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Category:   Application (Security)  >   Trend Micro Internet Security Vendors:   Trend Micro
Trend Micro Internet Security Pro Memory Access Error in 'UfPBCtrl.dll' ActiveX Control Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1024364
SecurityTracker URL:
CVE Reference:   CVE-2010-3189   (Links to External Site)
Updated:  Sep 2 2010
Original Entry Date:  Aug 25 2010
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2010
Description:   A vulnerability was reported in Trend Micro Internet Security Pro. 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 trigger a memory access error in the extSetOwner() function of the UfPBCtrl.dll ActiveX control and execute arbitrary code on the target system. The code will run with the privileges of the target user.

Andrea Micalizzi aka rgod reported this vulnerability via TippingPoint's Zero Day Initiative (ZDI).

Impact:   A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a hot fix.

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error

Message History:   None.

 Source Message Contents

Subject:  ZDI-10-165: Trend Micro Internet Security Pro 2010 ActiveX extSetOwner Remote Code Execution Vulnerability

ZDI-10-165: Trend Micro Internet Security Pro 2010 ActiveX extSetOwner Remote Code Execution Vulnerability
August 25, 2010

-- CVSS:
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)

-- Affected Vendors:
Trend Micro

-- Affected Products:
Trend Micro Internet Security Pro 2010

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10289. 
For further product information on the TippingPoint IPS, visit:

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Trend Micro Internet Security Pro. User
interaction is required to exploit this vulnerability in that the target
must visit a malicious page or open a malicious file.

The specific flaw exists within the UfPBCtrl.dll ActiveX control. The
extSetOwner function accepts a parameter and assumes it is an
initialized pointer. By specifying an invalid address, an attacker can
force the process to call into a controlled memory region. This can be
exploited to execute remote code under the context of the user invoking
the browser.

-- Vendor Response:
Trend Micro has issued an update to correct this vulnerability. More
details can be found at:

-- Disclosure Timeline:
2010-07-20 - Vulnerability reported to vendor
2010-08-25 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Andrea Micalizzi aka rgod

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, 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. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint 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, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

Follow the ZDI on Twitter:

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