I am using Moodle (2.8.5+ Build: 20150414) with webwork assignment activity module wwassignment6_ver2.8+ and wwlink6_ver2.8+
I have noticed that Moodle created users can ALSO access directly WeBWorK, i.e., without going via Moodle interface. Well, such a user gets WeBWorK Warnings:
Use of uninitialized value $possibleCryptPassword in string eq at /opt/webwork/webwork2/lib/WeBWorK/Authen.pm line 628.
However, if one disregards this message, such a user can access and do homeworks. Is it normal?
Can such direct logins be prevented for Moodle created users?