/usr/share/perl/5.24.1/CPAN/ is in perl-modules-5.24 5.24.1-3+deb9u5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl/5.24.1/CPAN/API/
/usr/share/perl/5.24.1/CPAN/API/HOWTO.pod
/usr/share/perl/5.24.1/CPAN/Author.pm
/usr/share/perl/5.24.1/CPAN/Bundle.pm
/usr/share/perl/5.24.1/CPAN/CacheMgr.pm
/usr/share/perl/5.24.1/CPAN/Complete.pm
/usr/share/perl/5.24.1/CPAN/Debug.pm
/usr/share/perl/5.24.1/CPAN/DeferredCode.pm
/usr/share/perl/5.24.1/CPAN/Distribution.pm
/usr/share/perl/5.24.1/CPAN/Distroprefs.pm
/usr/share/perl/5.24.1/CPAN/Distrostatus.pm
/usr/share/perl/5.24.1/CPAN/Exception/
/usr/share/perl/5.24.1/CPAN/Exception/RecursiveDependency.pm
/usr/share/perl/5.24.1/CPAN/Exception/blocked_urllist.pm
/usr/share/perl/5.24.1/CPAN/Exception/yaml_not_installed.pm
/usr/share/perl/5.24.1/CPAN/Exception/yaml_process_error.pm
/usr/share/perl/5.24.1/CPAN/FTP/
/usr/share/perl/5.24.1/CPAN/FTP.pm
/usr/share/perl/5.24.1/CPAN/FTP/netrc.pm
/usr/share/perl/5.24.1/CPAN/FirstTime.pm
/usr/share/perl/5.24.1/CPAN/HTTP/
/usr/share/perl/5.24.1/CPAN/HTTP/Client.pm
/usr/share/perl/5.24.1/CPAN/HTTP/Credentials.pm
/usr/share/perl/5.24.1/CPAN/HandleConfig.pm
/usr/share/perl/5.24.1/CPAN/Index.pm
/usr/share/perl/5.24.1/CPAN/InfoObj.pm
/usr/share/perl/5.24.1/CPAN/Kwalify/
/usr/share/perl/5.24.1/CPAN/Kwalify.pm
/usr/share/perl/5.24.1/CPAN/Kwalify/distroprefs.dd
/usr/share/perl/5.24.1/CPAN/Kwalify/distroprefs.yml
/usr/share/perl/5.24.1/CPAN/LWP/
/usr/share/perl/5.24.1/CPAN/LWP/UserAgent.pm
/usr/share/perl/5.24.1/CPAN/Meta/
/usr/share/perl/5.24.1/CPAN/Meta.pm
/usr/share/perl/5.24.1/CPAN/Meta/Converter.pm
/usr/share/perl/5.24.1/CPAN/Meta/Feature.pm
/usr/share/perl/5.24.1/CPAN/Meta/History/
/usr/share/perl/5.24.1/CPAN/Meta/History.pm
/usr/share/perl/5.24.1/CPAN/Meta/History/Meta_1_0.pod
/usr/share/perl/5.24.1/CPAN/Meta/History/Meta_1_1.pod
/usr/share/perl/5.24.1/CPAN/Meta/History/Meta_1_2.pod
/usr/share/perl/5.24.1/CPAN/Meta/History/Meta_1_3.pod
/usr/share/perl/5.24.1/CPAN/Meta/History/Meta_1_4.pod
/usr/share/perl/5.24.1/CPAN/Meta/Merge.pm
/usr/share/perl/5.24.1/CPAN/Meta/Prereqs.pm
/usr/share/perl/5.24.1/CPAN/Meta/Requirements.pm
/usr/share/perl/5.24.1/CPAN/Meta/Spec.pm
/usr/share/perl/5.24.1/CPAN/Meta/Validator.pm
/usr/share/perl/5.24.1/CPAN/Meta/YAML.pm
/usr/share/perl/5.24.1/CPAN/Mirrors.pm
/usr/share/perl/5.24.1/CPAN/Module.pm
/usr/share/perl/5.24.1/CPAN/Nox.pm
/usr/share/perl/5.24.1/CPAN/Plugin/
/usr/share/perl/5.24.1/CPAN/Plugin.pm
/usr/share/perl/5.24.1/CPAN/Plugin/Specfile.pm
/usr/share/perl/5.24.1/CPAN/Prompt.pm
/usr/share/perl/5.24.1/CPAN/Queue.pm
/usr/share/perl/5.24.1/CPAN/Shell.pm
/usr/share/perl/5.24.1/CPAN/Tarzip.pm
/usr/share/perl/5.24.1/CPAN/URL.pm
/usr/share/perl/5.24.1/CPAN/Version.pm