System files and directories must not have uneven access permissions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-784	GEN001140	SV-784r6_rule	ECCD-1 ECCD-2	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
Draft AIX Security Technical Implementation Guide	2011-08-17

Details

Check Text ( C-289r4_chk )
Check system directories for uneven file permissions. Procedure: # ls –lL /etc /bin /usr/bin /usr/lbin /usr/usb /sbin /usr/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-24427r1_fix)
Change the mode of files with uneven permissions so owners do not have less permission than group or world users.