Verify Non-Interactive Accounts Are Locked
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Description
Accounts meant for non-interactive purposes should be locked to prevent
unauthorized access. Accounts with non-standard shells (those not defined in
/etc/shells
) should be locked using usermod -L
.
Rationale
Locking non-interactive accounts improves security by preventing potential
misuse. While many systems configure these accounts with invalid strings,
setting the shell field to nologin
is also suggested
Warning
Automatic remediation of this control is not recommended. Locking system accounts
could be highly disruptive.