TippingPoint Zero Day Initiative

Verisign I-Nav ActiveX Control Code Execution Vulnerability

ZDI-06-014: May 10th, 2006


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 3995. For further product information on the TippingPoint IPS:

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 issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2006-03-27 - Vulnerability reported to vendor
    2006-05-10 - Coordinated public release of advisory


This vulnerability was discovered by: