https_connection: raise INADEQUATE_SECURITY when negotiated in non-secure cipher suite

1 files changed, 24 insertions, 0 deletions

diff --git a/lib/plum/https_connection.rb b/lib/plum/https_connection.rb
index a1def19..95f2837 100644
--- a/lib/plum/https_connection.rb
+++ b/lib/plum/https_connection.rb
@@ -1,7 +1,31 @@
 module Plum
   class HTTPSConnection < Connection
     def initialize(io, local_settings = {})
+      if io.respond_to?(:cipher) # OpenSSL::SSL::SSLSocket-like
+        if CIPHER_BLACKLIST.include?(io.cipher.first) # [cipher-suite, ssl-version, keylen, alglen]
+          self.on(:negotiated) {
+            raise ConnectionError.new(:inadequate_security)
+          }
+        end
+      end
+
       super
     end
+
+    CIPHER_BLACKLIST = %w(
+      NULL-MD5 NULL-SHA EXP-RC4-MD5 RC4-MD5 RC4-SHA EXP-RC2-CBC-MD5 IDEA-CBC-SHA EXP-DES-CBC-SHA DES-CBC-SHA DES-CBC3-SHA
+      DH-DSS-DES-CBC-SHA DH-DSS-DES-CBC3-SHA DH-RSA-DES-CBC-SHA DH-RSA-DES-CBC3-SHA EXP-EDH-DSS-DES-CBC-SHA EDH-DSS-DES-CBC-SHA EDH-DSS-DES-CBC3-SHA EXP-EDH-RSA-DES-CBC-SHA EDH-RSA-DES-CBC-SHA EDH-RSA-DES-CBC3-SHA
+      EXP-ADH-RC4-MD5 ADH-RC4-MD5 EXP-ADH-DES-CBC-SHA ADH-DES-CBC-SHA ADH-DES-CBC3-SHA AES128-SHA DH-DSS-AES128-SHA DH-RSA-AES128-SHA DHE-DSS-AES128-SHA DHE-RSA-AES128-SHA
+      ADH-AES128-SHA AES256-SHA DH-DSS-AES256-SHA DH-RSA-AES256-SHA DHE-DSS-AES256-SHA DHE-RSA-AES256-SHA ADH-AES256-SHA NULL-SHA256 AES128-SHA256 AES256-SHA256
+      DH-DSS-AES128-SHA256 DH-RSA-AES128-SHA256 DHE-DSS-AES128-SHA256 CAMELLIA128-SHA DH-DSS-CAMELLIA128-SHA DH-RSA-CAMELLIA128-SHA DHE-DSS-CAMELLIA128-SHA DHE-RSA-CAMELLIA128-SHA ADH-CAMELLIA128-SHA DHE-RSA-AES128-SHA256
+      DH-DSS-AES256-SHA256 DH-RSA-AES256-SHA256 DHE-DSS-AES256-SHA256 DHE-RSA-AES256-SHA256 ADH-AES128-SHA256 ADH-AES256-SHA256 CAMELLIA256-SHA DH-DSS-CAMELLIA256-SHA DH-RSA-CAMELLIA256-SHA DHE-DSS-CAMELLIA256-SHA
+      DHE-RSA-CAMELLIA256-SHA ADH-CAMELLIA256-SHA PSK-RC4-SHA PSK-3DES-EDE-CBC-SHA PSK-AES128-CBC-SHA PSK-AES256-CBC-SHA SEED-SHA DH-DSS-SEED-SHA DH-RSA-SEED-SHA DHE-DSS-SEED-SHA
+      DHE-RSA-SEED-SHA ADH-SEED-SHA AES128-GCM-SHA256 AES256-GCM-SHA384 DH-RSA-AES128-GCM-SHA256 DH-RSA-AES256-GCM-SHA384 DH-DSS-AES128-GCM-SHA256 DH-DSS-AES256-GCM-SHA384 ADH-AES128-GCM-SHA256 ADH-AES256-GCM-SHA384
+      ECDH-ECDSA-NULL-SHA ECDH-ECDSA-RC4-SHA ECDH-ECDSA-DES-CBC3-SHA ECDH-ECDSA-AES128-SHA ECDH-ECDSA-AES256-SHA ECDHE-ECDSA-NULL-SHA ECDHE-ECDSA-RC4-SHA ECDHE-ECDSA-DES-CBC3-SHA ECDHE-ECDSA-AES128-SHA ECDHE-ECDSA-AES256-SHA
+      ECDH-RSA-NULL-SHA ECDH-RSA-RC4-SHA ECDH-RSA-DES-CBC3-SHA ECDH-RSA-AES128-SHA ECDH-RSA-AES256-SHA ECDHE-RSA-NULL-SHA ECDHE-RSA-RC4-SHA ECDHE-RSA-DES-CBC3-SHA ECDHE-RSA-AES128-SHA ECDHE-RSA-AES256-SHA
+      AECDH-NULL-SHA AECDH-RC4-SHA AECDH-DES-CBC3-SHA AECDH-AES128-SHA AECDH-AES256-SHA SRP-3DES-EDE-CBC-SHA SRP-RSA-3DES-EDE-CBC-SHA SRP-DSS-3DES-EDE-CBC-SHA SRP-AES-128-CBC-SHA SRP-RSA-AES-128-CBC-SHA
+      SRP-DSS-AES-128-CBC-SHA SRP-AES-256-CBC-SHA SRP-RSA-AES-256-CBC-SHA SRP-DSS-AES-256-CBC-SHA ECDHE-ECDSA-AES128-SHA256 ECDHE-ECDSA-AES256-SHA384 ECDH-ECDSA-AES128-SHA256 ECDH-ECDSA-AES256-SHA384 ECDHE-RSA-AES128-SHA256 ECDHE-RSA-AES256-SHA384
+      ECDH-RSA-AES128-SHA256 ECDH-RSA-AES256-SHA384 ECDH-ECDSA-AES128-GCM-SHA256 ECDH-ECDSA-AES256-GCM-SHA384 ECDH-RSA-AES128-GCM-SHA256 ECDH-RSA-AES256-GCM-SHA384
+    )
   end
 end