CompTIA Security Exam Practice Questions Sample SY0 501 Q410

During a routine vulnerability assessment, the following command was successful:

echo “vrfy ‘perl -e ‘print “hi” x 500 ‘ ‘ ” | nc 25

Which of the following vulnerabilities is being exploited?

A. Buffer overflow directed at a specific host MTA
B. SQL injection directed at a web server
C. Cross-site scripting directed at
D. Race condition in a UNIX shell script

Correct Answer: A