RHEL 9 /etc/group- file must be owned by root.

STIG ID: RHEL-09-232100  |  SRG: SRG-OS-000480-GPOS-00227 |  Severity: medium |  CCI: CCI-000366 |  Vulnerability Id: V-257900 | 

Vulnerability Discussion

The "/etc/group-" file is a backup file of "/etc/group", and as such, contains information regarding groups that are configured on the system. Protection of this file is important for system security.

Check

Verify the ownership of the "/etc/group-" file with the following command:

$ sudo stat -c "%U %n" /etc/group-

root /etc/group-

If "/etc/group-" file does not have an owner of "root", this is a finding.

Fix

Change the owner of the file /etc/group- to root by running the following command:

$ sudo chown root /etc/group-
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