Closed

Linux-based SMTP Server Stub/Test harness

This project was awarded to johnnycl for $75 USD.

Get free quotes for a project like this
Employer working
Awarded to:
Project Budget
$30 - $250 USD
Total Bids
8
Project Description

I need to have a stub or test harness created that allows for a client application to make a TCP connection to the server stub on a defined port (should be able to be set via command line option) and interact as if the server was an actual SMTP server. Specific response strings will be provided for each step in the SMTP process including a modification at the end to allow for a non-spec response. Specifically, if the "message" value includes the string "EXEC", the server should respond with "EXEC=TRUE" instead of:

250 OK
221 Closing Port / Mail queued for delivery

and wait for the client to terminate the connection rather than closing the connection on the server side. This is intended to simulate a backdoor application response to be used for demonstrating how to test for application vulnerabilities.

The server stub will not actually need to send any email, connect to any other SMTP system to forward data, or perform any other functions outside of providing these responses and logging any connection attempts. This logging should include _all_ interaction with the server stub including data received from the client as well as the server response.

I have no preference on language and this could be done using either compiled or scripted language. This needs to run on the most recent Ubuntu Linux distribution.

Looking to make some money?

  • Set your budget and the timeframe
  • Outline your proposal
  • Get paid for your work

Hire Freelancers who also bid on this project

    • Forbes
    • The New York Times
    • Time
    • Wall Street Journal
    • Times Online