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The AIX root accounts home directory must not have an extended ACL.


Overview

Finding ID Version Rule ID IA Controls Severity
V-91765 AIX7-00-001040 SV-101863r1_rule Medium
Description
Excessive permissions on root home directories allow unauthorized access to root user files.
STIG Date
IBM AIX 7.x Security Technical Implementation Guide 2020-02-24

Details

Check Text ( C-90919r3_chk )
Verify the "root" account's home directory has no extended ACL using command:

# aclget ~root
*
* ACL_type AIXC
*
attributes:
base permissions
owner(root): rwx
group(system): ---
others: ---
extended permissions
disabled

If extended permissions are enabled, the directory has an extended ACL, and this is a finding.
Fix Text (F-97963r1_fix)
Remove the extended ACL from the "root" account's home directory using command:
# acledit ~root

Change extended attributes to disabled.