====================================================================== Secunia Research 09/12/2008 - Microsoft Hierarchical FlexGrid Control Integer Overflows - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Description of Vulnerability.........................................3 Solution.............................................................4 Time Table...........................................................5 Credits..............................................................6 References...........................................................7 About Secunia........................................................8 Verification.........................................................9 ====================================================================== 1) Affected Software * Microsoft Hierarchical FlexGrid Control 6.0.88.4 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Highly critical Impact: System compromise Where: Remote ====================================================================== 3) Description of Vulnerability Secunia Research has discovered some vulnerabilities in Microsoft Hierarchical FlexGrid Control bundled with various products, which can be exploited by malicious people to compromise a user's system. The vulnerabilities are caused due to integer overflow errors in the ActiveX control (mshflxgd.ocx) when handling the "Rows" and "Cols" properties and the "ExpandAll()" and "CollapseAll()" methods. These can be exploited to corrupt memory. Successful exploitation allows execution of arbitrary code. ====================================================================== 4) Solution Apply patches from MS08-070. ====================================================================== 5) Time Table 28/08/2007 - Vendor notified. 28/08/2007 - Vendor response. 26/09/2007 - Additional information provided and status update requested. 26/09/2007 - Vendor informs that status update will be provided soon. 10/10/2007 - Vendor provides status update. 23/11/2007 - Status update requested. 24/11/2007 - Vendor provides status update. 15/08/2008 - Status update requested. 09/09/2008 - Status update requested. 26/09/2008 - Status update requested and vendor informed that advisory will be published in a week if no status update is provided. 29/09/2008 - Vendor provides status update. 31/10/2008 - Vendor provides status update (targeted for November). 07/11/2008 - Vendor provides status update (targeted for December). 05/12/2008 - Vendor provides status update (on track for December). 09/12/2008 - Vendor acknowledges that fix will be issued today. 09/12/2008 - Vendor publishes security bulletin. 09/12/2008 - Public disclosure. ====================================================================== 6) Credits Discovered by Carsten Eiram, Secunia Research. ====================================================================== 7) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2008-4254 for the vulnerability. MS08-070 (KB932349): http://www.microsoft.com/technet/security/Bulletin/MS08-070.mspx ====================================================================== 8) 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/ ====================================================================== 9) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2007-72/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================