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Category:   Application (Generic)  >   VeriSign i-Nav Vendors:   VeriSign
VeriSign i-Nav ActiveX Plugin CAB Validation Flaw Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1016059
SecurityTracker URL:
CVE Reference:   CVE-2006-2273   (Links to External Site)
Date:  May 10 2006
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in VeriSign i-Nav. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted HTML that, when loaded by the target user, will execute arbitrary code on the target user's system. The code will run with the privileges of the target user.

The 'VUpdater.Install' ActiveX control does not properly validate Microsoft Cabinet ('.cab') files. As a result, a remote user can specify an arbitrary executable.

The vendor was notified on March 27, 2006.

TippingPoint disclosed this vulnerability.

The original advisory is available at:

Impact:   A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system with the privileges of the target user.
Solution:   The vendor has issued a fixed version, available at:

Vendor URL: (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents

Subject:  [Full-disclosure] ZDI-06-014: Verisign I-Nav ActiveX Control Code

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.

Full-Disclosure - We believe in it.
Hosted and sponsored by Secunia -


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