Security and Quality Rollup for .NET Framework (May 2017)

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


Synopsis :

The remote Windows host has a software framework installed that is
affected by a security feature bypass vulnerability.

Description :

The version of Microsoft .NET Framework installed on the remote
Windows host is missing a security update. It is, therefore, affected
by a security bypass vulnerability in the Microsoft .NET Framework and
.NET Core components due to a failure to completely validate
certificates. An unauthenticated, remote attacker can exploit this to
present a certificate that is marked invalid for a specific use, but
the component uses it for that purpose, resulting in a bypass of the
Enhanced Key Usage taggings.

See also :

http://www.nessus.org/u?891ed5ca
http://www.nessus.org/u?e3805e39

Solution :

Microsoft has released a set of patches for Microsoft .NET Framework
2.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, and 4.7

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N)
CVSS Temporal Score : 3.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Windows : Microsoft Bulletins

Nessus Plugin ID: 100056 ()

Bugtraq ID: 98117

CVE ID: CVE-2017-0248

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