SLEM 5 default permissions must be defined in such a way that all authenticated users can only read and modify their own files.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-261349 | SLEM-05-411015 | SV-261349r996502_rule | CCI-000366 | medium |
| Description | ||||
| Setting the most restrictive default permissions ensures that when new accounts are created, they do not have unnecessary access. | ||||
| STIG | Date | |||
| SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide | 2025-05-08 | |||
Details
Check Text (C-261349r996502_chk)
Verify SLEM 5 defines default permissions for all authenticated users in such a way that the users can only read and modify their own files with the following command:
> grep -i "^umask" /etc/login.defs
UMASK 077
If the "UMASK" variable is set to "000", the severity is raised to a CAT I and this is a finding.
If the value of "UMASK" is not set to "077", the line is commented out, or the line is missing, this is a finding.
Fix Text (F-64986r995913_fix)
Configure SLEM 5 to define the default permissions for all authenticated users in such a way that the users can only read and modify their own files.
Add or modify the following line in the "/etc/login.defs" file:
UMASK 077