Tomcat6/7应用服务器-禁用RC4等弱密码套件
最近更新了新版浏览器的同学是不是偶尔会遇到SSL加密协议不灵，访问不了的情况？ 最典型的例子是使用FF39+访问某些网站时报错：Error code: ssl_error_weak_server_ephemeral_dh_key
或者使用IBMAppScan扫描会出现类似“检测到 RC4 密码套件”的中危漏洞。(注意不同版本的AppScan检测机制可能不同)
加固方法： 1、首先你要确保你的密钥（证书）加密长度>1023bit，因为<1023bit FF会认为不安全。自签名证书的，自己去看看怎么把key size设置为1024或大于1024。如果是CA机构签名的，就需要去CA机构申请重新签名更换证书。
2、服务器SSL设置中，要disable DHE cipher suites，要disable TLSv2 TLSv3，启用TLSv1，TLSv1.1，TLSv1.2。
3、密码套件根据Tomcat应用服务器和jdk使用。（修改conf\server.xml文件配置） 3.1）如：Tomcat 6或7 + jdk6 的密码套件配置示例：
<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
sslEnabledpotocols="TLSv1,TLSv1.1,TLSv1.2"
maxThreads="150" scheme="https" secure="true"
clientAuth="false" keystoreFile="D:\backup\myssl.jks" keystorePass="myPassword"
sslProtocol="TLS" ciphers="TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,TLS_ECDH_ECDSA_WITH_RC4_128_SHA,TLS_ECDH_RSA_WITH_RC4_128_SHA,TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA"
/>关键节点：sslEnabledpotocols、 sslProtocol
3.2）如：Tomcat 7+ jdk7 的密码套件配置示例： 请参考：https://support.comodo.com/index.php?/Knowledgebase/Article/View/659
<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
sslEnabledpotocols="TLSv1,TLSv1.1,TLSv1.2"
maxThreads="150" scheme="https" secure="true"
clientAuth="false" keystoreFile="D:\backup\myssl.jks" keystorePass="myPassword"
sslProtocol="TLS" ciphers="TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384,TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384,TLS_DHE_DSS_WITH_AES_256_CBC_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,TLS_DHE_DSS_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256,TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256,TLS_DHE_DSS_WITH_AES_128_CBC_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,TLS_DHE_DSS_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,TLS_ECDH_ECDSA_WITH_RC4_128_SHA,TLS_ECDH_RSA_WITH_RC4_128_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384,TLS_DHE_DSS_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256,TLS_DHE_DSS_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,TLS_EMPTY_RENEGOTIATION_INFO_SCSVF"
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