Enable TLS 1.3 on IIS 10 windows server 2019 - ssl

I am unable to enable TLS 1.3 on IIS 10 apps on windows server 2019. I have enable the schannel server TLS DWORD registry. But IIS is still choosing TLS 1.2 as the max supported cipher suite during handshake. I have deployed apps on TLS 1.3 on caddy on the same server with the same certificate.
Windows server 2019 supports TLS 1.3. I tried finding resources for support with IIS 10; they seems to be very old and officially there is no news for this? As anyone managed to do it with any IIS plugin or something?

Windows server 2019 does not support TLS 1.3, Windows server 2022 supported.
More information you can refer to this link: TLS protocol version support.

We are currently running IIS 10 on a W2019 Server and IIS actually supports TLS 1.3 now!
However we are facing the issue that the TLS handshake fails because the client sends unsupported_Extension after the ServerHello…

Related

TLS 1.2 support for camel-ftp version 2.17.0.redhat-630262 - Java 8

I was wondering if TLS 1.2 is supported by "camel-ftp" library for Java. The version used is 2.17.0.redhat-630262. Or should we upgrade the version to the latest for getting TLS 1.2 support? The Java version is 8.
The SSL support is provided by the underlying JDK. Java 8 has TLS V1.2, so this is available to camel -ftp (sftp endpoint). If you set securityProtocol to TLS, you will get the TLS protocols.
You may want to ensure that only the TLS V1.2 protocols are enabled in your jre/lib/security/java.security file, as the older, weaker, TLS versions are enabled by default.

Can't Use https on IIS on windows server 2019

I have new server windows 2019 standard Edition, with IIS 10 installed on it I exported my wildcard SSL from my old server to the new server my website can work successfully on http only while on https it gives an error can't open and gives this error
https://www.screencast.com/t/zgpV7hnUw
I tried to create a new request and get a new certificate also get the same error, also I enabled SSL 3.0 in the registry but also no result.
also, strange behavior when I tried to test the SSL with ssllabs website I found the response successful with grade A
Any advice
Thanks in advance
To resolve the issue you could try below things:
1)Open iis manager.
2)select your site-> bindings.
3)add binding with the below values:
type: https
IP: all assigned
port: 443
keep hostname blank
in certificate select IIS Development Certificate and click ok.
restart iis and site.
clear browser history and try to browse the site.
Thanks for you all the problem is when I applied the registry that applies to enable ciphers and Tls 1.3 and Tls1.2 and disable Tls1.0 and Tls 1.1 on windows 2019. windows 2019 don't need to add any ciphers or Tls1.3 and tls1.2 protocols

Turn on TLS 1.2

I just received an email from Authorize.net informing that they deactivate connections to their server using TLS1.0 and TLS1.1.
Question are Godaddy SSL and Web Host set for TLS1.2 connections and is there anything need to change for configure TLS1.2 for my site?
How to check which TLS use in my website?
How to check which TLS use in my website?
Use Qualys SSL Labs vulnerability tester to check which TLS version you are using: https://www.ssllabs.com/ssltest/
You may certainly see that you support several versions (this is the most common case).
Question are Godaddy SSL and Web Host set for TLS1.2 connections and is there anything need to change for configure TLS1.2 for my site?
You have nothing to do, web hosting services by GoDaddy are already supporting TLS 1.2 connections (and TLS 1.0 and TLS 1.1 - they do not support SSL v3 nor SSL v2 anymore, and it's a good thing).

How to disable SSL in IBM Websphere 6 and its impact?

Considering the POODLE attack, I want to disable the SSLv3 in my web app deployed on IBM WebSphere 6. There are a few concerns I cant address:
1. How to disable SSL and enable TLS in WAS 6.0 and 6.1?
2. When a client hits the url of my application in browser, and the browser supports SSL, the request will be initiated with SSL. Is there such a possibility wherein end user will get a handshake exception as the WAS 6 will have SSL disabled?
3. Is there a change required in application configuration or changing web server properties will help?
You don't need to change anything in your application.
There is already fixpack provided for latest WebSphere versions - check this page Vulnerability in SSLv3 affects IBM WebSphere Application Server
For V6.1.0.0 through 6.1.0.47:
Apply Interim Fix PI28796 : Will upgrade you to IBM Java SDK Version 5.0 Service Refresh 16 Fix Pack 7 + APAR IV66111 for change to
disable SSLv3 by default.
6.0 is soo old, that I don't remember if it even supports TLS. You will have to dig in the admin console somewhere in SSL settings (the exact path might be different) Security > SSL > SSL_configuration_name and change the protocol to TLS.
If you access WebSphere via web server (Apache or IHS), then you need to disable SSLv3 on the web server instead of application server. For details see Vulnerability in SSLv3 affects IBM HTTP Server
Add the following directive to the httpd.conf file to disable SSLv3
and SSLv2 for each context that contains "SSLEnable":
# Disable SSLv3 for CVE-2014-3566
# SSLv2 is disabled in V8R0 and later by default, and in typical V7
# and earlier configurations disabled implicitly when SSLv3 ciphers
# are configured with SSLCipherSpec.
SSLProtocolDisable SSLv3 SSLv2
Stop and restart IHS for the changes to take affect.

Globally disabling protocols in OpenSSL

Is it possible to globally disable TLS 1.1 for an application that is indirectly using OpenSSL?
I would like to disable TLS 1.1 for a C application that makes soap HTTPS calls using gSOAP.
Disabling TLS 1.1 fixes a intermittent SSL connection problem I have been experiencing for the last few days (SSL routines:SSL3_GET_RECORD:wrong version number).
Currently TLS 1.1 is disabled by using a custom build of gSOAP but ideally I would like to disable the protocol using a config file or some code in my application.
Ubuntu 12.04.5 LTS
OpenSSL 1.0.1-4ubuntu5.20
gSOAP 2.8.4-2
Although there is a global OpenSSL config file it can not be used to restrict the default SSL version(s). And unfortunately there seems to be no API or configuration for the gSOAP library to restrict the SSL version. So you must probably live with your custom build version and hope that someday they provide an API to set the SSL version.
At a minimum you will need gSOAP 2.8.28. Use the SOAP_TLSv1_2 option with soap_ssl_client_context() and soap_ssl_server_context() to restrict the TLS protocol to TLSv1.2 only. TLS1.0/TLS1.1/SSLv3 are disabled. You can't combine the SSL/TLS protocol options, so only TLSv1.2 will be enabled with this option. This works with OpenSSL 1.0.1 or later and recent GNUTLS versions. Perhaps there will be new options in upcoming gSOAP releases to support subsets of protocols, which would be nice.