[原文]The InstallProduct routine in the Verisign VUpdater.Install (aka i-Nav) ActiveX control does not verify Microsoft Cabinet (.CAB) files, which allows remote attackers to run an arbitrary executable file.
ZDI-06-014 - The Verisign i-Nav ActiveX Control suffers from a vulnerability that allows remote attackers to execute arbitrary code on vulnerable installations. User interaction is required to exploit this vulnerability in that the target must visit a malicious web page.
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
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.
i-NAV contains a flaw that may allow a malicious user to execute arbitrary code. The issue is triggered due an input validation error within the "InstallProduct" routine of the "VUpdater.Install" ActiveX control. It is possible that the flaw may allow code execution of arbitrary files within ".CAB" archives resulting in a loss of integrity.
Upgrade to the latest version (2006-05-10) or higher, as it has been reported to fix this vulnerability. Note that this flaw was fixed in the 2006-05-10 release without a change in version number. An upgrade is required as there are no known workarounds.
An anonymous researcher is credited with the discovery of this issue.
Verisign i-Nav ActiveX control is prone to a buffer-overflow vulnerability. The software fails to perform sufficient bounds-checking of user-supplied input before copying it to an insufficiently sized memory buffer.
Invoking the object from a malicious website or HTML email may trigger the condition. If the vulnerability were successfully exploited, this would corrupt process memory, resulting in arbitrary code execution. Arbitrary code would be executed in the context of the client application using the affected ActiveX control.
Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: firstname.lastname@example.org
Reportedly, the vendor has released updated versions of the affected software to address this issue. Users of affected packages should contact the vendor for further information.