Welcome to the Auditing Program Binaries MCQs Page

Dive deep into the fascinating world of Auditing Program Binaries with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Auditing Program Binaries, a crucial aspect of Reverse Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Auditing Program Binaries, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Reverse Engineering.

Check out the MCQs below to embark on an enriching journey through Auditing Program Binaries. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Reverse Engineering.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Auditing Program Binaries. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Auditing Program Binaries MCQs | Page 6 of 8

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Q51.

Which operating systems support nonexecutable memory?

Windows XP Service Pack 1 and above

Solaris 2.5 and above

Linux kernel without any patches

Windows XP Service Pack 2 and above, Solaris 2.6 and above, and several patches implemented for the Linux kernel

Discuss

Answer: (d).Windows XP Service Pack 2 and above, Solaris 2.6 and above, and several patches implemented for the Linux kernel Explanation:Windows XP Service Pack 2 and above, Solaris 2.6 and above, and several patches implemented for the Linux kernel support nonexecutable memory.

Q52.

Does nonexecutable memory completely eliminate the problem of buffer overflow attacks?

Yes, it completely eliminates the problem

No, attackers can still overcome the hurdles imposed by nonexecutable memory systems

Nonexecutable memory is not related to buffer overflow attacks

None of the above

Discuss

Answer: (b).No, attackers can still overcome the hurdles imposed by nonexecutable memory systems Explanation:Nonexecutable memory doesn’t exactly invalidate the whole concept of buffer overflow attacks. Attackers can still overcome the hurdles imposed by nonexecutable memory systems as long as a vulnerable piece of code is found.

Q53.

What is the most popular strategy for attackers to overcome the hurdles imposed by nonexecutable memory systems?

Modifying the function’s return address to point to a well-known function that helps attackers gain control over the process

Creating a buffer overflow to run code on nonexecutable memory

Disabling the nonexecutable memory feature on the processor

None of the above

Discuss

Answer: (a).Modifying the function’s return address to point to a well-known function that helps attackers gain control over the process Explanation:The most popular strategy for attackers to overcome the hurdles imposed by nonexecutable memory systems is to modify the function’s return address to point to a well-known function that helps attackers gain control over the process. This is often called return-to-libc.

Q54.

Which option is used for returning values to the caller in functions?

Memory address

Stack address

Global address

None of the above

Discuss

Answer: (a).Memory address Explanation:The option used for returning values to the caller in functions is a memory address.

Q55.

Which type of vulnerability is required for an attacker to exploit the buffer overflow bug?

Underflow vulnerability

Overflow vulnerability

Input validation vulnerability

None of the above

Discuss

Answer: (b).Overflow vulnerability Explanation:In order to exploit the vulnerability, attackers must locate a function that passes values back to the caller using parameters and that has an overflow bug.

Q56.

What is the purpose of stack-checking mechanisms embedded into programs?

To completely eliminate buffer overflow bugs

To reduce the total number of possible exploits in a program

To increase the number of possible exploits in a program

None of the above

Discuss

Answer: (b).To reduce the total number of possible exploits in a program Explanation:Even though stack checking does not completely eliminate the problem, it somewhat reduces the total number of possible exploits in a program.

Q57.

What is a heap overflow?

It is a type of attack that targets the heap block structure of a program

It is a type of attack that targets the stack structure of a program

It is a type of attack that targets the heap and the stack structure of a program

It is a type of attack that targets the program's input validation process

Discuss

Answer: (a).It is a type of attack that targets the heap block structure of a program Explanation:A heap overflow is a type of attack that targets the heap block structure of a program.

Q58.

How does a heap overflow attack work?

Programs receive data of an unexpected length and copy it into a buffer that's too small to contain it, causing the program to overwrite whatever it is that follows the heap block in memory.

Programs receive data of an expected length and copy it into a buffer that's too small to contain it, causing the program to overwrite whatever it is that follows the heap block in memory.

Programs receive data of an unexpected length and copy it into a buffer that's large enough to contain it, causing the program to overwrite whatever it is that follows the heap block in memory.

Programs receive data of an expected length and copy it into a buffer that's large enough to contain it, causing the program to overwrite whatever it is that follows the heap block in memory.

Discuss

Answer: (a).Programs receive data of an unexpected length and copy it into a buffer that's too small to contain it, causing the program to overwrite whatever it is that follows the heap block in memory. Explanation:Heap overflow attacks work by programs receiving data of an unexpected length and copying it into a buffer that's too small to contain it, causing the program to overwrite whatever it is that follows the heap block in memory.

Q59.

How are heaps arranged?

As linked lists

As arrays

As stacks

As queues

Discuss

Answer: (a).As linked lists Explanation:Heaps are arranged as linked lists, where the pointers to the next and previous heap blocks are placed either right before or right after the actual block data.

Q60.

What causes the program to crash in a heap overflow attack?

The heap manager traverses the linked list

The stack manager traverses the linked list

The heap manager overwrites the linked list

The stack manager overwrites the linked list

Discuss

Answer: (a).The heap manager traverses the linked list Explanation:In a heap overflow attack, the program crashes as soon as the heap manager traverses the linked list, in order to free a block for example.

Page 6 of 8

Low Level Software 🔒

Windows Fundamentals 🔒

Reversing Tools 🔒

Reversing Malware 🔒

Antireversing Techniques 🔒

Breaking Protections 🔒

Reversing .NET 🔒

Deciphering Code Structures 🔒

Deciphering Program Data 🔒

Welcome to the Auditing Program Binaries MCQs Page

Auditing Program Binaries MCQs | Page 6 of 8

Explore more Topics under Reverse Engineering

Introduction to Reverse Engineering

Beyond the Documentation

Deciphering File Formats

Piracy and Copy Protection

Decompilation

Understanding Compiled Arithmetic

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