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Category:   OS (Microsoft)  >   Windows DLL (Any) Vendors:   Microsoft
Microsoft Windows Includes Some Invalid Comodo Certificates
SecurityTracker Alert ID:  1025248
SecurityTracker URL:  http://securitytracker.com/id/1025248
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Updated:  Jul 6 2011
Original Entry Date:  Mar 23 2011
Impact:   Modification of authentication information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): XP SP3, 2003 SP2, Vista SP2, 2008 SP2, 7 SP1, 2008 R2 SP1; and prior service packs
Description:   A vulnerability was reported in Microsoft Windows. A remote user may be able to spoof sites.

The operating system includes some invalid certificates. The vulnerability is due to the invalid certificates and not the operating system itself. Other browsers, applications, and operating systems are affected.

A partner of Comodo with Registration Authority capabilities suffered an internal security breach and the attacker caused seven certificates to be fraudulently issued. The certificates have since been revoked. However, with some applications and systems, a man-in-the-middle attack may prevent the application or system from contacting the relevant On-line Certificate Status Protocol (OSCP) system and determining that the certificate has been revoked.

The following common names are affected:

addons.mozilla.org
login.live.com
mail.google.com
www.google.com
login.yahoo.com
login.skype.com
global trustee

Microsoft reports that the following devices are also affected:

Windows Mobile 6.x
Windows Phone 7
Microsoft Kin
Zune HD 16GB, Zune HD 32GB, and Zune HD 64GB

Impact:   A remote user may be able to spoof sites.
Solution:   The vendor has issued a fix, available at:

http://support.microsoft.com/kb/2524375

The fix is also available via automatic update.

The vendor's advisory is available at:

http://www.microsoft.com/technet/security/advisory/2524375.mspx

Vendor URL:  www.microsoft.com/technet/security/advisory/2524375.mspx (Links to External Site)
Cause:   Configuration error

Message History:   None.


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