/usr/share/zentyal/stubs/network/chap-secrets.mas is in zentyal-network 2.3.13+quantal1.
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 | # Secrets for authentication using CHAP
# client server secret IP addresses
# PPPOE_CONFIG #
# PPPOE_CONFIG #
# PPTP_CONFIG #
# PPTP_CONFIG #
|