User Account

All Pages

Common Vulnerabilities, Python Programming

Assignment Help:
1 Low Level Exploits
1.1 Savegames
Jimmy is becoming increasingly frustrated at the computer game hes playing.
He has a save right before the levels boss but he needs either more health
or more gold in order to win. The game is loaded from a normal file on disk
but the health and gold are encrypted in some complicated fashion. The
1
characters name is not, however.
1. Set the characters gold or health to a number greater than 9000 by
utilising a buffer overflow. How did you achieve this? Explain using
reference to bytes and ASCII as to what the exact value was that you
achieved. [4 marks]
2. How could this exploit be prevented? [2 marks]
3. Could this exploit be useful for more than just the game? Could it be
used to gain access to a system? If not, why not? If so, where might it
be used? [4 marks]
1.2 General Questions [11 marks]
1. Why is it necessary for us to provide the flag -fno-stack-protector to
GCC? What is a canary in terms of a buffer overflow and how can a
canary prevent a buffer overflow exploit? [4 marks]
2. If the game above was written in Java instead of C, would the savegame
still be exploitable? [2 marks]
3. Imagine you were exploiting a program that was running with escalated
privileges (i.e. could read sensitive files, modify other users settings and
so on) is it possible to obtain a BASH shell using buffer overflows? Be
sure to explain what shellcode is and how the shellcode is executed1
.
[5 marks]
2 SQL Exploits (10 marks)
1. Show how it is possible to log in as any user by performing an SQL
injection attack on the username/password login page. [2 marks]
2. The website has been clued in on their major security problem and prevented
the previous attack. Is it possible to use the status query to work
out the password of one of the administrators Bobby2
? [4 marks]
1The traditional introduction to this topic is Smashing The Stack For Fun And Profit:
https://www.phrack.com/issues.html?issue=49&id=14
2SQLite (the database in use here) doesnt allow multiple SQL statements to be executed
in a single execute query consider using substr and subqueries
2
3. How can these attacks be prevented? Is it a difficult security problem
to fix? Why is it so common? [4 marks]

Related Discussions:- Common Vulnerabilities

Bit Stuffing, How to write program on bit stuffing using python?

How to write program on bit stuffing using python?

Common Vulnerabilities, 1 Low Level Exploits 1.1 Savegames Jimmy is becomi...

1 Low Level Exploits 1.1 Savegames Jimmy is becoming increasingly frustrated at the computer game hes playing. He has a save right before the levels boss but he needs either more

Question, Data array A has data series from 1,000,000 to 1 with step size 1...

Data array A has data series from 1,000,000 to 1 with step size 1, which is in perfect decreasing order. Data array B has data series from 1 to 1,000,000, which is in random order.

Tower of Hanoi, Tower of Hanoi game that you can let a player to move discs...

Tower of Hanoi game that you can let a player to move discs between the towers using a mouse. Moreover, you are required to do the followings: •Graphically represent any state in t

Variables, Variables We cannot  go very far without variables. A variabl...

Variables We cannot  go very far without variables. A variable is a value related to a name that we can bind  to have a particular value  and  then  later use in an expression.

Python implementation of a solver for the desert crossing, Assume you have ...

Assume you have a truck which has to travel across a desert from the base camp at position 0 (left) to the target camp at position 4 (right). The intermediate positions 1,2, and 3

assignment 10, #question.Program 10 Assignment (Banking Objects – Savings/...

#question.Program 10 Assignment (Banking Objects – Savings/Checking Accounts) Create a program named 10.py that performs the following: Create a class named ChkAcct, and a class n

Driven rlc circuit and damped tlc circuit, Write a program on python to gi...

Write a program on python to give solution for driven and damped rlc circuit

Python programming, Suppose the cover price of a book is $24.95, but bookst...

Suppose the cover price of a book is $24.95, but bookstores get a 40% discount. Shipping costs $3 for the first copy and 75 cents for each additional copy. What is the total whol

Programming, We sell pdf''s from our site and pdfs can be ordered from the ...

We sell pdf''s from our site and pdfs can be ordered from the site by selecting a book, putting it in a shopping cart, then signing in with a password or as a guest, and then check

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd