The host is installed with Microsoft Windows operating system and is prone to spoofing vulnerability. This NVT has been superseded by KB2641690 Which is addressed in NVT gb_ms_fraudulent_digital_cert_spoofing_vuln.nasl (OID:220.127.116.11.4.1.25618.104.22.1682403).
Successful exploitation will allow remote attackers to spoof content, perform phishing attacks or perform man-in-the-middle attacks against all Web browser users including users of Internet Explorer. Impact Level: System
Apply the Patch from below link, For updates refer to http://support.microsoft.com/kb/2607712
The flaw is due to an error when handling the fraudulent digital certificates issued by Comodo and it is not properly validating its identity.
Windows 7 Service Pack 1 and prior Windows XP Service Pack 3 and prior Windows Vista Service Pack 2 and prior Windows Server 2003 Service Pack 2 and prior Windows Server 2008 Service Pack 2 and prior