Transport Layer Security (TLS), like Secure Sockets Layer (SSL), is an encryption protocol intended to keep data secure when being transferred over a network. These articles describe steps required to ensure that Configuration Manager secure communication uses the TLS 1.2 protocol. These articles also describe update requirements for commonly used components and troubleshooting common problems.
Enabling TLS 1.2
Configuration Manager relies on many different components for secure communication. The protocol that's used for a given connection depends on the capabilities of the relevant components on both the client and server side. If any component is out-of-date or not properly configured, the communication might use an older, less secure protocol. To correctly enable Configuration Manager to support TLS 1.2 for all secure communications, you must enable TLS 1.2 for all required components. The required components depend on your environment and the Configuration Manager features that you use.
Important
Start this process with the clients, especially previous versions of Windows. Before enabling TLS 1.2 and disabling the older protocols on the Configuration Manager servers, make sure that all clients support TLS 1.2. Otherwise, the clients can't communicate with the servers and can be orphaned.
Tasks for Configuration Manager clients, site servers, and remote site systems
To enable TLS 1.2 for components that Configuration Manager depends on for secure communication, you'll need to do multiple tasks on both the clients and the site servers.
This section describes the dependencies for specific Configuration Manager features and scenarios. To determine the next steps, locate the items that apply to your environment.
- Update .NET Framework on the site server, the SQL Server Reporting Services servers, and any computer with the console - Restart the SMS_Executive service as necessary
TLS 1.2 is more secure than the previous cryptographic protocols such as SSL 2.0, SSL 3.0, TLS 1.0, and TLS 1.1. Essentially, TLS 1.2 keeps data being transferred across the network more secure.
Where does Configuration Manager use encryption protocols like TLS 1.2?
There are basically five areas that Configuration Manager uses encryption protocols like TLS 1.2:
Client communications to IIS-based site server roles when the role is configured to use HTTPS. Examples of these roles include distribution points, software update points, and management points.
Management point, SMS Executive, and SMS Provider communications with SQL. Configuration Manager always encrypts SQL Server communications.
Site Server to WSUS communications if WSUS is configured to use HTTPS.
The Configuration Manager console to SQL Server Reporting Services (SSRS) if SSRS is configured to use HTTPS.
Any connections to internet-based services. Examples include the cloud management gateway (CMG), the service connection point sync, and sync of update metadata from Microsoft Update.
What determines which encryption protocol is used?
HTTPS will always negotiate the highest protocol version that is supported by both the client and server in an encrypted conversation. On establishing a connection, the client sends a message to the server with its highest available protocol. If the server supports the same version, it sends a message using that version. This negotiated version is the one that is used for the connection. If the server doesn't support the version presented by the client, the server message will specify the highest version it can use. For more information about the TLS Handshake protocol, see Establishing a Secure Session by using TLS.
What determines which protocol version the client and server can use?
Generally, the following items can determine which protocol version is used:
The application can dictate which specific protocol versions to negotiate.
Best practice dictates to avoid hard coding specific protocol versions at the application level and to follow the configuration defined at the component and OS protocol level.
Configuration Manager follows this best practice.
For applications written using the .NET Framework, the default protocol versions depend on the version of the framework they were compiled upon.
.NET versions before 4.6.3 did not include TLS 1.1 and 1.2 in the list of protocols for negotiation, by default.
Applications that use WinHTTP for HTTPS communications, like the Configuration Manager client, depend on the OS version, patch level, and configuration for protocol version support.
-Press the Windows key + R to start Run, type regedit, and press Enter or click OK. -If you can't find any of the keys or if their values are not correct, then TLS 1.2 is not enabled.
How to check if TLS 1.2 is enabled? If the registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client\DisabledByDefault is present, the value should be 0.
From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Server Security > TLS (HTTPS) Options > Advanced Security Settings.
Configure options. To configure which cipher suites are allowed for TLS connections: ...
Click Start or press the Windows key. In the Start menu, either in the Run box or the Search box, type regedit and press Enter. The Registry Editor window should open and look similar to the example shown below. Check the subkeys for each SSL/TLS version for both server and client.
To set TLS 1.2 for the current PowerShell session, type: Azure PowerShell Copy. $TLS12Protocol = [System.Net.SecurityProtocolType] 'Ssl3 , Tls12' [System.Net.ServicePointManager]::SecurityProtocol = $TLS12Protocol.
Enter the URL you wish to check in the browser. Right-click the page or select the Page drop-down menu, and select Properties.In the new window, look for the Connection section. This will describe the version of TLS or SSL used.
However, both TLS 1.0 and TLS 1.1 are known to be quite vulnerable. TLS 1.2, on the other hand, is considered to be more secure. You can benefit greatly by enabling TLS 1.2 on your web browser. With TLS 1.1 disabled, you will no longer be vulnerable to BEAST (Browser Exploit Against SSL/TLS) attacks.
Simply put, it's up to you. Most browsers will allow the use of any SSL or TLS protocol. However, credit unions and banks should use TLS 1.1 or 1.2 to ensure a protected connection. The later versions of TLS will protect encrypted codes against attacks, and keep your confidential information safe.
Transport Layer Security (TLS) 1.2 is the successor to Secure Sockets Layer (SSL) used by endpoint devices and applications to authenticate and encrypt data securely when transferred over a network. TLS protocol is a widely accepted standard used by devices such as computers, phones, IoTs, meters, and sensors.
If the system date and time on your device are incorrect, it can cause an SSL/TLS handshake failed error. This error happens because the correct date and time are essential for SSL certificates; as they have finite lifespans and have an expiration date.
Scroll to the System section, then click Open your computer's proxy settings. Select the Advanced tab. Scroll to the Security section, then check Use TLS 1.2. Click OK, then close Chrome.
Configure SSL/TLS settings for Chrome browser from [Settings] -> [Show Advanced Settings] -> [Change Proxy Settings] -> [Advanced]. Scroll down to the Security settings. Click To See Full Image. Best Practice: Compare browser settings of a working computer with the conflicting one and perform the necessary changes.
It is fairly straightforward process to set up SSL with PowerShell. You need to get a certificate, create an SSL binding in IIS and then use the IP and Port of the IIS binding to create a SSL binding in HTTP.
Right-click on Start and select Run.Type inetcpl.cpl into the run box and press Enter.On the Advanced tab of the Internet Properties dialogue, enable TLS 1.1 under Security.
To open Internet Options, type Internet Options in the search box on the taskbar. You can also select Change settings from the dialog shown in Figure 1. On the Advanced tab, scroll down in the Settings panel.There you can enable or disable TLS protocols.
Configure SSL/TLS settings for Chrome browser from [Settings] -> [Show Advanced Settings] -> [Change Proxy Settings] -> [Advanced]. Scroll down to the Security settings. Click To See Full Image. Best Practice: Compare browser settings of a working computer with the conflicting one and perform the necessary changes.
Most browsers will allow the use of any SSL or TLS protocol. However, credit unions and banks should use TLS 1.1 or 1.2 to ensure a protected connection.
TLS 1.2, on the other hand, is considered to be more secure. You can benefit greatly by enabling TLS 1.2 on your web browser. With TLS 1.1 disabled, you will no longer be vulnerable to BEAST (Browser Exploit Against SSL/TLS) attacks.
While TLS 1.2 can still be used, it is considered safe only when weak ciphers and algorithms are removed. On the other hand, TLS 1.3 is new; it supports modern encryption, comes with no known vulnerabilities, and also improves performance.
Open Chrome Developer Tools. The quickest way there is with a keyboard shortcut: OS. Keyboard. Shortcuts. Windows and Linux. Ctrl + Shift + i. F12. Mac. ⌘ + Option + i. ...
Select the Security tab. If it is not shown, select the >> as shown below.
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