TippingPoint Zero Day Initiative

Adobe Download Manager Atlcom.get_atlcom ActiveX Control Remote Code Execution Vulnerability

ZDI-10-077: April 21st, 2010


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9479. For further product information on the TippingPoint IPS:

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


This vulnerability was discovered by:
    Andrea Micalizzi aka rgod