Accept propper formats for SSL version

we were only accepting sloppy string values and not accepting input of
the actual symbols that OpenSSL expects in the first place. Allow the
user to enter it right themselves to be compat with OpenSSL

lib/rex/socket/parameters.rb

@@ -140,7 +140,8 @@ class Rex::Socket::Parameters
 			self.ssl = false
 		end
 
-		if (hash['SSLVersion'] and hash['SSLVersion'].to_s =~ /^(SSL2|SSL3|TLS1)$/i)
+		supported_ssl_versions = ['SSL2', 'SSL23', 'TLS1', 'SSL3', :SSLv2, :SSLv3, :SSLv23, :TLSv1]
+		if (hash['SSLVersion'] and supported_ssl_versions.include? hash['SSLVersion'])
 			self.ssl_version = hash['SSLVersion']
 		end
 

lib/rex/socket/ssl_tcp.rb

@@ -65,6 +65,13 @@ begin
 				version = :SSLv23
 			when 'TLS1'
 				version = :TLSv1
+			# Handle the user supplying the correct syntax themselves
+			when :SSLv2
+				version = :SSLv2
+			when :SSLv23
+				version = :SSLv23
+			when :TLSv1
+				version = :TLSv1
 			end
 		end