{"id":125,"date":"2014-10-30T02:10:15","date_gmt":"2014-10-30T02:10:15","guid":{"rendered":"http:\/\/www.edrockwell.com\/blog\/?p=125"},"modified":"2026-07-02T16:57:33","modified_gmt":"2026-07-02T16:57:33","slug":"disable-sslv2-sslv3-and-enable-tls-1-2-and-pass-qualis-ssl-test","status":"publish","type":"post","link":"https:\/\/www.edrockwell.com\/blog\/disable-sslv2-sslv3-and-enable-tls-1-2-and-pass-qualis-ssl-test\/","title":{"rendered":"Disable SSLv2, SSLv3 and Enable TLS 1.2 and pass Qualis SSL Test"},"content":{"rendered":"<p>I was tasked with securing one of our internet facing web servers against the POODLE SSL vulnerability and weaker old SSL technologies. After doing many searches online, I finally wrote a script to run against our Windows 2008 R2 server to disable the protocols in IIS via the registry. The following is a simple script that you can run to change the STUNNEL ciphers to make your server secure.<\/p>\n<p>FIRST and most important, backup the registry hive that you will be changing. &lt;&lt; You have been warned! Do this by going to the following hive and right clicking it and exporting the hive:<\/p>\n<p>HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\<\/p>\n<p>Then simply run this script and reboot your server:<\/p>\n<pre class=\"lang:default decode:true \" >##################################\r\n#\r\n# Author: Ed Rockwell\r\n#\r\n# This script modifys SSL to remove old ciphers and enables TLS 1.2 on Windows Server 2008 R2 and Windows 7\r\n# To test and pass Qualys Scanning:\r\n# https:\/\/www.ssllabs.com\/ssltest\/analyze.html?d=www.yourdomain.com &amp;lt;&amp;lt; Change this to whatever site you want to test\r\n#\r\n\r\n# Disables SSL 3.0 - Creates Keys - These keys do not exist so they need to be created prior to setting values.\r\nmd \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 3.0\"\r\nmd \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 3.0\\Server\"\r\nmd \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 3.0\\Client\"\r\n\r\n# Disables SSL 3.0 - Creates DWords - for client and server SCHANNEL communications\r\nNew-ItemProperty -Path \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 3.0\\Server\" -name \"Enabled\" -Value 0 -PropertyType \"DWord\"\r\nNew-ItemProperty -Path \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 3.0\\Server\" -name \"DisabledByDefault\" -value 1 -PropertyType \"DWord\"\r\nNew-ItemProperty -Path \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 3.0\\Client\" -name \"Enabled\" -Value 0 -PropertyType \"DWord\"\r\nNew-ItemProperty -Path \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 3.0\\Client\" -name \"DisabledByDefault\" -value 1 -PropertyType \"DWord\"\r\n\r\n# Disables SSL 2.0 - Creates Keys - These keys do not exist so they need to be created prior to setting values.\r\nmd \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 2.0\\Server\"\r\n\r\n# Disables SSL 2.0 for client and server SCHANNEL communications\r\nNew-ItemProperty -Path \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 2.0\\Server\" -name \"Enabled\" -Value 0 -PropertyType \"DWord\"\r\nNew-ItemProperty -Path \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 2.0\\Server\" -name \"DisabledByDefault\" -value 1 -PropertyType \"DWord\"\r\nNew-ItemProperty -Path \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 2.0\\Client\" -name \"Enabled\" -Value 0 -PropertyType \"DWord\"\r\n# This is by default already there - New-ItemProperty -Path \"HKLM:\\System\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\SSL 2.0\\Client\" -name \"DisabledByDefault\" -value 1 -PropertyType \"DWord\"\r\n\r\n# Enables TLS 1.2 on Windows Server 2008 R2 and Windows 7\r\n# These keys do not exist so they need to be created prior to setting values.\r\nmd \"HKLM:\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\TLS 1.2\"\r\nmd \"HKLM:\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\TLS 1.2\\Server\"\r\nmd \"HKLM:\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\TLS 1.2\\Client\"\r\n\r\n# Enables TLS 1.2 for client and server SCHANNEL communications\r\nNew-ItemProperty -path \"HKLM:\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\TLS 1.2\\Server\" -name \"Enabled\" -value 1 -PropertyType \"DWord\"\r\nNew-ItemProperty -path \"HKLM:\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\TLS 1.2\\Server\" -name \"DisabledByDefault\" -value 0 -PropertyType \"DWord\"\r\nNew-ItemProperty -path \"HKLM:\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\TLS 1.2\\Client\" -name \"Enabled\" -value 1 -PropertyType \"DWord\"\r\nNew-ItemProperty -path \"HKLM:\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols\\TLS 1.2\\Client\" -name \"DisabledByDefault\" -value 0 -PropertyType \"DWord\"<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>I was tasked with securing one of our internet facing web servers against the POODLE SSL vulnerability and weaker old SSL technologies. After doing many searches online, I finally wrote a script to run against our Windows 2008 R2 server to disable the protocols in IIS via the registry. The following is a simple script [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[56,60,61,57,58,59],"class_list":["post-125","post","type-post","status-publish","format-standard","hentry","category-powershell","tag-poodle","tag-secure-ssl","tag-secure-tls","tag-sslv2","tag-sslv3","tag-tls-1-2"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"I was tasked with securing one of our internet facing web servers against the POODLE SSL vulnerability and weaker old SSL technologies. 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