diff --git a/modules/auxiliary/admin/officescan/tmlisten_traversal.rb b/modules/auxiliary/admin/officescan/tmlisten_traversal.rb
index 46da0d97fd..edc05e66b0 100644
--- a/modules/auxiliary/admin/officescan/tmlisten_traversal.rb
+++ b/modules/auxiliary/admin/officescan/tmlisten_traversal.rb
@@ -51,6 +51,11 @@ class Metasploit3 < Msf::Auxiliary
 				'method'  => 'GET',
 			}, 20)
 
+		if not res
+			print_error("No response from server")
+			return
+		end
+
 		http_fingerprint({ :response => res })
 
 		if (res.code >= 200)
diff --git a/modules/auxiliary/dos/http/sonicwall_ssl_format.rb b/modules/auxiliary/dos/http/sonicwall_ssl_format.rb
index 49d141a235..7cbe47c42a 100644
--- a/modules/auxiliary/dos/http/sonicwall_ssl_format.rb
+++ b/modules/auxiliary/dos/http/sonicwall_ssl_format.rb
@@ -58,7 +58,7 @@ class Metasploit3 < Msf::Auxiliary
 				'uri' => datastore['URI'] + fmt,
 			})
 
-			if res.code == 200
+			if res and res.code == 200
 				res.body.scan(/\<td class\=\"loginError\"\>(.+)XX/ism)
 				print_status("Information leaked: #{$1}")
 			end
diff --git a/modules/auxiliary/scanner/http/ektron_cms400net.rb b/modules/auxiliary/scanner/http/ektron_cms400net.rb
index 9ed7d41267..4f9c0c22d1 100644
--- a/modules/auxiliary/scanner/http/ektron_cms400net.rb
+++ b/modules/auxiliary/scanner/http/ektron_cms400net.rb
@@ -67,7 +67,7 @@ class Metasploit3 < Msf::Auxiliary
 
 			#Check for HTTP 200 response.
 			#Numerous versions and configs make if difficult to further fingerprint.
-			if (res.code == 200)
+			if (res and res.code == 200)
 				print_status("Ektron CMS400.NET install found at #{target_url}  [HTTP 200]")
 
 				#Gather __VIEWSTATE and __EVENTVALIDATION from HTTP response.
diff --git a/modules/auxiliary/scanner/http/sap_businessobjects_user_brute.rb b/modules/auxiliary/scanner/http/sap_businessobjects_user_brute.rb
index 51accf67d5..526adfc1c5 100644
--- a/modules/auxiliary/scanner/http/sap_businessobjects_user_brute.rb
+++ b/modules/auxiliary/scanner/http/sap_businessobjects_user_brute.rb
@@ -89,8 +89,8 @@ class Metasploit3 < Msf::Auxiliary
 						'Content-Type'  => 'text/xml; charset=UTF-8',
 					}
 			}, 45)
-			return :abort if (res.code == 404)
-			success = true if(res.body.match(/SessionInfo/i))
+			return :abort if (!res or (res and res.code == 404))
+			success = true if(res and res.body.match(/SessionInfo/i))
 			success
 
 		rescue ::Rex::ConnectionError
diff --git a/modules/auxiliary/scanner/http/sap_businessobjects_user_brute_web.rb b/modules/auxiliary/scanner/http/sap_businessobjects_user_brute_web.rb
index e7c35ce747..37a9d4e42b 100644
--- a/modules/auxiliary/scanner/http/sap_businessobjects_user_brute_web.rb
+++ b/modules/auxiliary/scanner/http/sap_businessobjects_user_brute_web.rb
@@ -75,7 +75,7 @@ class Metasploit3 < Msf::Auxiliary
 								'Accept-Encoding' => "gzip,deflate",
 							},
 			}, 45)
-			return :abort if (res.code != 200)
+			return :abort if (!res or (res and res.code != 200))
 			if(res.body.match(/Account Information/i))
 				success = false
 			else
diff --git a/modules/auxiliary/scanner/http/sap_businessobjects_user_enum.rb b/modules/auxiliary/scanner/http/sap_businessobjects_user_enum.rb
index 3d97d8c46f..93bbc821c5 100644
--- a/modules/auxiliary/scanner/http/sap_businessobjects_user_enum.rb
+++ b/modules/auxiliary/scanner/http/sap_businessobjects_user_enum.rb
@@ -93,8 +93,8 @@ class Metasploit3 < Msf::Auxiliary
 			}, 45)
 
 			if res
-				return :abort if (res.code == 404)
-				success = true if(res.body.match(/Invalid password/i))
+				return :abort if (!res or (res and res.code == 404))
+				success = true if(res and res.body.match(/Invalid password/i))
 				success
 			else
 				vprint_error("[SAP BusinessObjects] No response")
diff --git a/modules/auxiliary/scanner/sap/sap_mgmt_con_brute_login.rb b/modules/auxiliary/scanner/sap/sap_mgmt_con_brute_login.rb
index d3972a086c..25fd8950e2 100644
--- a/modules/auxiliary/scanner/sap/sap_mgmt_con_brute_login.rb
+++ b/modules/auxiliary/scanner/sap/sap_mgmt_con_brute_login.rb
@@ -126,6 +126,8 @@ class Metasploit4 < Msf::Auxiliary
 					}
 			}, 45)
 
+			return if not res
+
 			if (res.code != 500 and res.code != 200)
 				return
 			else
diff --git a/modules/exploits/unix/webapp/dogfood_spell_exec.rb b/modules/exploits/unix/webapp/dogfood_spell_exec.rb
index 1f0d91ae35..abe79ede7d 100644
--- a/modules/exploits/unix/webapp/dogfood_spell_exec.rb
+++ b/modules/exploits/unix/webapp/dogfood_spell_exec.rb
@@ -70,7 +70,7 @@ class Metasploit3 < Msf::Exploit::Remote
 				'uri' => datastore['URIPATH'],
 			}, 1)
 
-		if (res.body =~ /Spell Check complete/)
+		if (res and res.body =~ /Spell Check complete/)
 			return Exploit::CheckCode::Detected
 		end
 		return Exploit::CheckCode::Safe