AIX7-00-002141 - The AIX /etc/hosts file must be group-owned by system.

Information

Unauthorized group ownership of the /etc/hosts file can lead to the ability for a malicious actor to redirect traffic to servers of their choice. It is also possible to use the /etc/hosts file to block detection by security software by blocking the traffic to all the download or update servers of well-known security vendors.

Solution

Change the group ownership of the file to system using command:
# chgrp system /etc/hosts

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_IBM_AIX_7-x_V3R1_STIG.zip