/usr/share/cpl-plugins/ is in cpl-plugin-naco 4.4.1+dfsg-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/cpl-plugins/naco-4.4.1/
/usr/share/cpl-plugins/naco-4.4.1/dic/
/usr/share/cpl-plugins/naco-4.4.1/dic/ESO-DFS-DIC.NACO_QC
/usr/share/cpl-plugins/naco-4.4.1/dic/ESO-VLT-DIC.CONICA_ICS
/usr/share/cpl-plugins/naco-4.4.1/dic/ESO-VLT-DIC.NAOS_ICS
/usr/share/cpl-plugins/naco-4.4.1/dic/ESO-VLT-DIC.NAOS_IR
/usr/share/cpl-plugins/naco-4.4.1/dic/ESO-VLT-DIC.NAOS_OS
/usr/share/cpl-plugins/naco-4.4.1/dic/ESO-VLT-DIC.NAOS_PS
/usr/share/cpl-plugins/naco-4.4.1/dic/ESO-VLT-DIC.NAOS_RTC
/usr/share/cpl-plugins/naco-4.4.1/dic/ESO-VLT-DIC.NAOS_VIS
/usr/share/cpl-plugins/naco-4.4.1/gasgano/
/usr/share/cpl-plugins/naco-4.4.1/gasgano/config/
/usr/share/cpl-plugins/naco-4.4.1/gasgano/config/NACO.prefs
/usr/share/cpl-plugins/naco-4.4.1/gasgano/config/NACO.rul
/usr/share/cpl-plugins/naco-4.4.1/gasgano/config/naco.oca