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Microsoft Agent ActiveX Control URL Handling Buffer Overflow Vulnerability Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA26753  
Release Date: 2007-09-11
Last Update: 2007-09-12

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

OS:Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server


CVE reference:CVE-2007-3040 (Secunia mirror)

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Description:
A vulnerability has been reported in Microsoft Windows 2000, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the Microsoft Agent ActiveX control (agentdpv.dll) when handling specially crafted URLs passed as argument to a certain unspecified method. This can be exploited to cause a stack-based buffer overflow when a user e.g. visits a malicious website.

Successful exploitation allows execution of arbitrary code.

Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.

Solution:
Apply patches.

Microsoft Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=7cd248ed-d154-4dce-89ef-ceefd2700965

Provided and/or discovered by:
Independently discovered by:
* Assurent Secure Technologies
* An anonymous researcher via iDefense.

The vendor also credits Yamata Li, Palo Alto Networks.

Changelog:
2007-09-12: Added additional links and updated advisory based on additional information from iDefense Labs and Assurent Secure Technologies.

Original Advisory:
MS07-051 (KB938827):
http://www.microsoft.com/technet/security/Bulletin/MS07-051.mspx

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=592

Assurent Secure Technoloties (via Full-Disclosure):
http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065713.html

Other References:
US-CERT VU#716872:
http://www.kb.cert.org/vuls/id/716872

Extended Solution:
The "Extended Solution" section is available for Secunia customers only. Request a trial and get access to the Secunia Customer Area and Extended Secunia advisories.



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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