Finding ID | Version | Rule ID | IA Controls | Severity |
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V-230383 | RHEL-08-020351 | SV-230383r627750_rule | Medium |
Description |
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Setting the most restrictive default permissions ensures that when new accounts are created, they do not have unnecessary access. |
STIG | Date |
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Red Hat Enterprise Linux 8 Security Technical Implementation Guide | 2022-09-07 |
Check Text ( C-33052r567895_chk ) |
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Verify the operating system defines default permissions for all authenticated users in such a way that the user can only read and modify their own files. Check for the value of the "UMASK" parameter in "/etc/login.defs" file with the following command: Note: If the value of the "UMASK" parameter is set to "000" in "/etc/login.defs" file, the Severity is raised to a CAT I. # grep -i umask /etc/login.defs UMASK 077 If the value for the "UMASK" parameter is not "077", or the "UMASK" parameter is missing or is commented out, this is a finding. |
Fix Text (F-33027r567896_fix) |
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Configure the operating system to define default permissions for all authenticated users in such a way that the user can only read and modify their own files. Add or edit the line for the "UMASK" parameter in "/etc/login.defs" file to "077": UMASK 077 |