Security Override By Ruvesh Shaikh(RV)

HOW TO BE SAFE FROM RANSOMEWARE "TEMPORARY"

Security Update for Microsoft Windows SMB Server (4013389)

Executive Summary

This security update resolves vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow remote code execution if an attacker sends specially crafted messages to a Microsoft Server Message Block 1.0 (SMBv1) server.

This security update is rated Critical for all supported releases of Microsoft Windows. For more information, see the Affected Software and Vulnerability Severity Ratings section.

The security update addresses the vulnerabilities by correcting how SMBv1 handles specially crafted requests.

For more information about the vulnerabilities, see the Vulnerability Information section.

For more information about this update, see Microsoft Knowledge Base Article 4013389

Operating System	Windows SMB Remote Code Execution Vulnerability – CVE-2017-0143	Windows SMB Remote Code Execution Vulnerability – CVE-2017-0144	Windows SMB Remote Code Execution Vulnerability – CVE-2017-0145	Windows SMB Remote Code Execution Vulnerability – CVE-2017-0146	Windows SMB Information Disclosure Vulnerability – CVE-2017-0147	Windows SMB Remote Code Execution Vulnerability – CVE-2017-0148	Updates Replaced
Windows Vista
Windows Vista Service Pack 2 (4012598)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3177186 in MS16-114
Windows Vista x64 Edition Service Pack 2 (4012598)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3177186 in MS16-114
Windows Server 2008
Windows Server 2008 for 32-bit Systems Service Pack 2 (4012598)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3177186 in MS16-114
Windows Server 2008 for x64-based Systems Service Pack 2 (4012598)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3177186 in MS16-114
Windows Server 2008 for Itanium-based Systems Service Pack 2 (4012598)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3177186 in MS16-114
Windows 7
Windows 7 for 32-bit Systems Service Pack 1 (4012212) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows 7 for 32-bit Systems Service Pack 1 (4012215) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3212646
Windows 7 for x64-based Systems Service Pack 1 (4012212) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows 7 for x64-based Systems Service Pack 1 (4012215) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3212646
Windows Server 2008 R2
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (4012212) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (4012215) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3212646
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 (4012212) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 (4012215) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3212646
Windows 8.1
Windows 8.1 for 32-bit Systems (4012213) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows 8.1 for 32-bit Systems (4012216) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3205401
Windows 8.1 for x64-based Systems (4012213) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows 8.1 for x64-based Systems (4012216) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3205401
Windows Server 2012 and Windows Server 2012 R2
Windows Server 2012 (4012214) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows Server 2012 (4012217) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3205409
Windows Server 2012 R2 (4012213) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows Server 2012 R2 (4012216) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3205401
Windows RT 8.1
Windows RT 8.1[2] (4012216) Monthly Rollup	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3205401
Windows 10
Windows 10 for 32-bit Systems [3] (4012606)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3210720
Windows 10 for x64-based Systems [3] (4012606)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3210720
Windows 10 Version 1511 for 32-bit Systems [3] (4013198)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3210721
Windows 10 Version 1511 for x64-based Systems [3] (4013198)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3210721
Windows 10 Version 1607 for 32-bit Systems [3] (4013429)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3213986
Windows 10 Version 1607 for x64-based Systems [3] (4013429)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3213986
Windows Server 2016
Windows Server 2016 for x64-based Systems [3] (4013429)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3213986
Server Core installation option
Windows Server 2008 for 32-bit Systems Service Pack 2(Server Core installation) (4012598)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3177186 in MS16-114
Windows Server 2008 for x64-based Systems Service Pack 2(Server Core installation) (4012598)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3177186 in MS16-114
Windows Server 2008 R2 for x64-based Systems Service Pack 1(Server Core installation) (4012212) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows Server 2008 R2 for x64-based Systems Service Pack 1(Server Core installation) (4012215) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3212646
Windows Server 2012(Server Core installation) (4012214) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows Server 2012(Server Core installation) (4012217) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3205409
Windows Server 2012 R2 (Server Core installation) (4012213) Security Only[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	None
Windows Server 2012 R2 (Server Core installation) (4012216) Monthly Rollup[1]	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3205401
Windows Server 2016 for x64-based Systems [3](Server Core installation) (4013429)	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Important Information Disclosure	Critical Remote Code Execution	3213986

[1]Beginning with the October 2016 release, Microsoft has changed the update servicing model for Windows 7, Windows Server 2008 R2, Windows 8.1, Windows Server 2012, and Windows Server 2012 R2. For more information, please see this Microsoft TechNet article.

[2]This update is only available via Windows Update.

[3] Windows 10 and Windows Server 2016 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog. Please note that effective December 13, 2016, Windows 10 and Windows Server 2016 details for the Cumulative Updates will be documented in Release Notes. Please refer to the Release Notes for OS Build numbers, Known Issues, and affected file list information.

*The Updates Replaced column shows only the latest update in any chain of superseded updates. For a comprehensive list of updates replaced, go to the Microsoft Update Catalog, search for the update KB number, and then view update details (updates replaced information is provided on the Package Details tab).

Vulnerability Information

Multiple Windows SMB Remote Code Execution Vulnerabilities

Remote code execution vulnerabilities exist in the way that the Microsoft Server Message Block 1.0 (SMBv1) server handles certain requests. An attacker who successfully exploited the vulnerabilities could gain the ability to execute code on the target server.

To exploit the vulnerability, in most situations, an unauthenticated attacker could send a specially crafted packet to a targeted SMBv1 server.

The security update addresses the vulnerabilities by correcting how SMBv1 handles these specially crafted requests.

The following table contains links to the standard entry for each vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability title	CVE number	Publicly disclosed	Exploited
Windows SMB Remote Code Execution Vulnerability	CVE-2017-0143	No	No
Windows SMB Remote Code Execution Vulnerability	CVE-2017-0144	No	No
Windows SMB Remote Code Execution Vulnerability	CVE-2017-0145	No	No
Windows SMB Remote Code Execution Vulnerability	CVE-2017-0146	No	No
Windows SMB Remote Code Execution Vulnerability	CVE-2017-0148	No	No

Mitigating Factors

Microsoft has not identified any mitigating factors for these vulnerabilities.

Workarounds

The following workarounds may be helpful in your situation:

• Disable SMBv1
  For customers running Windows Vista and later
  See Microsoft Knowledge Base Article 2696547.
  Alternative method for customers running Windows 8.1 or Windows Server 2012 R2 and later
  For client operating systems:
  1. Open Control Panel, click Programs, and then click Turn Windows features on or off.
  2. In the Windows Features window, clear the SMB1.0/CIFS File Sharing Support checkbox, and then click OK to close the window.
  3. Restart the system.
      
  For server operating systems:
  1. Open Server Manager and then click the Manage menu and select Remove Roles and Features.
  2. In the Features window, clear the SMB1.0/CIFS File Sharing Support check box, and then click OK to close the window.
  3. Restart the system.
      
  Impact of workaround. The SMBv1 protocol will be disabled on the target system.
  How to undo the workaround. Retrace the workaround steps, and select the SMB1.0/CIFS File Sharing Support check box to restore the SMB1.0/CIFS File Sharing Support feature to an active state.

Windows SMB Information Disclosure Vulnerability – CVE-2017-0147

An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 1.0 (SMBv1) server handles certain requests. An attacker who successfully exploited this vulnerability could craft a special packet, which could lead to information disclosure from the server.

To exploit the vulnerability, in most situations, an unauthenticated attacker could send a specially crafted packet to a targeted SMBv1 server.

The security update addresses the vulnerability by correcting how SMBv1 handles these specially crafted requests.

The following table contains links to the standard entry for each vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability title	CVE number	Publicly disclosed	Exploited
Windows SMB Information Disclosure Vulnerability	CVE-2017-0147	No	No

Mitigating Factors

Microsoft has not identified any mitigating factors for this vulnerability.

Workarounds

The following workarounds may be helpful in your situation:

• Disable SMBv1
  For customers running Windows Vista and later
  See Microsoft Knowledge Base Article 2696547.
  Alternative method for customers running Windows 8.1 or Windows Server 2012 R2 and later
  For client operating systems:
  1. Open Control Panel, click Programs, and then click Turn Windows features on or off.
  2. In the Windows Features window, clear the SMB1.0/CIFS File Sharing Support checkbox, and then click OK to close the window.
  3. Restart the system.
      
  For server operating systems:
  1. Open Server Manager and then click the Manage menu and select Remove Roles and Features.
  2. In the Features window, clear the SMB1.0/CIFS File Sharing Support check box, and then click OK to close the window.
  3. Restart the system.
      
  Impact of workaround. The SMBv1 protocol will be disabled on the target system.
  How to undo the workaround. Retrace the workaround steps, and select the SMB1.0/CIFS File Sharing Support check box to restore the SMB1.0/CIFS File Shar