Assignment

In this assessment you will make a program in Java. You will show what the security bug is, how to detect and mitigate it.

The program should contain the vulnerability that you have selected. You should write tests that cover all the functionality within your program (these tests are later used to verify that the patched version hasn’t lost any functionality).

You should create a patch branch in this repository. The patch branch should contain a patched version of your program.

Along with your program, you should provide a proof of concept to demonstrate the vulnerability. This can be done in the following way:

Unit/Integration test: write unit tests or integration tests that shows the security bug and later it fails. The test fails because the program is vulnerable. Your patched program will pass this test.

Use this repository as a template for your program. clone this repository locally on your computer. Your program main code should go to src directory. Your tests should go to test directory.

Important

Do not publicly Fork this repository. Do everything locally on your computer.

Submission

See Blackboard.

Development

This repository contain a sample Java program The program is vulnerable to Numeric Overflow.

You can use it as a template for your program.

Requirements

Install docker and make on your system.

Usage

1. Build the program: make build.

2. Run it: make run.

3. Run unit tests: make test.

4. Run security tests: make securitytest.

Note	The last test will fail.