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System files and directories must not have uneven access permissions.


Overview

Finding ID Version Rule ID IA Controls Severity
V-784 GEN001140 SV-44924r1_rule Medium
Description
Discretionary access control is undermined if users, other than a file owner, have greater access permissions to system files and directories than the owner.
STIG Date
SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide 2018-09-19

Details

Check Text ( C-42363r1_chk )
Check system directories for uneven file permissions.

Procedure:
# ls –lL /etc /bin /usr/bin /usr/local/bin /sbin /usr/sbin /usr/local/sbin

Uneven file permissions exist if the file owner has less permissions than the group or other user classes. If any of the files in the above listed directories contain uneven file permissions, this is a finding.
Fix Text (F-38354r1_fix)
Change the mode of files with uneven permissions so owners do not have less permission than group or world users.