5.4.3 Ensure default group for the root account is GID 0

Information

The usermod command can be used to specify which group the root user belongs to. This affects permissions of files that are created by the root user. Using GID 0 for the root account helps prevent root -owned files from accidentally becoming accessible to non-privileged users.

Solution

Run the following command to set the root user default group to GID 0: # usermod -g 0 root

See Also

https://workbench.cisecurity.org/files/1866

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-2c., CSCv6|5

Plugin: Unix

Control ID: 4a58a405acee7a2f0c5794c538e2945191a67fbe44e7abcdb38084fe1917f667