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             AUSCERT External Security Bulletin Redistribution

                          ESB-2006.0336 -- [Win]
        Verisign i-Nav ActiveX Control Code Execution Vulnerability
                                12 May 2006


        AusCERT Security Bulletin Summary

Product:           VeriSign i-Nav
Publisher:         TippingPoint
Operating System:  Windows
Impact:            Execute Arbitrary Code/Commands
Access:            Remote/Unauthenticated
CVE Names:         CVE-2006-2273

Original Bulletin: 

Comment: i-Nav is VeriSign's software to support internationalized
         domain names. Computers with i-Nav installed may be vulnerable
         to remote compromise when visiting malicious web sites.

- --------------------------BEGIN INCLUDED TEXT--------------------

ZDI-06-014: Verisign I-Nav ActiveX Control Code Execution Vulnerability
May 10, 2006

- -- CVE ID:

- -- Affected Vendor:

- -- 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:


- -- 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

- -- Vendor Response:
Verisign has addressed this issue in the latest version of the affected


- -- 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:


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.

- --------------------------END INCLUDED TEXT--------------------

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