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AUSCERT External Security Bulletin Redistribution
ESB-2008.0122 -- [Win]
Yahoo! Music Jukebox multiple vulnerabilities
8 February 2008
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AusCERT Security Bulletin Summary
---------------------------------
Product: Yahoo! Music Jukebox YMP Datagrid ActiveX control
Yahoo! Music Jukebox Yahoo! MediaGrid ActiveX control
Publisher: US-CERT
Operating System: Windows
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2008-0623 CVE-2008-0624 CVE-2008-0625
Original Bulletin: http://www.kb.cert.org/vuls/id/101676
http://www.kb.cert.org/vuls/id/340860
Comment: This bulletin contains two (2) US-CERT Vulnerability Notes
Revision History: February 8 2008: Added CVEs
February 6 2008: Initial Release
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US-CERT Vulnerability Note VU#101676
Yahoo! Music Jukebox YMP Datagrid ActiveX control stack buffer overflows
Overview
The Yahoo! Music Jukebox YMP Datagrid ActiveX control contains
multiple stack buffer overflows, which can allow a remote,
unauthenticated attacker to execute arbitrary code on a vulnerable
system.
I. Description
Yahoo! Music Jukebox is a music player for Microsoft Windows, which
includes multiple ActiveX controls. The YMP Datagrid ActiveX control,
which is provided by datagrid.dll, contains multiple stack buffer
overflows. For example, the AddImage() and AddButton() methods are
vulnerable.
II. Impact
By convincing a user to view a specially crafted HTML document (e.g.,
a web page or an HTML email message or attachment), a remote,
unauthenticated attacker may be able to execute arbitrary code with
the privileges of the user on a vulnerable system.
III. Solution
We are currently unaware of a practical solution to this problem.
Please consider the following workarounds:
Disable the YMP Datagrid ActiveX control in Internet Explorer
The vulnerable ActiveX control can be disabled in Internet Explorer by
setting the kill bit for the following CLSID:
{5F810AFC-BB5F-4416-BE63-E01DD117BD6C}
More information about how to set the kill bit is available in
Microsoft Support Document 240797. Alternatively, the following
text can be saved as a .REG file and imported to set the kill bit for
this control:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX
Compatibility\{5F810AFC-BB5F-4416-BE63-E01DD117BD6C}]
"Compatibility Flags"=dword:00000400
Disable ActiveX
Disabling ActiveX controls in the Internet Zone (or any zone used by
an attacker) appears to prevent exploitation of this and other ActiveX
vulnerabilities. Instructions for disabling ActiveX in the Internet
Zone can be found in the "Securing Your Web Browser" document.
Systems Affected
Vendor Status Date Updated
Yahoo, Inc. Vulnerable 5-Feb-2008
References
http://www.cert.org/tech_tips/securing_browser
http://secunia.com/advisories/28757/
http://support.microsoft.com/kb/240797
Credit
This vulnerability was publicly disclosed by Krystian Kloskowski
This document was written by Will Dormann.
Other Information
Date Public 02/02/2008
Date First Published 02/05/2008 10:38:09 AM
Date Last Updated 02/05/2008
CERT Advisory
CVE Name
US-CERT Technical Alerts
Metric 21.42
Document Revision 11
US-CERT Vulnerability Note VU#340860
Yahoo! Music Jukebox Yahoo! MediaGrid ActiveX control stack buffer overflow
Overview
The Yahoo! Music Jukebox Yahoo! MediaGrid ActiveX control contains a
stack buffer overflow, which can allow a remote, unauthenticated
attacker to execute arbitrary code on a vulnerable system.
I. Description
Yahoo! Music Jukebox is a music player for Microsoft Windows, which
includes multiple ActiveX controls. The Yahoo! MediaGrid ActiveX
control, which is provided by mediagrid.dll, contains a stack buffer
overflow in the AddBitmap() method.
II. Impact
By convincing a user to view a specially crafted HTML document (e.g.,
a web page or an HTML email message or attachment), a remote,
unauthenticated attacker may be able to execute arbitrary code with
the privileges of the user on a vulnerable system.
III. Solution
We are currently unaware of a practical solution to this problem.
Disable the Yahoo! MediaGrid ActiveX control in Internet Explorer
The vulnerable ActiveX control can be disabled in Internet Explorer by
setting the kill bit for the following CLSID:
{22FD7C0A-850C-4A53-9821-0B0915C96139}
More information about how to set the kill bit is available in
Microsoft Support Document 240797. Alternatively, the following
text can be saved as a .REG file and imported to set the kill bit for
this control:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX
Compatibility\{22FD7C0A-850C-4A53-9821-0B0915C96139}]
"Compatibility Flags"=dword:00000400
Disable ActiveX
Disabling ActiveX controls in the Internet Zone (or any zone used by
an attacker) appears to prevent exploitation of this and other ActiveX
vulnerabilities. Instructions for disabling ActiveX in the Internet
Zone can be found in the "Securing Your Web Browser" document.
Systems Affected
Vendor Status Date Updated
Yahoo, Inc. Vulnerable 5-Feb-2008
References
http://www.cert.org/tech_tips/securing_browser
http://secunia.com/advisories/28757/
http://support.microsoft.com/kb/240797
Credit
This vulnerability was publicly disclosed by Elazar Broad.
This document was written by Will Dormann.
Other Information
Date Public 02/03/2008
Date First Published 02/05/2008 10:54:42 AM
Date Last Updated 02/05/2008
CERT Advisory
CVE Name
US-CERT Technical Alerts
Metric 21.42
Document Revision 6
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