After gaining initial low-privilege access to a Linux system, a penetration tester identifies an interesting binary in a user's home folder titled ''changepass."
-sr-xr-x 1 root root 6443 Oct 18 2017 /home/user/changepass
Using "strings" to print ASCII printable characters from changepass, the tester notes the following:
$ strings changepass
exit
setuid
strcmp
GLIBC_2.0
ENV_PATH
% s/changepw
malloc
strlen
Given this information, which of the following is the MOST likely path of exploitation to achieve root privileges on the machine?