The system default umask in /etc/login.defs must be 077.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-38645	RHEL-06-000345	SV-50446r1_rule		Low

Description
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.

STIG	Date
Red Hat Enterprise Linux 6 Security Technical Implementation Guide	2016-12-16

Details

Check Text ( C-46205r1_chk )
Verify the "umask" setting is configured correctly in the "/etc/login.defs" file by running the following command: # grep -i "umask" /etc/login.defs All output must show the value of "umask" set to 077, as shown in the below: # grep -i "umask" /etc/login.defs UMASK 077 If the above command returns no output, or if the umask is configured incorrectly, this is a finding.

Fix Text (F-43594r1_fix)
To ensure the default umask controlled by "/etc/login.defs" is set properly, add or correct the "umask" setting in "/etc/login.defs" to read as follows: UMASK 077