Lynis Security Controls

AUTH-9218 - Accounts without password


Lynis checks for users accounts and which ones do not have a password. Accounts without a password are considered to be a bad practice, as each user should prove he or she is the rightful owner of the account. Lacking a password may give more than 1 authorized user access to the account and therefore seriously impact proper accounting. Loss of data or impact to the integrity of data may be the result of lacking passwords.



How to solve

Check each account which shows up without a password. Determine why this is the case and if the account is actually being used. If not, disable the account. If the account is used, determine who is using it. Determine a remediation plan to define a password and test functionality of the account and system, to prevent business processes suddenly failing. For example, the account may be used in shell scripts or configured in other software components.

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Linux and Unix System Hardening

This information is provided as part of the Lynis community project. It is related to Lynis control AUTH-9218. All information should be considered as-is, without guarantees. Any advice or snippets should be tested before implementing in production environments.


Lynis is a technical security audit tool for Unix flavors like Linux, macOS, AIX, Solaris, and *BSD. It is open source software and free to use. The project has an active community, including open development via GitHub.

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