessible and comprehensive advisory database as a service to the security community and private individuals, who are interested in or concerned about IT-security. http://secunia.com/advisories/ Secunia believes that it is important to support the community and to do active vulnerability research in order to aid improving the security and reliability of software in general: http://secunia.com/secunia_research/ Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: http://secunia.com/corporate/jobs/ Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/advisories/mailing_lists/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2008-56/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================