Improve SMTP cipher selection

diff --git a/cookbooks/exim/templates/default/exim4.conf.erb b/cookbooks/exim/templates/default/exim4.conf.erb
index eb317b368323149d09b5bb199fcb4e9a23418973..e0224872e5373bcf5802273c2a3bd2ddae495d04 100644 (file)
--- a/cookbooks/exim/templates/default/exim4.conf.erb
+++ b/cookbooks/exim/templates/default/exim4.conf.erb
@@ -148,7 +148,7 @@ tls_advertise_hosts = <; !127.0.0.1 ; !::1
 
 # Configured TLS cipher selection.
 
 
 # Configured TLS cipher selection.
 

-tls_require_ciphers = NORMAL:%LATEST_RECORD_VERSION:-ARCFOUR-128:-MD5:-SHA1:-VERS-SSL3.0:%SERVER_PRECEDENCE
+tls_require_ciphers = NORMAL:-VERS-SSL3.0:-CIPHER-ALL:-SHA1:-MD5:+SHA1:+AES-256-GCM:+AES-256-CBC:+CAMELLIA-256-CBC:+AES-128-GCM:+AES-128-CBC:+CAMELLIA-128-CBC:%SERVER_PRECEDENCE

 
 # Specify the location of the Exim server's TLS certificate and private key.
 # The private key must not be encrypted (password protected). You can put
 
 # Specify the location of the Exim server's TLS certificate and private key.
 # The private key must not be encrypted (password protected). You can put


@@ -662,7 +662,7 @@ begin transports
 remote_smtp:
   driver = smtp
   multi_domain = false
 remote_smtp:
   driver = smtp
   multi_domain = false

-  tls_require_ciphers = NORMAL:%LATEST_RECORD_VERSION:-ARCFOUR-128:-MD5:-SHA1:-VERS-SSL3.0:%SERVER_PRECEDENCE
+  tls_require_ciphers = NORMAL:-VERS-SSL3.0:-CIPHER-ALL:-SHA1:-MD5:+SHA1:+AES-256-GCM:+AES-256-CBC:+CAMELLIA-256-CBC:+AES-128-GCM:+AES-128-CBC:+CAMELLIA-128-CBC:%SERVER_PRECEDENCE

 
 
 # This transport is used for handling pipe deliveries generated by alias or
 
 
 # This transport is used for handling pipe deliveries generated by alias or