MS16-047: Security Update for SAM and LSAD Remote Protocols (3148527) (Badlock)

medium Nessus Plugin ID 90440
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote Windows host is affected by an elevation of privilege vulnerability.

Description

The remote Windows host is affected by an elevation of privilege vulnerability in the Security Account Manager (SAM) and Local Security Authority (Domain Policy) (LSAD) protocols due to improper authentication level negotiation over Remote Procedure Call (RPC) channels. A man-in-the-middle attacker able to intercept communications between a client and a server hosting a SAM database can exploit this to force the authentication level to downgrade, allowing the attacker to impersonate an authenticated user and access the SAM database.

Solution

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

See Also

https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2016/ms16-047

http://badlock.org/

Plugin Details

Severity: Medium

ID: 90440

File Name: smb_nt_ms16-047.nasl

Version: 1.9

Type: local

Agent: windows

Published: 4/12/2016

Updated: 11/20/2019

Dependencies: smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl

Risk Information

CVSS Score Source: CVE-2016-0128

VPR

Risk Factor: Medium

Score: 6

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

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

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

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

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: 4/12/2016

Vulnerability Publication Date: 3/23/2016

Reference Information

CVE: CVE-2016-0128

BID: 86002

MSFT: MS16-047

MSKB: 3148527, 3149090, 3147461, 3147458

CERT: 813296

IAVA: 2016-A-0093