![]() On TLS protocols, known issues and vulnerabilities, configurationĮxamples and testing tools. Reference guide to navigate the TLS landscape. ![]() The Operations Security (OpSec) team maintains this document as a The goal of this document is to help operational teams with theĬonfiguration of TLS on servers. The site and its usage is full documented at Mozilla's Security/Server Side TLS page: Put in your system's specific software versions and required level of security, and you'll get back a set of configuration settings to place in your configuration files. It's simple, repeatable, and well-documented. Without your entire ssl.conf file posted, it's impossible to know what's going on.īut I'd think the answer to your problem in any case is the easiest way to reliably configure SSL on a web server: get your ssl.conf values directly from the Mozilla SSL Configuration Generator. Notice that this directive can be used both in per-server and per-directory context. Suite the client is permitted to negotiate in the SSL handshake phase. This complex directive uses a colon-separated cipher-spec stringĬonsisting of OpenSSL cipher specifications to configure the Cipher Similar to the instructions given above for Apache Tomcat, modify (or add) the SSLCipherSuite directive in the nf or ssl.Per the Apache SSLCipherSuite documentation (bolding mine): You may want to reconfigure your Apache http webserver (if you are using it in conjunction with Apache Tomcat) to avoid the use of weak SSL cipher suites. R emove the cipher suites that you have identified as weak from the Supported Cipher Suite list by following these instructions: (v=vs.85).aspx Disabling weak ciphers in Apache server You may want to reconfigure your host Windows Operating System to avoid the use of weak SSL cipher suites. Disabling weak SSL ciphers in Windows Operating System If you are using an APR based SSL connector, CAST recommends specifying the following cipher suites:įollowing any changes you make, save the CATALINA_HOME\conf\server.xml file and then restart your application server so that the changes are taken into account. Apache Tomcat changesĬAST recommends specifying making the following changes to disable weak cipher suites: APR based SSL connector In addition, you may also want to disable weak cipher suites in the Windows Operating System and in Apache webserver if you are using them to host the Tomcat web application server. ![]() As such CAST recommends actually specifying the Cipher Suites you wish to use, rather than relying on the default which includes many insecure ciphers that could pose a risk to your organization's security. Unfortunately this list of Cipher Suites will include weak export grade ciphers that are insecure. the CAST web application) is permitted to negotiate in the SSL handshake phase. Apache recommends an SSL connector for you to use and by default this connector (whether APR or JSSE based) will include a list of Cipher Suites the client (i.e. IntroductionĪs described in Configuring Apache Tomcat to use secure https protocol, it is possible to configure Tomcat for secure https access to the CAST dashboards. Summary: this page explains how to modify your Apache Tomcat web application server, Windows Operating System and Apache web server to disable weak SSL cipher suites to improve security when using the HTTPS protocol to access CAST web applications. ![]()
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