This host is missing a critical security update according to Microsoft Bulletin MS09-056.

Successful exploitation will allow attacker to conduct spoofing attacks on the affected system. Impact Level: System

Run Windows Update and update the listed hotfixes or download and update mentioned hotfixes in the advisory from the below link. http://www.microsoft.com/technet/security/bulletin/ms09-056.mspx

- The issue is due to the Windows CryptoAPI incorrectly parsing a null terminator as the end of any values identified by an Object Identifier (OID) when processing ASN.1 information from X.509 certificates. - An integer overflow error in the Windows CryptoAPI when parsing ASN.1 object identifiers from X.509 certificates, which could allow an attacker to generate a malicious certificate that would be parsed incorrectly by the Windows CryptoAPI.

Micorsoft Windows 7 Microsoft Windows 2K Service Pack 4 and prior. Microsoft Windows XP Service Pack 3 and prior. Microsoft Windows 2K3 Service Pack 2 and prior. Microsoft Windows Vista Service Pack 1/2 and prior. Microsoft Windows Server 2008 Service Pack 1/2 and prior.

• http://support.microsoft.com/kb/974571
• http://www.microsoft.com/technet/security/bulletin/MS09-056.mspx
• http://www.vupen.com/english/advisories/2009/2891

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Updated on 2015-03-25