add explicit error handling to base login scanner

Author: zgoldman-r7

lib/metasploit/framework/login_scanner/base.rb

@@ -251,8 +251,13 @@ def scan!
                   break if total_error_count >= 10
                 end
               end
-            rescue => e
-              elog('Attempt may not yield a result', error: e)
+            rescue Rex::ConnectionRefused, Rex::SocketError, Rex::HostCommunicationError, Rex::ConnectionError, Rex::TimeoutError, OpenSSL::Cipher::CipherError, Rex::ConnectionProxyError, Errno::ECONNRESET, Errno::EINTR, Errno::EPIPE, ::SystemCallError, ::EOFError, Errno::ENOTCONN, ::Timeout::Error, Rex::Proto::Kerberos::Model::Error::KerberosEncryptionNotSupported, ::JSON::ParserError, Errno::ECONNRESET, OpenSSL::SSL::SSLError, Rex::StreamClosedError, ::Rex::Proto::Kerberos::Model::Error::KerberosError, Errno::ETIMEDOUT => e
+              framework_module.print_error("Error, scan may not produce results: #{e.message}")
+              elog("Scan Error: #{e.message}", error: e)
+              consecutive_error_count += 1
+              total_error_count += 1
+              break if consecutive_error_count >= 3
+              break if total_error_count >= 10
             end
             nil
           end