Podcast
Questions and Answers
What is a common attack mechanism that exploits buffer overflow vulnerabilities?
What is a common attack mechanism that exploits buffer overflow vulnerabilities?
- Denial of service
- Cross-site scripting
- Buffer overflow (correct)
- SQL injection
What is shellcode?
What is shellcode?
- Code used to overflow a buffer (correct)
- Code used to harden programs
- Code used to detect and abort attacks
- Code used to protect a system from attacks
What are the consequences of buffer overflow?
What are the consequences of buffer overflow?
- Loss of internet connection
- None of the above
- Physical damage to the computer
- Corruption of program data, unexpected transfer of control, and memory access violations (correct)
What is the traditional purpose of shellcode?
What is the traditional purpose of shellcode?
What are some prevention techniques for buffer overflow?
What are some prevention techniques for buffer overflow?
What are some targets of stack overflow variants?
What are some targets of stack overflow variants?
Which worms exploited buffer overflow vulnerabilities?
Which worms exploited buffer overflow vulnerabilities?
What are the two broad defense approaches against buffer overflows?
What are the two broad defense approaches against buffer overflows?
What is the aim of compile-time defenses?
What is the aim of compile-time defenses?
What happens when a process attempts to store data beyond the limits of a fixed-sized buffer?
What happens when a process attempts to store data beyond the limits of a fixed-sized buffer?
What are some safe coding techniques?
What are some safe coding techniques?
How can vulnerable programs be identified?
How can vulnerable programs be identified?
What can language extensions and safe libraries do?
What can language extensions and safe libraries do?
Which programming languages are vulnerable to buffer overflow?
Which programming languages are vulnerable to buffer overflow?
What are some common unsafe C standard library routines?
What are some common unsafe C standard library routines?
What do stack protection mechanisms do?
What do stack protection mechanisms do?
What is a stack buffer overflow?
What is a stack buffer overflow?
What is the aim of run-time defenses?
What is the aim of run-time defenses?
Are modern high-level languages vulnerable to buffer overflow?
Are modern high-level languages vulnerable to buffer overflow?
What can be done to achieve executable address space protection?
What can be done to achieve executable address space protection?
Flashcards are hidden until you start studying
Study Notes
- Buffer overflow is a common attack mechanism.
- Prevention techniques exist, but it is still a major concern due to buggy code and careless programming practices.
- The Morris Internet Worm, Code Red, Slammer, and Sasser worms all exploited buffer overflow vulnerabilities.
- Buffer overflow occurs when a process attempts to store data beyond the limits of a fixed-sized buffer.
- Consequences of buffer overflow include corruption of program data, unexpected transfer of control, and memory access violations.
- Identifying vulnerable programs can be done through inspection of program source, tracing program execution, and using tools such as fuzzing.
- Modern high-level languages are not vulnerable to buffer overflow, but have overhead and limits on use.
- C and related languages are vulnerable to buffer overflow and have a large legacy of widely used, unsafe code.
- Stack buffer overflows occur when the buffer is located on the stack.
- Some common unsafe C standard library routines include gets(), sprintf(), strcat(), and strcpy().
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
