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RHEL-10-400315 - RHEL 10 must define default permissions for the bash shell.
Information
The "umask" controls the default access mode assigned to newly created files. A "umask" of "077" limits new files to mode "600" or less permissive. Although "umask" can be represented as a four-digit number, the first digit representing special access modes is typically ignored or required to be "0".This requirement applies to the globally configured system defaults and the local interactive user defaults for each account on the system.
Solution
Configure RHEL 10 to define default permissions for all authenticated users using the bash shell.Add or edit the lines for the "umask" parameter in the "/etc/bashrc" file to "077":
umask 077
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_RHEL_10_V1R1_STIG.zip
Item Details
Audit Name: DISA Red Hat Enterprise Linux 10 STIG v1r1
Category: ACCESS CONTROL
References: 800-53|AC-3, CAT|II, CCI|CCI-000213, Rule-ID|SV-281080r1184687_rule, STIG-ID|RHEL-10-400315, Vuln-ID|V-281080
Plugin: Unix
Control ID: 0c5941fe298251becac822f423c9f6b7482501cdf6e65b3d31661ea42f2e5451