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CEPT Exam 2 (2024) – All Questions & Answers (100% Correct)
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CEPT Exam 2 (2024) – All Questions & Answers (100% Correct) CEPT Exam 2 (2024) – All Questions & Answers (100% Correct) What protocol does Moon bouncing use? - ANSWER - ICMP What format string specifier is used to overwrite an address? - ANSWER - %n Where can buffer overflows occur? -...

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  • March 1, 2024
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  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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CEPT Exam 2 (2024) – All Questions &
Answers (100% Correct)
What protocol does Moon bouncing use? - ANSWER - ICMP
What format string specifier is used to overwrite an address? - ANSWER - %n
Where can buffer overflows occur? - ANSWER - heap, stack, kernel memory
Why are fuzzers popular? - ANSWER - They are adept at finding buffer overrun possibilities.
Why are format string vulnerabilities not as widely exploited? - ANSWER - They are newer, less-known
What does the EBP contain - ANSWER - The Electronic Base Pointer
What does the POP instruction do? - ANSWER - Takes the value pointed to by the ESP
and places it in a specific location.
What does the GetDriveA API do? - ANSWER - Returns the drive currently inserted into
the computer.
What does bind shell shellcode do? - ANSWER - Opens a socket and connects back to the attacker.
How can an IPS be attacked? - ANSWER - By creating a flood of false alerts.
Fuzzers can find what? - ANSWER - Vulnerabilities you were not looking for.
How does passive traffic observation recon work? - ANSWER - Observing network traffic and determining OS versions.
How can you fill the EAX with nulls? - ANSWER - XOR EAX, EAX
What tool can be used to attack IPS systems? - ANSWER - Sneeze
Why is the CALL instruction important? - ANSWER - It saves the EIP onto the stack.
Is attaching a memory resident debugger part of the three stages of software cracking? - ANSWER - No.
What does the %s format string do? - ANSWER - Allows you to write memory to an arbitrary location. What does the EIP register point to? - ANSWER - The next instruction to be executed.
What do Off-by-one overflows overwrite? - ANSWER - The saved EBP.
How do stack overflows work? - ANSWER - Overwriting the saved EIP on the stack with
one that points to an address with shellcode.
What is IDA Pro? - ANSWER - A popular disassembler.
Can DLL's be executable modules? - ANSWER - Yes
How can yo write shellcode that will evade an IDS? - ANSWER - Obsucring the NOP sled.
Are Fault Injection and Fuzzing essentially the same thing? - ANSWER - Yes
What do debuggers do? - ANSWER - Allow you to modify the runtime nature of a program.
What are software breakpoints set with? - ANSWER - 0xCC
What is the best way to to fill a register with nulls when writing shellcode? - ANSWER - Add a non-null value to the regsiter, then subtract the same value from the register.
Can PSExec execute programs remotely? - ANSWER - Yes
What is the hex representation for the ASCII characer A? - ANSWER - 41
What do application breakpointing API calls allow you to do when reverse engineering a
Windows application? - ANSWER - Halt a program when user input is received.
What does IDA Pro use to determine which compiler created a program? - ANSWER - Start Code
What is an encrypted version of netcat - ANSWER - cryptcat
What is Metasploit - ANSWER - An exploitation framework
What are one of the big problems with IDS? - ANSWER - False positivies
Theopcode for NOP is: - ANSWER - x90
Why can you overwrite subsequent blocks in heap memory? - ANSWER - It is contiguous, if one block does not do proper bounds checking.

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