1_3_10 Section 1 – Attacks, Threats, and Vulnerabilities - 1.3 – Application Attacks - Other Application Attacks

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Questions and Answers

What type of memory vulnerability often results in the system crashing or the application failing?

  • Memory leak (correct)
  • Stack overflow
  • Buffer underflow
  • Pointer arithmetic

What happens when an application continues to use more and more memory without releasing it back to the system?

  • The application crashes (correct)
  • The application becomes more secure
  • The system allocates more memory
  • The system becomes faster

What does a null pointer dereference cause an application to do?

  • Crash (correct)
  • Speed up
  • Freeze
  • Become more efficient

How can an attacker create a denial of service attack by exploiting memory vulnerabilities?

<p>By causing a memory leak (D)</p> Signup and view all the answers

What happens when an application points to a null section of memory where no data exists?

<p>It crashes (C)</p> Signup and view all the answers

Which action does not lead to memory exhaustion and system crash?

<p>Memory deallocation (C)</p> Signup and view all the answers

What type of attack allows attackers to read from different parts of a server where they should not have access?

<p>Directory traversal attack (D)</p> Signup and view all the answers

In an integer overflow attack, what happens when a large number is placed into a smaller section of memory?

<p>The extra space overflows into another area of memory (B)</p> Signup and view all the answers

Why should application developers avoid storing information into smaller areas of memory?

<p>To prevent memory overflows (B)</p> Signup and view all the answers

What is a common way attackers manipulate memory to cause a denial of service?

<p>Overflowing memory buffers (A)</p> Signup and view all the answers

What potential danger might arise if error messages provide excessive system information?

<p>Security risk for attackers (B)</p> Signup and view all the answers

How can directory traversal attacks impact a server's security?

<p>Allow unauthorized access to server areas (A)</p> Signup and view all the answers

Why do attackers find integer overflows advantageous in manipulating systems?

<p>To gain an advantage in system manipulation (C)</p> Signup and view all the answers

How might misconfigurations on web servers lead to security vulnerabilities?

<p>By providing unauthorized access to server files (D)</p> Signup and view all the answers

What is the main concern with showing excessive information in error messages?

<p>Providing attackers with system details (D)</p> Signup and view all the answers

What could happen if a large number is placed into a smaller memory section during an integer overflow?

<p>The extra data spills over into other memory areas (A)</p> Signup and view all the answers

What type of attack is considered when an attacker manipulates the application programming interface of an application?

<p>API attack (D)</p> Signup and view all the answers

What may happen if very specific input is entered into a field in an application?

<p>Access to an entire database (D)</p> Signup and view all the answers

What is a zip bomb?

<p>A compressed file that drastically increases in size when uncompressed (D)</p> Signup and view all the answers

In what scenario might DHCP starvation occur?

<p>When flooding a network with IP address requests (A)</p> Signup and view all the answers

What is the goal of a denial of service attack?

<p>To render a service or application inaccessible (B)</p> Signup and view all the answers

What role do application developers play in relation to user input?

<p>Ensuring input is not malicious or compromising system security (C)</p> Signup and view all the answers

How can an attacker cause a denial of service through API manipulation?

<p>By overwhelming the application's resources (B)</p> Signup and view all the answers

What is the main concern for application developers regarding user input?

<p>Ensuring input integrity and preventing system vulnerabilities (A)</p> Signup and view all the answers

What makes a zip bomb particularly dangerous?

<p>It expands to an extremely large file size when uncompressed (B)</p> Signup and view all the answers

What impact would a zip bomb have on a traditional computer?

<p>Quickly consume all available storage space (C)</p> Signup and view all the answers

What type of attack occurs when an attacker sends many Mac addresses to flood a network with IP address requests?

<p>Resource exhaustion (B)</p> Signup and view all the answers

How does an API-based application typically differ from a traditional browser-based application in terms of communication with the server?

<p>API apps send many API requests to the server, while browser apps mainly use GET commands. (A)</p> Signup and view all the answers

What security risk arises from an attacker successfully manipulating an application's programming interface?

<p>Denial of service (B)</p> Signup and view all the answers

How can a zip bomb be described based on the provided information?

<p>A small file with large decompression size (D)</p> Signup and view all the answers

What makes a DHCP starvation attack particularly effective in using up IP addresses?

<p>Sending multiple Mac addresses to make it seem like many devices are requesting IPs (C)</p> Signup and view all the answers

What is the primary concern for application developers regarding data input by users?

<p>Preventing malicious input that could bypass security measures (A)</p> Signup and view all the answers

In what scenario might an error message revealing excessive system information pose a security risk?

<p>Providing detailed system logs to users (C)</p> Signup and view all the answers

What distinguishes resource exhaustion as a denial of service attack from other types of attacks?

<p>'DHCP starvations' depleting available resources (A)</p> Signup and view all the answers

How could an attacker exploit a null pointer dereference vulnerability to disrupt an application?

<p>'Null pointer dereference' causing a system crash (B)</p> Signup and view all the answers

How does a network-based resource exhaustion attack differ from resource exhaustion on a single device?

<p>It affects multiple systems by flooding network resources unlike single device attacks. (C)</p> Signup and view all the answers

What is a common technique used by attackers to manipulate memory in order to cause a denial of service?

<p>Integer overflow (A)</p> Signup and view all the answers

Why should application developers avoid storing information into smaller sections of memory?

<p>To prevent integer overflow vulnerabilities (A)</p> Signup and view all the answers

What vulnerability might allow attackers to browse outside the scope of a web server's file system?

<p>Directory traversal attack (A)</p> Signup and view all the answers

What type of attack occurs when a large number is placed into a smaller section of memory, resulting in the overflow of data into unintended areas?

<p>Integer overflow (B)</p> Signup and view all the answers

How might misconfigurations on web servers lead to security vulnerabilities?

<p>By facilitating directory traversal attacks (C)</p> Signup and view all the answers

What danger arises from error messages displaying excessive system information?

<p>Revealing underlying system details to attackers (B)</p> Signup and view all the answers

What happens if an attacker successfully performs a directory traversal attack on a web server?

<p>Access to unauthorized server areas is granted (C)</p> Signup and view all the answers

How do attackers manipulate memory to facilitate a denial of service?

<p>Triggering an overflow of data in memory (C)</p> Signup and view all the answers

What is the main concern associated with the display of excessive information in error messages?

<p>Revealing too much system information (D)</p> Signup and view all the answers

What potential threat do integer overflows pose to systems?

<p>Cause system instability and denial of service (B)</p> Signup and view all the answers

What type of memory vulnerability results in the system crashing or the application failing?

<p>Memory leak (B)</p> Signup and view all the answers

What could an attacker achieve by causing a memory leak in an application?

<p>Cause a denial of service (B)</p> Signup and view all the answers

What is the term used when an application points to a null section of memory where no data exists?

<p>Null pointer dereference (C)</p> Signup and view all the answers

Which scenario might lead to a denial of service attack by exploiting memory vulnerabilities?

<p>Memory exhaustion through a leak (B)</p> Signup and view all the answers

What could happen if an attacker makes an application point to a null memory section?

<p>Cause the application to crash (D)</p> Signup and view all the answers

In what way does a memory leak differ from normal memory usage in applications?

<p>Memory is never returned to the system (D)</p> Signup and view all the answers

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