While attempting to stig vCenter servers you may attempt to run /opt/vmware/cap_lighttpd/sbin/lighttpd commands. However running any of these commands prompts for a password and no matter what password is entered the command ends.
vCenter 8.0x
This occurs when the default shell is appliance shell.
Set bash as default shell with the process found in the following article in the section "Switching the vCenter Server Appliance 6.x to BASH Shell":