There's a bug here, can you tell?

Need to be aware of what happens when no version is captured.

Author: sinn3r

modules/exploits/unix/webapp/invision_pboard_unserialize_exec.rb

@@ -29,7 +29,7 @@ def initialize(info = {})
 
 				The exploit has been tested successfully on Invision IP.Board 3.3.4.
 			},
-			'Author'	=>
+			'Author'         =>
 				[
 					'EgiX',         # Vulnerability discovery and PoC
 					'juan vazquez', # Metasploit module
@@ -74,6 +74,7 @@ def check
 		return Exploit::CheckCode::Unknown if not res
 
 		version = res.body.scan(/Community Forum Software by IP\.Board (\d+)\.(\d+).(\d+)/).flatten
+		return Exploit::CheckCode::Safe if version.empty?
 		version = version.map {|e| e.to_i}
 
 		# We only want major version 3