MS15-055: Vulnerability in Schannel Could Allow Information Disclosure (3061518)

This script is Copyright (C) 2015-2017 Tenable Network Security, Inc.


Synopsis :

The remote Windows host is affected by an information disclosure
vulnerability.

Description :

The remote Windows host is affected by an information disclosure
vulnerability due to Secure Channel (Schannel) allowing the use of a
weak Diffie-Hellman ephemeral (DFE) key length of 512 bits in an
encrypted TLS session. Usage of weak keys can result in vulnerable key
exchanges that are susceptible to various attacks.

See also :

https://technet.microsoft.com/library/security/MS15-055

Solution :

Microsoft has released a set of patches for Windows 2003, Vista, 2008,
7, 2008 R2, 8, 2012, 8.1, and 2012 R2.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Windows : Microsoft Bulletins

Nessus Plugin ID: 83360 ()

Bugtraq ID: 74489

CVE ID: CVE-2015-1716

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