During a routine vulnerability assessment, the following command was successful: echo "vrfy ‘perl -e ‘print "hi" x 500 ‘ ‘ " | nc www.company.com 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 www.company.com
D. Race condition in a UNIX shell script