You need to have PowerShell 3.0 or above to run the

The following link is Windows Management Framework 5.1

https://www.microsoft.com/en-us/download/details.aspx?id=54616

Run PowerShell under admin right:

1. Enable PowerShell to run script:

Set-ExecutionPolicy RemoteSigned

2. Run the pre-requirement check of install WMF5.1 by using the PowerShell "Install0WMF5.1.ps1"

Please note that for Windows 7 and Windows Server 2008 R2 the installation instructions have changed significantly. Please read the Install and Configure topic in the release notes. We have removed the requirement for pre-installing WMF 4 on Windows 7 and Windows Server 2008 R2, but to do so we had create a script for checking the prerequisites that accompanies the MSU in a ZIP file. WMF 5.1 requires .Net version 4.5.2, and cannot be installed on Windows 7 or Windows Server 2008 R2 if WMF 3.0 is installed. This affects only Windows 7 and Windows Server 2008 R2. The Install and Configure topic in the release notes provides details on using the script.

https://blogs.msdn.microsoft.com/powershell/2017/01/19/windows-management-framework-wmf-5-1-released/

3. Reboot the computer is required after upgrade the WMF

4. Follow the instruction to valid those servers and application

Before install the patch

After install the Patch:

To enable the mitigations

reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverride /t REG_DWORD /d 0 /f

reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverrideMask /t REG_DWORD /d 3 /f

Reference:

https://support.microsoft.com/en-gb/help/4072698/windows-server-guidance-to-protect-against-the-speculative-execution

https://betanews.com/2018/01/05/microsoft-powershell-meltdown-spectre-script/

http://mikefrobbins.com/2018/01/04/using-powershell-to-check-remote-windows-systems-for-cve-2017-5754-meltdown-and-cve-2017-5715-spectre/

http://news.softpedia.com/news/the-complete-guide-how-to-patch-meltdown-and-spectre-vulnerabilities-on-windows-519226.shtml

https://www.techrepublic.com/article/emergency-windows-meltdown-patch-may-be-incompatible-with-your-pc/

The hotfix from Microsoft, RedHat and VMware at the following:

For windows patch deployment, if using Mcafee, it need to update register key "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat" first.

https://support.microsoft.com/en-us/help/4056898

WINDOWS
About the intel vulnerability on Windows (not Azure specific), pls find our published info and patches below.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV180002
Update for Windows Server 2016 is available here:
https://support.microsoft.com/en-us/help/4056890
Windows 10 1709 (Fall Creators Update):
https://support.microsoft.com/en-us/help/4056892
Updates for other OS versions:
http://www.catalog.update.microsoft.com/Search.aspx?q=2018-01

Windows Client Guidance for IT Pros to protect against speculative execution side-channel vulnerabilities

https://support.microsoft.com/en-us/help/4073119/windows-client-guidance-for-it-pros-to-protect-against-speculative-exe?ranMID=24542&ranEAID=nOD%2FrLJHOac&ranSiteID=nOD_rLJHOac-9l5jOPaPqmkvZwSt.6rR0w&tduid=(72882831a6cc2b13e2bb4cdc8c5e787f)(256380)(2459594)(nOD_rLJHOac-9l5jOPaPqmkvZwSt.6rR0w)()

RedHat Enterprise Linux:
The vulnerability has been assigned CVE-2017-5754, CVE-2017-5753 & CVE-2017-5715. This issue was publicly disclosed on Wednesday, January 3, 2018 and is rated as Important [1].
Kernel Side-Channel Attacks (CVE-2017-5754, CVE-2017-5753, & CVE-2017-5715)
https://access.redhat.com/security/vulnerabilities/speculativeexecution

Reference:
https://www.extremetech.com/computing/261364-massive-intel-cpu-bug-leaves-kernel-vulnerable-reduce-performance
https://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/
https://www.theverge.com/2018/1/3/16844630/intel-processor-security-flaw-bug-kernel-windows-linux
https://www.techpowerup.com/240174/intel-secretly-firefighting-a-major-cpu-bug-affecting-datacenters
https://news.xfastest.com/intel/44421/intel-memory-leak-bug/
https://hothardware.com/news/intel-cpu-bug-kernel-memory-isolation-linux-windows-macos

There are more detail about the vulnerability:
Google Project Zero blog:
https://googleprojectzero.blogspot.hk/2018/01/reading-privileged-memory-with-side.html
Research paper:
https://spectreattack.com/spectre.pdf
https://meltdownattack.com/meltdown.pdf

Reference:
http://blog.cyberus-technology.de/posts/2018-01-03-meltdown.html
AMD Respond:
http://www.amd.com/en/corporate/speculative-execution
ARM Security:
https://developer.arm.com/support/security-update
Meltdown in Action: Dumping memory
https://m.youtube.com/watch?v=bReA1dvGJ6Y

Spectre and Meltdown processor security flaws – explained

https://www.theguardian.com/technology/2018/jan/04/meltdown-spectre-computer-processor-intel-security-flaws-explainer

How to protect your PC against the major ‘Meltdown’ CPU security flaw

https://www.theverge.com/2018/1/4/16848976/how-to-protect-windows-pc-meltdown-security-flaw

#Spectre #CVE20175715   #CVE20175753
#Meltdown #CVE20175754
#SideChannelAttack