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The system default umask in /etc/profile must be 077.


Finding ID Version Rule ID IA Controls Severity
V-38647 RHEL-06-000344 SV-50448r1_rule Low
The umask value influences the permissions assigned to files when they are created. A misconfigured umask value could result in files with excessive permissions that can be read and/or written to by unauthorized users.
Red Hat Enterprise Linux 6 Security Technical Implementation Guide 2015-05-26


Check Text ( C-46207r1_chk )
Verify the "umask" setting is configured correctly in the "/etc/profile" file by running the following command:

# grep "umask" /etc/profile

All output must show the value of "umask" set to 077, as shown in the below:

# grep "umask" /etc/profile
umask 077

If the above command returns no output, or if the umask is configured incorrectly, this is a finding.
Fix Text (F-43596r1_fix)
To ensure the default umask controlled by "/etc/profile" is set properly, add or correct the "umask" setting in "/etc/profile" to read as follows:

umask 077