MS KB3123479: Deprecation of SHA-1 Hashing Algorithm for Microsoft Root Certificate Program

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote Windows host is missing an update that improves
cryptography and digital certificate handling.

Description :

The remote Windows host is missing Microsoft KB3123479, an update that
restricts the use of certificates with SHA1 hashes, this restriction
being limited to certificates issued under roots in the Microsoft root
certificate program. This update increases the difficulty of carrying
out some spoofing, phishing, and man-in-the-middle attacks.

See also :

http://technet.microsoft.com/en-us/security/advisory/3123479
http://www.nessus.org/u?c554f786
https://msdn.microsoft.com/en-us/library/ms537628(v=vs.85).aspx
http://support.microsoft.com/kb/3097617

Solution :

Microsoft has released a set of patches for Windows 7, 2008 R2, 8,
2012, 8.1, 2012 R2, and 10.

Risk factor :

Medium / CVSS Base Score : 4.0
(CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N)

Family: Windows

Nessus Plugin ID: 87875 ()

Bugtraq ID:

CVE ID:

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