CompTIA CySA+ Exam CS0-002: Identifying and Mitigating Memory Consumption Attacks

Memory Consumption Attack

Question

A security analyst received a SIEM alert regarding high levels of memory consumption for a critical system.

After several attempts to remediate the issue, the system went down.

A root cause analysis revealed a bad actor forced the application to not reclaim memory.

This caused the system to be depleted of resources.

Which of the following BEST describes this attack?

Answers

Explanations

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A. B. C. D.

B.

https://economictimes.indiatimes.com/definition/memory-corruption
Definition: Memory corruption can be described as
the vulnerability that may occur in a computer
system when its memory is altered without an
explicit assignment. The contents of a memory
location are modified due to programming errors
which enable attackers to execute an arbitrary code.

Description: Memory corruption bugs mostly occur
in low-level programming languages like C or C++. It
is one of the problems that existed for more than 30
years when it comes to the subject of computer
security, The lack of memory safety (or type safety) in
such languages allows attackers to exploit memory
bugs by altering the program's behavior or by even
taking full control.

The BEST description of the attack that caused the system to go down due to high levels of memory consumption is Denial of Service (DoS) attack.

A Denial of Service attack is a type of cyber attack that aims to make a computer or network resource unavailable to its intended users. The attacker floods the system with traffic, requests, or other activities that consume resources such as CPU cycles, memory, or network bandwidth until the system becomes overwhelmed and can no longer function.

In this scenario, the bad actor forced the application to not reclaim memory, causing the system to be depleted of resources. This action could be considered a form of resource exhaustion, which is a type of Denial of Service attack. By not allowing the application to reclaim memory, the attacker is causing the system to become overwhelmed and eventually crash.

Injection attacks involve malicious code or commands being injected into a system or application to exploit a vulnerability. Memory corruption occurs when an attacker exploits a vulnerability to modify data stored in memory to perform unauthorized actions. An array attack is a type of buffer overflow attack that exploits a vulnerability in an array or other data structure.

In summary, the attack described in the scenario is a form of Denial of Service attack that caused the system to go down due to resource exhaustion.