Security bugging you about SCOM using TLS1.0 ?

Have questions on the TLS1.2 Protocol Support Deployment guide link?

If using ACS, please review ACS steps to configure from the guide above

It’s time to update SCOM 2016 to TLS1.2!

Pre-requisites

.Net and SQL native client, ODBC must be updated to TLS1.2 compliant version

HTTPS Endpoints must be CA signed certificates using SHA1 or SHA2

Ensure .Net version 4.6 is installed on all SC components

Determine which .Net is installed https://docs.microsoft.com/en-us/dotnet/framework/migrationguide/how-to-determine-which-versions-are-installed

From PowerShell (run as admin is NOT required)

Get-ChildItem ‘HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP’ -recurse | Get-ItemProperty -name Version,Release -EA 0 | Where { $_.PSChildName -match ‘^(?!S)\p{L}’} | Select PSChildName, Version, Release

Above commands from StackOverFlow article

Guide to .Net versions and dependencies https://docs.microsoft.com/enus/dotnet/framework/migration-guide/versions-and-dependencies

Sample output from win2k8R2 sp1 server (and same from 2016 server)

SQL Server updates

Install the required SQL server update supporting TLS1.2

From PowerShell as Administrator
Invoke-Sqlcmd -Query “SELECT @@VERSION;” -QueryTimeout 3

Example Output
PS C:\Windows\system32> Invoke-Sqlcmd -Query “SELECT @@VERSION;” -QueryTimeout 3
Column1

——

Microsoft SQL Server 2016 (RTM-GDR) (KB3210111) – 13.0.1728.2 (X64) …

OR

Microsoft SQL Server 2008 R2 (SP2) – 10.50.4000.0 (X64)

Compare to SQL matrix to download and install appropriate version
TLS 1.2 SQL Support https://support.microsoft.com/en-in/help/3135244/tls-1.2-support-for-microsoft-sql-server
NOTE Verify you are running a compliant cumulative update (CU), you will need the patch (SQL2016 natively supports TLS1.2)
SQL Server 2008R2 SP2 is NOT supported for TLS1.2  https://blogs.msdn.microsoft.com/sqlreleaseservices/tls-1-2-support-for-sql-server-2008-2008-r2-2012and-2014/

Install the required SQL Native Client
FYI – SQL 2016 uses the SQL 2012 Native client
Download link https://www.microsoft.com/en-us/download/details.aspx?id=50402

SQL Native client 11.0 should be installed on ALL MS and SQL servers (SQL 2008-2016)

From PowerShell as Administrator
get-odbcdriver -name “SQL Server Native Client*”

Example Output

From Control Panel, Programs and Features, Installed Programs

Stop SQL Server and SQL Server agent services
Stop-service SQLSERVERAGENT

Stop-service MSSQLSERVER

Install SQL Native Client MSI

Double click on SQL Native Client MSI file to begin installation

Click on Yes to begin installation

Click Next on the Installer window

Click I accept radio button

Click Next

Click Next on Feature Selection

Click Install

Click Yes on User Account Control (UAC) prompt

Stop SQL Server and SQL Server agent (if they restarted)

Watch installer status

Click Finish when complete

Verify SQL Native Client Verification

Verify SQL services are running
Stop SQL Server and SQL Server agent services From PowerShell as Admin
Get-service SQLSERVERAGENT

Get-service MSSQLSERVER

From PowerShell as Admin If necessary, start SQL Server and SQL Server agent services
Start-service SQLSERVERAGENT

Start-service MSSQLSERVER
Verify Installer completed
In Event Viewer, Windows Logs, Application look for event 11728

From PowerShell

Get-EventLog -LogName Application | ? { $_.InstanceId -eq 11728 }

Rinse and Repeat for other MS and SQL servers in environment

Install ODBC on all Management Servers

For SCOM & SM, ODBC 11.0 or ODBC 13.0 should be installed on all MS and SQL servers

Verify ODBC v11 for server win2k8R2

From Control Panel

Click on Programs

Click on Programs and Features

Search for ODBC

Verify ODBC v13 for Server 2016

Verify version from PowerShell (run as administrator NOT required)
get-odbcdriver -name “ODBC Driver * SQL Server”

Output

Download and install appropriate version

11.0: https://www.microsoft.com/en-us/download/details.aspx?id=36434 (Version 2.0.5543.11)
13.0: https://www.microsoft.com/en-us/download/details.aspx?id=50420
Verify Installer completed
In Event Viewer, Windows Logs, Application look for event 11728

From PowerShell

Get-EventLog -LogName Application | ? { $_.InstanceId -eq 11728 } | ? { $_.Message -like “*Microsoft ODBC*”

Output

NOTE Please make sure servers are patched with latest Monthly Rollup Updates

Had issue where KB3080079 was NOT installed on server.  Patch applied to Win7, Server 2008,2008R2

From Powershell

get-hotfix -id KB3080079

Output

Install SCOM 2016 UR4 update

See Kevin Holman’s UR4 install blog https://blogs.technet.microsoft.com/kevinholman/2017/10/28/ur4-for-scom-2016-step-by-step/

Time to enable TLS1.2 Secure Channel messages on MS and SQL server (gateway if installed in your environment)

See Gallery for add/query/remove registry keys

Add SCHANNEL path for TLS

$ProtocolList       = @(“SSL 2.0″,”SSL 3.0″,”TLS 1.0”, “TLS 1.1”, “TLS 1.2”)
$ProtocolSubKeyList = @(“Client”, “Server”)
$DisabledByDefault = “DisabledByDefault”
$Enabled = “Enabled”
$registryPath = “HKLM:\\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\”

foreach($Protocol in $ProtocolList)
{
    Write-Host ” In 1st For loop”
foreach($key in $ProtocolSubKeyList)
{
$currentRegPath = $registryPath + $Protocol + “\” + $key
Write-Host ” Current Registry Path $currentRegPath”

if(!(Test-Path $currentRegPath))
{
    Write-Host “creating the registry”
New-Item -Path $currentRegPath -Force | out-Null
}
if($Protocol -eq “TLS 1.2”)
{
    Write-Host “Working for TLS 1.2”
New-ItemProperty -Path $currentRegPath -Name $DisabledByDefault -Value “0” -PropertyType DWORD -Force | Out-Null
New-ItemProperty -Path $currentRegPath -Name $Enabled -Value “1” -PropertyType DWORD -Force | Out-Null

}
else
{
    Write-Host “Working for other protocol”
New-ItemProperty -Path $currentRegPath -Name $DisabledByDefault -Value “1” -PropertyType DWORD -Force | Out-Null
New-ItemProperty -Path $currentRegPath -Name $Enabled -Value “0” -PropertyType DWORD -Force | Out-Null
}
}
}

# Tighten up the .NET Framework
$NetRegistryPath = “HKLM:\SOFTWARE\Microsoft\.NETFramework\v4.0.30319”
 New-ItemProperty -Path $NetRegistryPath -Name “SchUseStrongCrypto” -Value “1” -PropertyType DWORD -Force | Out-Null

$NetRegistryPath = “HKLM:\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v4.0.30319”
 New-ItemProperty -Path $NetRegistryPath -Name “SchUseStrongCrypto” -Value “1” -PropertyType DWORD -Force | Out-Null

Restart servers

Verify SCOM Console for alerts and connectivity