Microsoft Windows Object Packager Dialog Spoofing Vulnerability
Secunia Advisory: SA20717
Release Date: 2006-10-10
Last Update: 2006-10-11
Popularity: 7,797 views

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

OS:Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional

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CVE reference:CVE-2006-4692


Description:
Secunia Research has discovered a vulnerability in Microsoft Windows, which can be exploited by malicious people to conduct spoofing attacks.

The vulnerability is caused due to an input validation error in the Object Packager (packager.exe) in the handling of the "Command Line" property. This can be exploited to spoof the filename and the associated file type in the Packager security dialog by including a "/" slash character in the "Command Line" property.

Example:
cmd /c [shell command] /[file].txt

This can further be exploited to execute arbitrary shell commands on a user's system by tricking a user into opening and interacting with e.g. a malicious Rich Text document or Word document containing an embedded Package object in e.g. WordPad.

Solution:
Apply patches.

Microsoft Windows XP (with SP1 or SP2):
http://www.microsoft.com/downloads/de...=86c2b78e-53bf-4ddd-88f6-5d12c6d18c90

Microsoft Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=2ac72356-7772-41b6-b4a6-7215c89f7347

Microsoft Windows Server 2003 (with or without SP1):
http://www.microsoft.com/downloads/de...=e2f5b9f9-4481-44f9-9aef-1af0afae8319

Microsoft Windows Server 2003 for Itanium-based Systems (with or without SP1):
http://www.microsoft.com/downloads/de...=8c9a22a6-bd61-4fd4-9aa4-012d745046da

Microsoft Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=ec4f4f72-8467-4964-ad28-ed9ea7562e0b

Provided and/or discovered by:
Andreas Sandblad, Secunia Research.

Changelog:
2006-10-11: Added link to US-CERT. Added link to Secunia Research advisory.

Original Advisory:
MS06-065 (KB924496):
http://www.microsoft.com/technet/security/Bulletin/MS06-065.mspx

Secunia Research:
http://secunia.com/secunia_research/2006-54/

Other References:
US-CERT VU#703936:
http://www.kb.cert.org/vuls/id/703936


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