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

medium Nessus Plugin ID 100056
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 3.6

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.

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

See Also

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

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

Plugin Details

Severity: Medium

ID: 100056

File Name: smb_nt_ms17_may_4019112.nasl

Version: 1.12

Type: local

Agent: windows

Published: 5/9/2017

Updated: 11/13/2019

Dependencies: smb_check_dotnet_rollup.nasl, smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl, microsoft_net_framework_installed.nasl

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS Score Source: CVE-2017-0248

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:.net_framework

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 5/9/2017

Vulnerability Publication Date: 5/9/2017

Reference Information

CVE: CVE-2017-0248

BID: 98117

MSKB: 4016871, 4019108, 4019109, 4019110, 4019111, 4019112, 4019113, 4019114, 4019115, 4019472, 4019473, 4019474

MSFT: MS17-4016871, MS17-4019108, MS17-4019109, MS17-4019110, MS17-4019111, MS17-4019112, MS17-4019113, MS17-4019114, MS17-4019115, MS17-4019472, MS17-4019473, MS17-4019474