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

medium Nessus Plugin ID 90510
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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

http://www.nessus.org/u?52ade1e9

http://badlock.org/

Plugin Details

Severity: Medium

ID: 90510

File Name: ms16-047.nasl

Version: 1.9

Type: remote

Agent: windows

Family: Windows

Published: 4/13/2016

Updated: 7/23/2019

Dependencies: dcetest.nasl, os_fingerprint.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: Services/DCE/12345778-1234-abcd-ef00-0123456789ac

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

CERT: 813296

IAVA: 2016-A-0093

MSKB: 3148527, 3149090, 3147461, 3147458