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

Medium Nessus Plugin ID 90510


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


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.


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

Plugin Details

Severity: Medium

ID: 90510

File Name: ms16-047.nasl

Version: $Revision: 1.5 $

Type: remote

Agent: windows

Family: Windows

Published: 2016/04/13

Modified: 2017/08/30

Dependencies: 10736, 11936

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5.6

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: Services/DCE/12345778-1234-abcd-ef00-0123456789ac

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/04/12

Vulnerability Publication Date: 2016/03/23

Reference Information

CVE: CVE-2016-0128

BID: 86002

OSVDB: 136339

MSFT: MS16-047

CERT: 813296

IAVA: 2016-A-0093

MSKB: 3148527, 3149090, 3147461, 3147458