Red Hat Security Advisory 2018-3249-01

Red Hat Security Advisory 2018-3249-01 – The setup package contains a set of important default system configuration and setup files. Examples include /etc/passwd, /etc/group, and /etc/profile. Other examples are the default lists of reserved user IDs, reserved ports, reserved protocols, allowed shells, allowed secure terminals. Issues addressed include a nologin listed in /etc/shells violating security expectations.

Link: https://packetstormsecurity.com/files/150045/RHSA-2018-3249-01.txt