ZDI-06-014: Verisign I-Nav ActiveX Control Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-06-014.html May 10, 2006 -- CVE ID: CVE-2006-2273 -- Affected Vendor: Verisign -- Affected Products: i-Nav ActiveX Control -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since March 20, 2006 by Digital Vaccine protection filter ID 3995. 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 the Verisign i-Nav ActiveX control. User interaction is required to exploit this vulnerability in that the target must visit a malicious web page. The specific flaw exists within the "VUpdater.Install" ActiveX control which is used to provide native support for Internationalized Domain Names (IDNs) in Microsoft Internet Explorer, Microsoft Outlook and Microsoft Outlook Express. Due to the lack of verification on Microsoft Cabinet (.CAB) files from the "InstallProduct" routine, an attacker can specify an arbitrary executable to run under the context of the current user. -- Vendor Response: Verisign has addressed this issue in the latest version of the affected technology: http://www.idnnow.com -- Disclosure Timeline: 2006.03.20 - Digital Vaccine released to TippingPoint customers 2006.03.27 - Vulnerability reported to vendor 2006.05.10 - Public release of advisory -- Credit: This vulnerability was discovered by an anonymous researcher. -- About the Zero Day Initiative (ZDI): Established by TippingPoint, a division of 3Com, 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. 3Com does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, 3Com 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, 3Com provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product.