____ _               _      _____                 _ _   ____                     __ 
 / ___| |__   ___  ___| | __ | ____|_ __ ___   __ _(_) | / ___| _ __   ___   ___  / _|
| |   | '_ \ / _ \/ __| |/ / |  _| | '_ ` _ \ / _` | | | \___ \| '_ \ / _ \ / _ \| |_ 
| |___| | | |  __/ (__|   <  | |___| | | | | | (_| | | |  ___) | |_) | (_) | (_) |  _|
 \____|_| |_|\___|\___|_|\_\ |_____|_| |_| |_|\__,_|_|_| |____/| .__/ \___/ \___/|_|  
                                                               |_|                    

The objective of this project is to automate email spoof vulnerability checking. The app checks the DNS txt records of the host entered to make the decision. OWASP top ten - Misconfiguration

Disclaimer

I am not responsible for the misuse of the project.
I want to make the internet safer, so I posted it here to help 
other developers find this vulnerability and fix it.

USE WITH RESPONSABILITY!

Dependencies

• Go lang

Install external dependencies:

$ go get

1.1 - Run project

  $ go run src/main.go

1.2 - Choose option

############ ENTER OPTION ############
[1] - Check vulnerability an host
[2] - Make send test email
[0] - Exit
########################################

2 - Option [1]:

Enter to host:
example: example.com

result:

+ The host be safe.
or
! The host IS VULNERABLE!

2.1 - Option [2]:

Fake email

Enter the fake email you would like to test.

Enter to fake email to test:
example: admin@example.com

From email

Enter the email that will be used to send.
Here you need a valid email.

Warning: Use your private and not public email: @gmail, @yahoo, @hotmail, @live and others.
These big public servers won't let you run the spoof process.

Enter to from email:
example: senderemail@mydomain.com

Password

Enter the password from the email you entered in the previous step.

Enter to from password:
example: myP@ssw0rd

SMTP Server

Enter your SMTP or mail sending server with the server.

Enter to from smtp server:
example: smtp.mydomain.com

Port

Enter to from port:
example: 465

Receive email

Enter the email you want to receive the message.

Enter to email:
example: my-email-receiver@gmail.com

result:

+ Email Sent Successfully!.
or
! Error

I found a vulnerable host, now what?

• Report!
• To fix the fault, just change the spf registry: ~all or ?all to -all

Roadmap

• Use docker

Author

• Harrisson Ricardo Biaggio