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The AIX user home directories must not have extended ACLs.


Overview

Finding ID Version Rule ID IA Controls Severity
V-215332 AIX7-00-003019 SV-215332r508663_rule Medium
Description
Excessive permissions on home directories allow unauthorized access to user files.
STIG Date
IBM AIX 7.x Security Technical Implementation Guide 2023-02-13

Details

Check Text ( C-16530r294447_chk )
Verify user home directories have no extended ACLs using command:

# cat /etc/passwd | cut -f 6,6 -d ":" | xargs -n1 aclget
*
* ACL_type AIXC
*
attributes:
base permissions
owner(root): rwx
group(system): r-x
others: r---
extended permissions
disabled

If extended permissions are not disabled, this is a finding.
Fix Text (F-16528r294448_fix)
Remove the extended ACL from the user home directory and disable extended permissions:
# acledit