A cybersecurity analyst is currently investigating a server outage. The analyst has discovered the following value was entered f
or the username: 0xbfff601a. Which of the following attacks may be occurring? (A) Buffer overflow attack
(B) Man-in-the-middle attack
(C) Smurf attack
(D) Format string attack
(E) Denial of service attack
Format string attack is the type of attack that causes to change the application functioning .This attack access the memory of the string library. It occurs while the submission of the string as input and then gets tested due to application command.
Other options are incorrect because these are the attacks that don't happens in the application for the alteration of the flow. Thus, the correct option is option(D).