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Category:   Application (Generic)  >   Adobe Download Manager Vendors:   Adobe Systems Incorporated
Adobe Download Manager Buffer Overflow in 'gp.ocx' ActiveX Control Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1023908
SecurityTracker URL:
CVE Reference:   CVE-2010-1278   (Links to External Site)
Date:  Apr 21 2010
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Adobe Reader 9.2 and prior versions
Description:   A vulnerability was reported in Adobe Download Manager. 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 buffer overflow in the 'gp.ocx' ActiveX control and execute arbitrary code on the target system. The code will run with the privileges of the target user.

The CLSID of of the vulnerable control is: E2883E8F-472F-4fb0-9522-AC9BF37916A7

The vendor was notified on December 4, 2009.

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 fix (as part of Adobe Reader 9.3 and Adobe Acrobat 9.3).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents

Subject:  ZDI-10-077: Adobe Download Manager Atlcom.get_atlcom ActiveX Control Remote Code Execution Vulnerability

ZDI-10-077: Adobe Download Manager Atlcom.get_atlcom ActiveX Control Remote Code Execution Vulnerability
April 21, 2010

-- CVE ID:

-- Affected Vendors:

-- Affected Products:
Adobe Download Manager

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9479. 
For further product information on the TippingPoint IPS, visit:

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of the Adobe Download Manager. User interaction
is required to exploit this vulnerability in that the target must visit
a malicious page.

The specific flaw exists within the gp.ocx ActiveX control. This control
has a CLSID of {E2883E8F-472F-4fb0-9522-AC9BF37916A7} and the ProgID
Atlcom.get_atlcom. Upon initialization this control copies the values
from two parameters into a fixed length buffer. If supplied with large
enough values this can lead lead to a buffer overflow that can be
leveraged to execute arbitrary code under the context of the user
running the browser.

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

-- Disclosure Timeline:
2009-12-04 - Vulnerability reported to vendor
2010-04-21 - 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:

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