AUTH-9222 - Unique authentication groups

(Authentication)

This information is provided as part of the Lynis community project. It is related to Lynis control AUTH-9222 and should be considered as-is and without guarantees. Any advice and commands should be tested before implementing them in production environments.

Description

Groups should be unique to ensure each user has the appropriate permissions.

How to solve

Perform a check on your group files (/etc/group and /etc/gshadow) for any double group references. Usually this indicates a typo or incorrect usage of group IDs.

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Lynis is a technical security auditing tool for Unix flavors like Linux, macOS, AIX, Solaris, and *BSD. It is open source software and free to use. Typical usage include system hardening, compliance testing, and vulnerability scanning. The project has an active community, including development via GitHub.

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