TLS Security 2: A Brief History of SSL/TLS | Acunetix (2024)

FAQs

How to disable SSL 2.0 SSL 3.0 TLS 1.0 and TLS 1.1 in Windows 10? ›

In the Internet Options window on the Advanced tab, under Settings, scroll down to the Security section. In the Security section, locate the Use SSL and Use TLS options and uncheck Use SSL 3.0 and Use SSL 2.0. If they are not already selected, check Use TLS 1.0, Use TLS 1.1, and Use TLS 1.2.

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.

Open the Tools menu (click on the tools icon or type Alt - x) and select Internet options. Select the Advanced tab. Scroll down to the bottom of the Settings section. If TLS is not enabled, select the checkboxes next to Use TLS 1.0, Use TLS 1.1, and Use TLS 1.2.

-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.

In the navigation tree, under SSL 3.0, select Server and then, in the right pane, double-click the Enabled DWORD value. In the Edit DWORD (32-bit) Value window, in the Value Data box leave the value at 0 and then, click OK. Restart your Windows server. You have successfully disabled the SSL v3 protocol.

Under TLS Versions, you will see the TLS protocol version(s) currently selected. To update the protocol, simply click edit. Next, choose your desired protocol based on your requirements and hit Save Changes. Please note that you can not disable TLS v1.

However, SSL is an older technology that contains some security flaws. Transport Layer Security (TLS) is the upgraded version of SSL that fixes existing SSL vulnerabilities. TLS authenticates more efficiently and continues to support encrypted communication channels.

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.

The fix is easy: In the windows search box, near the Windows Start button, type Internet Options. Open the result Internet options - control panel. Then click the Advanced tab. Scroll down in the long list to security and make sure use TLS 1.2 is checked.

How do I reset my TLS security settings to default? ›

The SSL/TLS Vulnerability Scanner performs a security assessment of the configuration of the target SSL/TLS service to provide a list of weaknesses and vulnerabilities packed with detailed recommendations for remediation. The list of vulnerabilities detected by this scanner includes: Heartbleed. Ticketbleed.

Click the Tools icon (gear symbol) in the upper right hand corner of the browser and click Internet Options. In the Internet Options window, select the Advanced tab. In the Advanced tab, under Settings, scroll down to the Security section. In the Security section, check Use TLS 1.1 and Use TLS 1.2.

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.

Create Registry Keys to Disable TLS 1.1

Press Windows key + R to open the Run dialog box. Type regedit and press Enter to open Registry Editor. Right-click on the “Protocols” folder and select “New” -> “Key“. Create a new DWORD registry entry named “DisabledByDefault” and set its value to “1“.

Go to SSL/TLS > Edge Certificates. For Disable Universal SSL, select Disable Universal SSL. Read the warnings in the Acknowledgement. Select I Understand and select Confirm.