/etc/apache2/conf.d/dpkg-www is in dpkg-www 2.54+nmu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 | # Apache config for dpkg-www
# Disable execution of dpkg from remote hosts
<Location /cgi-bin/dpkg>
    order deny,allow
    deny from all
    allow from localhost 127.0.0.1
    # allow from .your_domain.com
</Location>
# End dpkg-www config
 |