Detections
Analytics

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

medium Nessus Plugin ID 83360

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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.

Solution

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

See Also

https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2015/ms15-055

Plugin Details

Severity: Medium

ID: 83360

File Name: smb_nt_ms15-055.nasl

Version: 1.10

Type: local

Agent: windows

Published: 5/12/2015

Updated: 11/15/2018

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 5/12/2015

Vulnerability Publication Date: 5/12/2015

Reference Information

CVE: CVE-2015-1716

BID: 74489

MSFT: MS15-055

MSKB: 3061518