![]() ![]() Note that for now microcode updates (deployed through the BIOS/firmware) are removed because of a bug.ĭownload the script here and run it (you need PowerCLI to be installed): Connect-VIServer įor information about this script, please continue reading at William’s website. The first function verifies both ESXi hosts and VMs and provides the output from the VM’s point of view. The second function only verifies that the ESXi microcode has been applied (this could have come a hardware vendor BIOS/Firmware update) but as mentioned earlier, it is also bundled within the ESXi patch ( source). The VerifyESXiMicrocodePatch.ps1 script contains two functions: VMware vSphere/ESXiįor VMware vSphere environments William Lam has provided various scripts. Patch procedure depends on the used distribution. More information here. Run the script: $ sudo sh spectre-meltdown-checker.sh Linuxįor Linux a test shell script can be downloaded using wget: $ cd /tmp/Īnother option is to get the script through git: $ git clone Note that there’s currently no patch available for Windows Server 20. You can download the patch for your OS from the Microsoft Update Catalog (in my experience patches were not automatically deployed), links are in article 4072698. For patching Windows Server OSes I refer to support article 4072698, which contains links to the available KBs for the different versions of the Windows Server OS. Is the patch enabled on the Windows OS įor exact interpretation of the results, please refer to Microsoft support article 4074629.Is the patch applied to the Windows OS.The test cmdlet will provide you with the following information: Set-ExecutionPolicy $SaveExecutionPolicy -Scope Currentuser ![]() ![]() # Reset the execution policy to the original state Set-ExecutionPolicy RemoteSigned -Scope Currentuser $SaveExecutionPolicy = Get-ExecutionPolicy Running the test is even simpler: # Save the current execution policy so it can be reset Installation is straightforward: Install-Module SpeculationControl Microsoft Windowsįor Microsoft Windows there’s a Powershell module available. I will provide you with some of these scripts in this article. There are some test/verification scripts available that can help you with this. Some patches are deployed automatically as part of an automated update mechanism, while other patches involve manual interaction.Īt the end you want to verify if you’ve applied the available patches in the right way. Patches are provided (and removed in some cases) by software- and hardware vendors. The script will do its best to detect mitigations, including backported non-vanilla patches, regardless of the advertised kernel version number.With all the latest news and updates on the Spectre and Meltdown CPU bugs, it’s sometimes hard to get the right information to the table. You can also specify a kernel image on the command line, if you would like to inspect a kernel you're not running. A shell script to tell if your system is vulnerable against the several "speculative execution" CVEs that were made public since 2018. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |