June 8, 2015
Race Condition Vulnerability Lab

Race Condition Vulnerability Lab

Lab Overview The learning objective of this lab is for students to gain the first-hand experience on the race-condition vulnerability by putting what they have learned about the vulnerability from class into actions. A race condition occurs when multiple processes access and manipulate the same data concurrently, and the outcome of the execution depends on the particular order in which the access takes place. If a privileged program has a race-condition vulnerability, attackers can run a parallel process to “race” against the privileged program, with an intention to change the behaviors of the program. In this lab, students will be given a program with a race-condition vulnerability; their task is to develop a scheme to exploit the vulnerability and gain the root privilege. In addition to the attacks, students will be guided to walk through several protection schemes that can be used to counter the race-condition attacks. Students need to evaluate whether the schemes work or not and explain why

June 6, 2015
Logic Plan

Introduction

In this project, your Pacman agent will logically plan his way to the goal. You will write software that generates the logical sentences describing moving, eating, and (predictable) ghosts. You will encode initial states and goals and use logical inference to find action sequences that are consistent with these.

This diagram outlines the different steps of the propositional logic planning process.

 

As in Projects 0 and 1, this project includes an autograder for you to grade your answers on your machine. This can be run with the command:

python autograder.py

See the autograder tutorial in Project 0 for more information about using the autograder.

The code for this project consists of several Python files, some of which you will need to read and understand in order to complete the assignment, and some of which you can ignore.