6.2.1 Ensure password fields are not empty

Information

An account with an empty password field means that anybody may log in as that user without providing a password.
Rationale:
All accounts must have passwords or be locked to prevent the account from being used by an unauthorized user.

Solution

If any accounts in the /etc/shadow file do not have a password, run the following command to lock the account until it can be determined why it does not have a password:
# passwd -l <username>
Also, check to see if the account is logged in and investigate what it is being used for to determine if it needs to be forced off.

See Also

https://workbench.cisecurity.org/files/2485

Item Details

Category: IDENTIFICATION AND AUTHENTICATION

References: 800-53|IA-5(1)(a)

Plugin: Unix

Control ID: 9fa81de4e7c3fde2a5db0dac96b9db9496d95667cb4a90921a65cf69b600451e