/usr/share/doc/libmyproxy-dev/extras/ is in libmyproxy-doc 6.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libmyproxy-dev/extras/login.html
/usr/share/doc/libmyproxy-dev/extras/myproxy-accepted-credentials-mapapp
/usr/share/doc/libmyproxy-dev/extras/myproxy-cert-checker
/usr/share/doc/libmyproxy-dev/extras/myproxy-certificate-mapapp
/usr/share/doc/libmyproxy-dev/extras/myproxy-certreq-checker
/usr/share/doc/libmyproxy-dev/extras/myproxy-crl.cron
/usr/share/doc/libmyproxy-dev/extras/myproxy-get-delegation.cgi
/usr/share/doc/libmyproxy-dev/extras/myproxy-get-trustroots.cron
/usr/share/doc/libmyproxy-dev/extras/myproxy-passphrase-policy
/usr/share/doc/libmyproxy-dev/extras/myproxy-revoke
/usr/share/doc/libmyproxy-dev/extras/myproxy.cron