Run a bash script using CFEXECUTE as a specific user

Is there a way for me to run a script with CFEXECUTE as a specific user? If I change the ColdFusion runtime user to the user required to run the bash script, it works, but I don't want my entire site to run as this user, only the page that will run the bash script. By default, 'nobody' is the user.

I've tried creating a starter script to issue the "su -c" command, but it does nothing. I've changed the permissions and added a sticky bit (+s), but CF will not run it as that user.

Is there anything else I can do?

For security reasons, I don't think you can do this from cfexecute. I believe you'll have to give the appropriate permissions to the user the CF service is running under to let it run the script.