OL 9 must be configured so that the file integrity tool verifies extended attributes.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-271500	OL09-00-000304	SV-271500r1091212_rule		Low

Description

OL 9 installation media ships with an optional file integrity tool called Advanced Intrusion Detection Environment (AIDE). AIDE is highly configurable at install time. This requirement assumes the "aide.conf" file is under the "/etc" directory. Extended attributes in file systems are used to contain arbitrary data and file metadata with security implications.

STIG	Date
Oracle Linux 9 Security Technical Implementation Guide	2025-05-08

Details

Check Text (C-75550r1091210_chk)

Verify that OL 9 is configured so that AIDE is configured to verify extended attributes with the following command:

$ sudo grep xattrs /etc/aide.conf
All= p+i+n+u+g+s+m+S+sha512+acl+xattrs+selinux

If the "xattrs" rule is not being used on all uncommented selection lines in the "/etc/aide.conf" file, or extended attributes are not being checked by another file integrity tool, this is a finding.

Fix Text (F-75457r1091211_fix)

Configure the file integrity tool to check file and directory extended attributes.

If AIDE is installed, ensure the "xattrs" rule is present on all uncommented file and directory selection lists.