BID:9510

Microsoft Windows Shell CLSID File Extension Misrepresentation Vulnerability

Info

Microsoft Windows Shell CLSID File Extension Misrepresentation Vulnerability

Bugtraq ID:	9510
Class:	Design Error
CVE:	CVE-2004-0420
Remote:	Yes
Local:	No
Published:	Jan 27 2004 12:00AM
Updated:	Jul 12 2009 02:06AM
Credit:	Discovery of this issue is credited to "[email protected]" <[email protected]>.
Vulnerable:	Microsoft Windows XP Professional SP1 Microsoft Windows XP Professional Microsoft Windows XP Home SP1 Microsoft Windows XP Home Microsoft Windows XP 64-bit Edition Version 2003 SP1 Microsoft Windows XP 64-bit Edition Version 2003 Microsoft Windows XP 64-bit Edition SP1 Microsoft Windows XP 64-bit Edition Microsoft Windows Server 2003 Web Edition Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Enterprise Edition Itanium 0 Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Datacenter Edition Itanium 0 Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows NT Workstation 4.0 SP6a Microsoft Windows NT Workstation 4.0 SP6 Microsoft Windows NT Workstation 4.0 SP5 Microsoft Windows NT Workstation 4.0 SP4 Microsoft Windows NT Workstation 4.0 SP3 Microsoft Windows NT Workstation 4.0 SP2 Microsoft Windows NT Workstation 4.0 SP1 Microsoft Windows NT Workstation 4.0 Microsoft Windows NT Terminal Server 4.0 SP6 Microsoft Windows NT Terminal Server 4.0 SP5 Microsoft Windows NT Terminal Server 4.0 SP4 Microsoft Windows NT Terminal Server 4.0 SP3 Microsoft Windows NT Terminal Server 4.0 SP2 Microsoft Windows NT Terminal Server 4.0 SP1 Microsoft Windows NT Terminal Server 4.0 Microsoft Windows NT Server 4.0 SP6a + Avaya DefinityOne Media Servers + Avaya DefinityOne Media Servers + Avaya IP600 Media Servers + Avaya IP600 Media Servers + Avaya S3400 Message Application Server 0 + Avaya S8100 Media Servers 0 + Avaya S8100 Media Servers 0 Microsoft Windows NT Server 4.0 SP6 Microsoft Windows NT Server 4.0 SP5 Microsoft Windows NT Server 4.0 SP4 Microsoft Windows NT Server 4.0 SP3 Microsoft Windows NT Server 4.0 SP2 Microsoft Windows NT Server 4.0 SP1 Microsoft Windows NT Server 4.0 Microsoft Windows NT Enterprise Server 4.0 SP6a Microsoft Windows NT Enterprise Server 4.0 SP6 Microsoft Windows NT Enterprise Server 4.0 SP5 Microsoft Windows NT Enterprise Server 4.0 SP4 Microsoft Windows NT Enterprise Server 4.0 SP3 Microsoft Windows NT Enterprise Server 4.0 SP2 Microsoft Windows NT Enterprise Server 4.0 SP1 Microsoft Windows NT Enterprise Server 4.0 Microsoft Windows ME Microsoft Windows 98SE Microsoft Windows 98 Microsoft Windows 2000 Server SP4 Microsoft Windows 2000 Server SP3 Microsoft Windows 2000 Server SP2 Microsoft Windows 2000 Server SP1 Microsoft Windows 2000 Server + Avaya DefinityOne Media Servers + Avaya IP600 Media Servers + Avaya S3400 Message Application Server 0 + Avaya S8100 Media Servers 0 Microsoft Windows 2000 Professional SP4 Microsoft Windows 2000 Professional SP3 Microsoft Windows 2000 Professional SP2 Microsoft Windows 2000 Professional SP1 Microsoft Windows 2000 Professional Microsoft Windows 2000 Datacenter Server SP4 Microsoft Windows 2000 Datacenter Server SP3 Microsoft Windows 2000 Datacenter Server SP2 Microsoft Windows 2000 Datacenter Server SP1 Microsoft Windows 2000 Datacenter Server Microsoft Windows 2000 Advanced Server SP4 Microsoft Windows 2000 Advanced Server SP3 Microsoft Windows 2000 Advanced Server SP2 Microsoft Windows 2000 Advanced Server SP1 Microsoft Windows 2000 Advanced Server Microsoft Internet Explorer 6.0 SP1 Microsoft Internet Explorer 6.0 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services - Microsoft Windows 2000 Terminal Services - Microsoft Windows 2000 Terminal Services - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows 98SE - Microsoft Windows 98SE - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a + Microsoft Windows Server 2003 Datacenter Edition + Microsoft Windows Server 2003 Datacenter Edition + Microsoft Windows Server 2003 Datacenter Edition + Microsoft Windows Server 2003 Datacenter Edition Itanium 0 + Microsoft Windows Server 2003 Datacenter Edition Itanium 0 + Microsoft Windows Server 2003 Enterprise Edition + Microsoft Windows Server 2003 Enterprise Edition + Microsoft Windows Server 2003 Enterprise Edition + Microsoft Windows Server 2003 Enterprise Edition Itanium 0 + Microsoft Windows Server 2003 Enterprise Edition Itanium 0 + Microsoft Windows Server 2003 Enterprise Edition Itanium 0 + Microsoft Windows Server 2003 Standard Edition + Microsoft Windows Server 2003 Standard Edition + Microsoft Windows Server 2003 Standard Edition + Microsoft Windows Server 2003 Web Edition + Microsoft Windows Server 2003 Web Edition + Microsoft Windows Server 2003 Web Edition + Microsoft Windows XP Home + Microsoft Windows XP Home + Microsoft Windows XP Home + Microsoft Windows XP Professional + Microsoft Windows XP Professional + Microsoft Windows XP Professional Avaya S8100 Media Servers 0 + Microsoft Windows 2000 Server + Microsoft Windows NT Server 4.0 SP6a Avaya S3400 Message Application Server 0 + Microsoft Windows 2000 Server Avaya IP600 Media Servers Avaya DefinityOne Media Servers

Not Vulnerable:

Discussion

Microsoft Windows Shell CLSID File Extension Misrepresentation Vulnerability

A vulnerability has been reported in the Windows Shell that may allow files to be misrepresented to client users. The reported vulnerability involves specifying the CLSID for HTML applications in the name of a malicious file, followed by another file name and extension.

This issue could be exploited to disguise executable content in the form of an HTML application (HTA) file as a file type that may appear innocuous to a victim user, such as a media file. The file will appear to be of an attacker-specified type in the file download dialog presented to the user. The user may then download/open that file under the assumption it is safe, which could result in execution of malicious code on the client system in the context of the victim user. A proof-of-concept was released which creates an embedded web interface to play a media file, which could further convince the user to open the malicious HTML application.

Exploit / POC

Microsoft Windows Shell CLSID File Extension Misrepresentation Vulnerability

The following example was provided:

Content-Disposition: attachment; filename=malware.{3050f4d8-98B5-
11CF-BB82-00AA00BDCE0B}fun_ball_gites_pie_throw%2Empeg"

A proof-of-concept page was also published at the following location:

http://www.malware.com/gooroo.html

Solution / Fix

Microsoft Windows Shell CLSID File Extension Misrepresentation Vulnerability

Solution:
Microsoft has released a security bulletin and fixes for this issue.

Avaya has released an advisory that acknowledges this vulnerability for Avaya products. Avaya advise that customers follow the Microsoft recommendations to address this issue. Please see the referenced Avaya advisory at the following location for further details:
http://support.avaya.com/japple/css/japple?temp.groupID=128450&temp.selectedFamily=128451&temp.selectedProduct=154235&temp.selectedBucket=126655&temp.feedbackState=askForFeedback&temp.documentID=197331&PAGE=avaya.css.CSSLvl1Detail&executeTransaction=avaya.css.UsageUpdate()

Microsoft Windows 2000 Server SP2

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows 2000 Advanced Server SP2

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows NT Server 4.0 SP6a

Microsoft Security Update for Windows NT 4.0 Server (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=58906E66-064C -4358-9BF9-BC67B1F57BC5&displaylang=en

Microsoft Security Update for Windows NT4 with Active Desktop (KB839645) - English
http://www.microsoft.com/downloads/details.aspx?FamilyId=87096271-9716 -4a46-93f3-d41fcbdf989a&displaylang=en

Microsoft Windows Server 2003 Enterprise Edition Itanium 0

Microsoft Security Update for Windows Server 2003 64-Bit Edition and Windows XP 64-Bit Edition, Version 2003
http://www.microsoft.com/downloads/details.aspx?FamilyId=79CCA663-5B72 -4345-A3EE-404B466731BC&displaylang=en

Microsoft Windows NT Terminal Server 4.0 SP6

Microsoft Security Update for Windows NT 4.0, Terminal Server Edition (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=34035CE3-1998 -4693-8330-C4515A13407D&displaylang=en

Microsoft Windows Server 2003 Standard Edition

Microsoft Security Update for Windows Server 2003 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=41C7BB26-3500 -4492-A447-33440C404E4F&displaylang=en

Microsoft Windows XP Professional

Microsoft Security Update for Windows XP (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=C3365B8E-666B -4C82-A9ED-FC0F84F107BA&displaylang=en

Microsoft Windows NT Workstation 4.0 SP6a

Microsoft Security Update for Windows NT Workstation 4.0 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=53F0C9C1-D72F -48E8-8F70-B29A70A618E2&displaylang=en

Microsoft Security Update for Windows NT4 with Active Desktop (KB839645) - English
http://www.microsoft.com/downloads/details.aspx?FamilyId=87096271-9716 -4a46-93f3-d41fcbdf989a&displaylang=en

Microsoft Windows XP 64-bit Edition SP1

Microsoft Security Update for Windows XP 64-bit Edition (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=3FEE07F5-9E31 -481E-9F89-2549F51147AF&displaylang=en

Microsoft Windows 2000 Advanced Server SP4

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows 2000 Professional SP3

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows Server 2003 Enterprise Edition

Microsoft Security Update for Windows Server 2003 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=41C7BB26-3500 -4492-A447-33440C404E4F&displaylang=en

Microsoft Windows 2000 Professional SP2

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows 2000 Datacenter Server SP4

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows Server 2003 Web Edition

Microsoft Security Update for Windows Server 2003 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=41C7BB26-3500 -4492-A447-33440C404E4F&displaylang=en

Microsoft Windows 2000 Advanced Server SP3

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows XP Home

Microsoft Security Update for Windows XP (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=C3365B8E-666B -4C82-A9ED-FC0F84F107BA&displaylang=en

Microsoft Windows XP Home SP1

Microsoft Security Update for Windows XP (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=C3365B8E-666B -4C82-A9ED-FC0F84F107BA&displaylang=en

Microsoft Windows XP 64-bit Edition Version 2003 SP1

Microsoft Security Update for Windows Server 2003 64-Bit Edition and Windows XP 64-Bit Edition, Version 2003
http://www.microsoft.com/downloads/details.aspx?FamilyId=79CCA663-5B72 -4345-A3EE-404B466731BC&displaylang=en

Microsoft Windows 2000 Datacenter Server SP3

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows 2000 Server SP3

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows XP 64-bit Edition Version 2003

Microsoft Security Update for Windows Server 2003 64-Bit Edition and Windows XP 64-Bit Edition, Version 2003
http://www.microsoft.com/downloads/details.aspx?FamilyId=79CCA663-5B72 -4345-A3EE-404B466731BC&displaylang=en

Microsoft Windows NT Enterprise Server 4.0 SP6a

Microsoft Security Update for Windows NT 4.0 Server (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=58906E66-064C -4358-9BF9-BC67B1F57BC5&displaylang=en

Microsoft Security Update for Windows NT4 with Active Desktop (KB839645) - English
http://www.microsoft.com/downloads/details.aspx?FamilyId=87096271-9716 -4a46-93f3-d41fcbdf989a&displaylang=en

Microsoft Windows 2000 Datacenter Server SP2

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows 2000 Server SP4

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows 2000 Professional SP4

Microsoft Security Update for Windows 2000 (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=397BE12B-A026 -41A6-8E98-B4027BC6A110&displaylang=en

Microsoft Windows XP Professional SP1

Microsoft Security Update for Windows XP (KB839645)
http://www.microsoft.com/downloads/details.aspx?FamilyId=C3365B8E-666B -4C82-A9ED-FC0F84F107BA&displaylang=en

References

Microsoft Windows Shell CLSID File Extension Misrepresentation Vulnerability

References:

Microsoft Security Bulletin MS04-024 (Microsoft)
Technical Cyber Security Alert TA04-196A (CERT/CC)
Vulnerability Note VU#106324 (CERT/CC)
GOOROO CROSSING: File Spoofing Internet Explorer 6 ("[email protected]" <[email protected]>)